php漫笔1-php图片处理

<span style="color: #000000;">php         </span><span style="color: #008000;">//</span><span style="color: #008000;">session</span>    <span style="color: #008080;">session_start</span><span style="color: #000000;">();    </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_POST</span>['submit'] == 'Upload'<span style="color: #000000;">)    {            </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_FILES</span>['uploadfile']['error'] !=<span style="color: #000000;"> UPLOAD_ERR_OK)            {                </span><span style="color: #0000ff;">switch</span>(<span style="color: #800080;">$_FILES</span>['uploadfile']['error'<span style="color: #000000;">])                {                    </span><span style="color: #0000ff;">case</span> UPLOAD_ERR_INI_SIZE: <span style="color: #008000;">//</span><span style="color: #008000;">其值为 1，上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值</span>                        <span style="color: #0000ff;">die</span>('上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值'<span style="color: #000000;">);                    </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                    </span><span style="color: #0000ff;">case</span> UPLOAD_ERR_FORM_SIZE: <span style="color: #008000;">//</span><span style="color: #008000;">其值为 2，上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值</span>                        <span style="color: #0000ff;">die</span>('上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值'<span style="color: #000000;">);                    </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                    </span><span style="color: #0000ff;">case</span> UPLOAD_ERR_PARTIAL: <span style="color: #008000;">//</span><span style="color: #008000;">其值为 3，文件只有部分被上传</span>                        <span style="color: #0000ff;">die</span>('文件只有部分被上传'<span style="color: #000000;">);                    </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                    </span><span style="color: #0000ff;">case</span> UPLOAD_ERR_NO_FILE: <span style="color: #008000;">//</span><span style="color: #008000;">其值为 4，没有文件被上传</span>                        <span style="color: #0000ff;">die</span>('没有文件被上传'<span style="color: #000000;">);                    </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                    </span><span style="color: #0000ff;">case</span> UPLOAD_ERR_NO_TMP_DIR: <span style="color: #008000;">//</span><span style="color: #008000;">其值为 6，找不到临时文件夹</span>                        <span style="color: #0000ff;">die</span>('找不到临时文件夹'<span style="color: #000000;">);                    </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                    </span><span style="color: #0000ff;">case</span> UPLOAD_ERR_CANT_WRITE: <span style="color: #008000;">//</span><span style="color: #008000;">其值为 7，文件写入失败</span>                        <span style="color: #0000ff;">die</span>('文件写入失败'<span style="color: #000000;">);                    </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                    </span><span style="color: #0000ff;">case</span> UPLOAD_ERR_EXTENSION: <span style="color: #008000;">//</span><span style="color: #008000;">其他异常</span>                        <span style="color: #0000ff;">die</span>('其他异常'<span style="color: #000000;">);                    </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                }            }        </span><span style="color: #008000;">//</span><span style="color: #008000;">判断图片的后缀</span>        <span style="color: #0000ff;">switch</span>(<span style="color: #800080;">$type</span><span style="color: #000000;">)        {            </span><span style="color: #0000ff;">case</span> IMAGETYPE_GIF:                <span style="color: #800080;">$ext</span> = '.gif'<span style="color: #000000;">;            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;            </span><span style="color: #0000ff;">case</span> IMAGETYPE_JPEG:                <span style="color: #800080;">$ext</span> = '.jpg'<span style="color: #000000;">;            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                </span><span style="color: #0000ff;">case</span> IMAGETYPE_PNG:                <span style="color: #800080;">$ext</span> = '.png'<span style="color: #000000;">;            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                </span><span style="color: #0000ff;">default</span>    :                <span style="color: #0000ff;">die</span>('您上传的文件不支持的文件类型。'<span style="color: #000000;">);        }        </span><span style="color: #008000;">//</span><span style="color: #008000;">关键位置-取出文件后缀</span>        <span style="color: #800080;">$_SESSION</span>['ext'] = <span style="color: #800080;">$ext</span><span style="color: #000000;">;    }        </span><span style="color: #008000;">/*</span><span style="color: #008000;">    //改变图像的大小为1280x960的方法    function resizepic($imgsrc,$imagename,$toimgwidth,$toimgheigth)    {        //$imgsrc：图片路径 $imgname: 图片保存的名称 $toimgwidth: 图片最终的宽度 $toimgheigth: 图片最终的高度        $arr = getimagesize($imgsrc);        $imgWidth =  $toimgwidth;        $imgHeigth =  $toimgheigth;        if($_SESSION['ext'] == '.jpg')        {             header('Content-Type:image/jpeg');             $imgSrc = imagecreatefromjpeg($imgsrc);        }        if($_SESSION['ext'] == '.png')        {            header('Content-Type:image/png');            $imgSrc = imagecreatefrompng($imgsrc);        }        if($_SESSION['ext'] == '.gif')        {            header('Content-Type:image/gif');            $imgSrc = imagecreatefromgif($imgsrc);        }                $image = imagecreatetruecolor($imgWidth, $imgHeigth);        imagecopyresampled($image,$imgSrc,0,0,0,0,$imgWidth,$imgHeigth,$arr[0],$arr[1]);        if($_SESSION['ext'] == '.jpg')        {            imagejpeg($image,$dir.'/'.$imagename);        }        if($_SESSION['ext'] == '.png')        {            imagepng($image,$dir.'/'.$imagename);        }        if($_SESSION['ext'] == '.gif')        {            imagegif($image,$dir.'/'.$imagename);        }        //销毁由url生成的图片        imagedestroy($image);    }    </span><span style="color: #008000;">*/</span>        <span style="color: #008000;">//</span><span style="color: #008000;">创建moviesite数据库--MySQL</span>    <span style="color: #800080;">$coon</span> = <span style="color: #008080;">mysql_connect</span>("localhost","root","lifu") or <span style="color: #0000ff;">die</span>('不能连接到数据库'<span style="color: #000000;">);    </span><span style="color: #0000ff;">if</span> (!<span style="color: #800080;">$coon</span><span style="color: #000000;">)      {          </span><span style="color: #0000ff;">die</span>('无法连接: ' . <span style="color: #008080;">mysql_error</span><span style="color: #000000;">());      }        </span><span style="color: #0000ff;">if</span> (<span style="color: #008080;">mysql_query</span>("CREATE DATABASE if not exists moviesite",<span style="color: #800080;">$coon</span>))    <span style="color: #008000;">//</span><span style="color: #008000;">如果没有就创建数据库</span><span style="color: #000000;">      {          </span><span style="color: #0000ff;">echo</span> "数据库创建成功<br>"<span style="color: #000000;">;      }    </span><span style="color: #0000ff;">else</span><span style="color: #000000;">      {          </span><span style="color: #0000ff;">echo</span> "数据库创建错误: " . <span style="color: #008080;">mysql_error</span><span style="color: #000000;">();      }    </span><span style="color: #008000;">//</span><span style="color: #008000;"> 创建images表</span>    <span style="color: #008080;">mysql_select_db</span>("moviesite", <span style="color: #800080;">$coon</span><span style="color: #000000;">);    </span><span style="color: #008000;">//</span><span style="color: #008000;">如果没有就创建表</span>    <span style="color: #800080;">$sql</span> = "<span style="color: #000000;">CREATE TABLE if not exists images                           (        image_id int NOT NULL AUTO_INCREMENT,         PRIMARY KEY(image_id),        image_caption varchar(15),         image_username varchar(15),        image_filename varchar(15),        image_date  datetime    )</span>"<span style="color: #000000;">;        </span><span style="color: #008080;">mysql_query</span>(<span style="color: #800080;">$sql</span>,<span style="color: #800080;">$coon</span><span style="color: #000000;">);    </span><span style="color: #008080;">mysql_close</span>(<span style="color: #800080;">$coon</span><span style="color: #000000;">);        </span><span style="color: #008000;">//</span><span style="color: #008000;">修改图片效果</span>    <span style="color: #800080;">$db</span> = <span style="color: #008080;">mysql_connect</span>('localhost','root','lifu') or <span style="color: #0000ff;">die</span>('不能连接到数据库'<span style="color: #000000;">);    </span><span style="color: #008080;">mysql_select_db</span>('moviesite',<span style="color: #800080;">$db</span>) or <span style="color: #0000ff;">die</span>(<span style="color: #008080;">mysql_error</span>(<span style="color: #800080;">$db</span><span style="color: #000000;">));    </span><span style="color: #008000;">//</span><span style="color: #008000;">上传文件的路径</span>    <span style="color: #800080;">$dir</span> = 'D:\phpStudy\WWW\loadimages\images'<span style="color: #000000;">;        </span><span style="color: #008000;">//</span><span style="color: #008000;">缩略图的路径</span>    <span style="color: #800080;">$thumbdir</span> = 'D:\phpStudy\WWW\loadimages\images\thumbs'<span style="color: #000000;">;        </span><span style="color: #008000;">//</span><span style="color: #008000;">设置环境变量</span>    <span style="color: #008080;">putenv</span>('GDFONTPATH='.'C:\Windows\Fonts'<span style="color: #000000;">);    </span><span style="color: #800080;">$font</span> = "C:\Windows\Fonts\arial.ttf"<span style="color: #000000;">;        </span><span style="color: #008000;">//</span><span style="color: #008000;">upload_image.php页面传递过来的参数，如果是上传图片</span>    <span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_POST</span>['submit'] == 'Upload'<span style="color: #000000;">)    {        </span><span style="color: #008000;">/*</span><span style="color: #008000;">代码重复            if($_FILES['uploadfile']['error'] != UPLOAD_ERR_OK)            {                switch($_FILES['uploadfile']['error'])                {                    case UPLOAD_ERR_INI_SIZE: //其值为 1，上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值                        die('上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值');                    break;                    case UPLOAD_ERR_FORM_SIZE: //其值为 2，上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值                        die('上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值');                    break;                    case UPLOAD_ERR_PARTIAL: //其值为 3，文件只有部分被上传                        die('文件只有部分被上传');                    break;                    case UPLOAD_ERR_NO_FILE: //其值为 4，没有文件被上传                        die('没有文件被上传');                    break;                    case UPLOAD_ERR_NO_TMP_DIR: //其值为 6，找不到临时文件夹                        die('找不到临时文件夹');                    break;                    case UPLOAD_ERR_CANT_WRITE: //其值为 7，文件写入失败                        die('文件写入失败');                    break;                    case UPLOAD_ERR_EXTENSION: //其他异常                        die('其他异常');                    break;                }            }            </span><span style="color: #008000;">*/</span>                <span style="color: #800080;">$image_caption</span> = <span style="color: #800080;">$_POST</span>['caption'<span style="color: #000000;">];        </span><span style="color: #800080;">$image_username</span> = <span style="color: #800080;">$_POST</span>['username'<span style="color: #000000;">];        </span><span style="color: #800080;">$image_date</span> = <span style="color: #008080;">date</span>('Y-m-D'<span style="color: #000000;">);        </span><span style="color: #008000;">/*</span><span style="color: #008000;">getimagesize方法返回一个数组，        $width : 索引 0 包含图像宽度的像素值，        $height : 索引 1 包含图像高度的像素值，        $type : 索引 2 是图像类型的标记：        = GIF，2 = JPG， 3 = PNG， 4 = SWF， 5 = PSD， 6 = BMP，         = TIFF(intel byte order)，8 = TIFF(motorola byte order)，        = JPC，10 = JP2，11 = JPX，12 = JB2，13 = SWC，14 = IFF，15 = WBMP，16 = XBM，        $attr : 索引 3 是文本字符串，内容为“height="yyy" width="xxx"”，可直接用于 IMG 标记        </span><span style="color: #008000;">*/</span>                <span style="color: #0000ff;">list</span>(<span style="color: #800080;">$width</span>,<span style="color: #800080;">$height</span>,<span style="color: #800080;">$type</span>,<span style="color: #800080;">$attr</span>) = <span style="color: #008080;">getimagesize</span>(<span style="color: #800080;">$_FILES</span>['uploadfile']['tmp_name'<span style="color: #000000;">]);                </span><span style="color: #008000;">//</span><span style="color: #008000;">imagecreatefromgXXX方法从一个url路径中创建一个新的图片</span>        <span style="color: #0000ff;">switch</span>(<span style="color: #800080;">$type</span><span style="color: #000000;">)        {            </span><span style="color: #0000ff;">case</span> IMAGETYPE_GIF:                <span style="color: #800080;">$image</span> = imagecreatefromgif(<span style="color: #800080;">$_FILES</span>['uploadfile']['tmp_name']) or <span style="color: #0000ff;">die</span>('你上传的文件是不支持的文件类型'<span style="color: #000000;">);                </span><span style="color: #800080;">$ext</span> = '.gif'<span style="color: #000000;">;                </span><span style="color: #800080;">$array</span> = <span style="color: #008080;">getimagesize</span>(<span style="color: #800080;">$_FILES</span>['uploadfile']['tmp_name'<span style="color: #000000;">]);            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;            </span><span style="color: #0000ff;">case</span> IMAGETYPE_JPEG:                <span style="color: #800080;">$image</span> = imagecreatefromjpeg(<span style="color: #800080;">$_FILES</span>['uploadfile']['tmp_name']) or <span style="color: #0000ff;">die</span>('你上传的文件是不支持的文件类型'<span style="color: #000000;">);                </span><span style="color: #800080;">$ext</span> = '.jpg'<span style="color: #000000;">;                </span><span style="color: #800080;">$array</span> = <span style="color: #008080;">getimagesize</span>(<span style="color: #800080;">$_FILES</span>['uploadfile']['tmp_name'<span style="color: #000000;">]);            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                </span><span style="color: #0000ff;">case</span> IMAGETYPE_PNG:                <span style="color: #800080;">$image</span> = imagecreatefrompng(<span style="color: #800080;">$_FILES</span>['uploadfile']['tmp_name']) or <span style="color: #0000ff;">die</span>('你上传的文件是不支持的文件类型'<span style="color: #000000;">);                </span><span style="color: #800080;">$ext</span> = '.png'<span style="color: #000000;">;                </span><span style="color: #800080;">$array</span> = <span style="color: #008080;">getimagesize</span>(<span style="color: #800080;">$_FILES</span>['uploadfile']['tmp_name'<span style="color: #000000;">]);            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;                </span><span style="color: #0000ff;">default</span>    :                <span style="color: #0000ff;">die</span>('您上传的文件不支持的文件类型。'<span style="color: #000000;">);        }                        </span><span style="color: #008000;">//</span><span style="color: #008000;">将图片改为1280X960        //新建一个指定大小的真彩色图像big</span>        <span style="color: #800080;">$big</span> = imagecreatetruecolor(1280, 960<span style="color: #000000;">);        </span><span style="color: #008000;">//</span><span style="color: #008000;">重采样拷贝部分图像并调整大小为1280X960</span>        imagecopyresampled(<span style="color: #800080;">$big</span>, <span style="color: #800080;">$image</span>, 0, 0, 0, 0, 1280, 960, <span style="color: #800080;">$array</span>[0], <span style="color: #800080;">$array</span>[1<span style="color: #000000;">]);                        </span><span style="color: #800080;">$query</span> = 'insert into images(image_caption,image_username,image_date) values ("'.<span style="color: #800080;">$image_caption</span>.'","'.<span style="color: #800080;">$image_username</span>.'",now())'<span style="color: #000000;">;        </span><span style="color: #008080;">mysql_query</span>(<span style="color: #800080;">$query</span> , <span style="color: #800080;">$db</span>) or <span style="color: #0000ff;">die</span>(<span style="color: #008080;">mysql_error</span>(<span style="color: #800080;">$db</span><span style="color: #000000;">));        </span><span style="color: #800080;">$last_id</span> = <span style="color: #008080;">mysql_insert_id</span><span style="color: #000000;">();        </span><span style="color: #008000;">//</span><span style="color: #008000;">用写入的id作为图片的名字，避免同名的文件存放在同一目录中</span>        <span style="color: #800080;">$imagename</span> = <span style="color: #800080;">$last_id</span>.<span style="color: #800080;">$ext</span><span style="color: #000000;">;        </span><span style="color: #800080;">$image_id</span> = <span style="color: #800080;">$last_id</span><span style="color: #000000;">;                </span><span style="color: #800080;">$query</span> = 'update images set image_filename="'.<span style="color: #800080;">$imagename</span>.'" where image_id='.<span style="color: #800080;">$last_id</span><span style="color: #000000;">;        </span><span style="color: #008080;">mysql_query</span>(<span style="color: #800080;">$query</span> , <span style="color: #800080;">$db</span>) or <span style="color: #0000ff;">die</span>(<span style="color: #008080;">mysql_error</span>(<span style="color: #800080;">$db</span><span style="color: #000000;">));        </span><span style="color: #008000;">//</span><span style="color: #008000;">有url指定的图片创建图片并保存到指定目录</span>        <span style="color: #0000ff;">switch</span>(<span style="color: #800080;">$type</span><span style="color: #000000;">)        {            </span><span style="color: #0000ff;">case</span> IMAGETYPE_GIF:<span style="color: #000000;">                imagegif(</span><span style="color: #800080;">$big</span>,<span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$imagename</span><span style="color: #000000;">);            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;            </span><span style="color: #0000ff;">case</span> IMAGETYPE_JPEG:<span style="color: #000000;">                imagejpeg(</span><span style="color: #800080;">$big</span>,<span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$imagename</span><span style="color: #000000;">);            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;            </span><span style="color: #0000ff;">case</span> IMAGETYPE_PNG:<span style="color: #000000;">                imagepng(</span><span style="color: #800080;">$big</span>,<span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$imagename</span><span style="color: #000000;">);            </span><span style="color: #0000ff;">break</span><span style="color: #000000;">;        }        </span><span style="color: #008000;">//</span><span style="color: #008000;">销毁由url生成的图片</span>        imagedestroy(<span style="color: #800080;">$big</span><span style="color: #000000;">);        imagedestroy(</span><span style="color: #800080;">$image</span><span style="color: #000000;">);            }    </span><span style="color: #0000ff;">else</span>  <span style="color: #008000;">//</span><span style="color: #008000;">如果图片已经上传，则从数据库中取图片名字</span><span style="color: #000000;">    {            </span><span style="color: #800080;">$query</span> = 'select image_id,image_caption,image_username,image_date from images where image_id='.<span style="color: #800080;">$_POST</span>['id'<span style="color: #000000;">];        </span><span style="color: #800080;">$result</span> = <span style="color: #008080;">mysql_query</span>(<span style="color: #800080;">$query</span>,<span style="color: #800080;">$db</span>) or <span style="color: #0000ff;">die</span>(<span style="color: #008080;">mysql_error</span>(<span style="color: #800080;">$db</span><span style="color: #000000;">));        </span><span style="color: #008000;">//</span><span style="color: #008000;">将结果集转换成关联数据，再将关联数组的键名当作变量名，值作为变量的值。</span>        <span style="color: #008080;">extract</span>(<span style="color: #008080;">mysql_fetch_assoc</span>(<span style="color: #800080;">$result</span><span style="color: #000000;">));        </span><span style="color: #0000ff;">list</span>(<span style="color: #800080;">$width</span>,<span style="color: #800080;">$height</span>,<span style="color: #800080;">$type</span>,<span style="color: #800080;">$attr</span>) = <span style="color: #008080;">getimagesize</span>(<span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$image_id</span>.<span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]);    }    </span><span style="color: #008000;">//</span><span style="color: #008000;">如果是保存图片</span>    <span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_POST</span>['submit'] == 'Save'<span style="color: #000000;">)    {            </span><span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['id']) && <span style="color: #008080;">ctype_digit</span>(<span style="color: #800080;">$_POST</span>['id']) && <span style="color: #008080;">file_exists</span>(<span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$_POST</span>['id'].<span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]))        {            </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.jpg'<span style="color: #000000;">)            {                </span><span style="color: #800080;">$image</span> = imagecreatefromjpeg(<span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$_POST</span>['id'].<span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]);            }            </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.png'<span style="color: #000000;">)            {                </span><span style="color: #800080;">$image</span> = imagecreatefrompng(<span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$_POST</span>['id'].<span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]);            }            </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.gif'<span style="color: #000000;">)            {                </span><span style="color: #800080;">$image</span> = imagecreatefromgif(<span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$_POST</span>['id'].<span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]);            }        }        </span><span style="color: #0000ff;">else</span><span style="color: #000000;">        {            </span><span style="color: #0000ff;">die</span>('指定的无效图像'<span style="color: #000000;">);        }                        </span><span style="color: #800080;">$effect</span> = (<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['effect'])) ? <span style="color: #800080;">$_POST</span>['effect'] : -1<span style="color: #000000;">;                </span><span style="color: #0000ff;">switch</span>(<span style="color: #800080;">$effect</span><span style="color: #000000;">)        {            </span><span style="color: #0000ff;">case</span> IMG_FILTER_NEGATE:<span style="color: #000000;">                imagefilter(</span><span style="color: #800080;">$image</span> , IMG_FILTER_NEGATE);     <span style="color: #008000;">//</span><span style="color: #008000;">将图像中所有颜色反转</span>            <span style="color: #0000ff;">break</span><span style="color: #000000;">;            </span><span style="color: #0000ff;">case</span> IMG_FILTER_GRAYSCALE:<span style="color: #000000;">                imagefilter(</span><span style="color: #800080;">$image</span> , IMG_FILTER_GRAYSCALE);  <span style="color: #008000;">//</span><span style="color: #008000;">将图像转换为灰度的</span>            <span style="color: #0000ff;">break</span><span style="color: #000000;">;            </span><span style="color: #0000ff;">case</span> IMG_FILTER_EMBOSS:<span style="color: #000000;">                imagefilter(</span><span style="color: #800080;">$image</span> , IMG_FILTER_EMBOSS);     <span style="color: #008000;">//</span><span style="color: #008000;">使图像浮雕化</span>            <span style="color: #0000ff;">break</span><span style="color: #000000;">;            </span><span style="color: #0000ff;">case</span> IMG_FILTER_GAUSSIAN_BLUR:<span style="color: #000000;">                imagefilter(</span><span style="color: #800080;">$image</span> , IMG_FILTER_GAUSSIAN_BLUR); <span style="color: #008000;">//</span><span style="color: #008000;">用高斯算法模糊图像</span>            <span style="color: #0000ff;">break</span><span style="color: #000000;">;            }                </span><span style="color: #008000;">//</span><span style="color: #008000;">图片指定位置打印文字</span>        <span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['emb_caption'<span style="color: #000000;">]))        {    </span><span style="color: #008000;">/*</span><span style="color: #008000;">            array imagettftext ( resource $image , float $size , float $angle , int $x , int $y , int $color , string $fontfile , string $text )            $image  图像源   $size    字体大小   $angle   逆时针旋转角度   $fontfile  字体类型   $text  文本内容            </span><span style="color: #008000;">*/</span><span style="color: #000000;">            imagettftext(</span><span style="color: #800080;">$image</span> , 12 , 0 , 20 , 20 , 0 , <span style="color: #800080;">$font</span> , <span style="color: #800080;">$image_caption</span><span style="color: #000000;">);        }                </span><span style="color: #008000;">//</span><span style="color: #008000;">图片指定位置打LOGO</span>        <span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['emb_logo'<span style="color: #000000;">]))        {            </span><span style="color: #008000;">//</span><span style="color: #008000;">获取水印图片的尺寸并创建水印</span>            <span style="color: #0000ff;">list</span>(<span style="color: #800080;">$wmk_width</span> , <span style="color: #800080;">$wmk_height</span>) = <span style="color: #008080;">getimagesize</span>('images/logo.png'<span style="color: #000000;">);            </span><span style="color: #008000;">//</span><span style="color: #008000;">$x = ($width-$wmk_width) / 2;            //$y = ($height-$wmk_height)/2;</span>            <span style="color: #800080;">$x</span> = <span style="color: #800080;">$width</span>-<span style="color: #800080;">$wmk_width</span><span style="color: #000000;">;            </span><span style="color: #800080;">$y</span> = <span style="color: #800080;">$height</span>-<span style="color: #800080;">$wmk_height</span><span style="color: #000000;">;            </span><span style="color: #800080;">$wmk</span> = imagecreatefrompng('images/logo.png'<span style="color: #000000;">);            </span><span style="color: #008000;">//</span><span style="color: #008000;">把水印图片和原图片合并在一起</span>            <span style="color: #008000;">/*</span><span style="color: #008000;">            将 wmk 图像中坐标从 0，0 开始，宽度为 $wmk_width，高度为 $wmk_height 的一部分拷贝到 image 图像中坐标为 $x 和 $y 的位置上。            两图像将根据 pct=20 来决定合并程度，其值范围从 0 到 100。当 pct = 0 时，实际上什么也没做，当为                                 100 时对于调色板图像本函数和 imagecopy() 完全一样，它对真彩色图像实现了 alpha 透明。            </span><span style="color: #008000;">*/</span><span style="color: #000000;">            imagecopymerge(</span><span style="color: #800080;">$image</span> , <span style="color: #800080;">$wmk</span> , <span style="color: #800080;">$x</span> , <span style="color: #800080;">$y</span> , 0 , 0 , <span style="color: #800080;">$wmk_width</span> , <span style="color: #800080;">$wmk_height</span> , 20<span style="color: #000000;">);            </span><span style="color: #008000;">//</span><span style="color: #008000;">清除水印图片</span>            imagedestroy(<span style="color: #800080;">$wmk</span><span style="color: #000000;">);        }                </span><span style="color: #008000;">//</span><span style="color: #008000;">缩略图大小</span>        <span style="color: #800080;">$thumb_width</span> = <span style="color: #800080;">$width</span> * 0.10<span style="color: #000000;">;        </span><span style="color: #800080;">$thumb_height</span> = <span style="color: #800080;">$height</span> * 0.10<span style="color: #000000;">;                               </span><span style="color: #008000;">//</span><span style="color: #008000;">创建一个缩略图</span>        <span style="color: #800080;">$thumb</span> = imagecreatetruecolor(<span style="color: #800080;">$thumb_width</span>, <span style="color: #800080;">$thumb_height</span><span style="color: #000000;">);        imagecopyresampled(</span><span style="color: #800080;">$thumb</span>, <span style="color: #800080;">$image</span>, 0, 0, 0, 0, <span style="color: #800080;">$thumb_width</span>, <span style="color: #800080;">$thumb_height</span>, <span style="color: #800080;">$width</span>, <span style="color: #800080;">$height</span><span style="color: #000000;">);                </span><span style="color: #008000;">//</span><span style="color: #008000;">保存缩略图</span>        <span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.jpg'<span style="color: #000000;">)        {            imagejpeg(</span><span style="color: #800080;">$thumb</span>, <span style="color: #800080;">$thumbdir</span> . '/' . <span style="color: #800080;">$_POST</span>['id'] . <span style="color: #800080;">$_SESSION</span>['ext'], 100<span style="color: #000000;">);        }        </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.png'<span style="color: #000000;">)        {</span>            imagepng(<span style="color: #800080;">$thumb</span>, <span style="color: #800080;">$thumbdir</span> . '/' . <span style="color: #800080;">$_POST</span>['id'] . <span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]);        }        </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.gif'<span style="color: #000000;">)        {            imagegif(</span><span style="color: #800080;">$thumb</span>, <span style="color: #800080;">$thumbdir</span> . '/' . <span style="color: #800080;">$_POST</span>['id'] . <span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]);        }        </span><span style="color: #0000ff;">echo</span> "修改好的缩略图：<img  src="%22.%22images/thumbs/%22%20.%20<span%20style=%22color:%20#800080;%22>%24_POST</span>%5B" id .   style="max-width:90%" alt="php漫笔1-php图片处理" >$_SESSION['ext']."' alt='' /> <br>"<span style="color: #000000;">;        </span><span style="color: #008000;">//</span><span style="color: #008000;">清除缩略图</span>        imagedestroy(<span style="color: #800080;">$thumb</span><span style="color: #000000;">);                </span><span style="color: #008000;">//</span><span style="color: #008000;">保存原图</span>        <span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.jpg'<span style="color: #000000;">)        {            imagejpeg(</span><span style="color: #800080;">$image</span> , <span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$_POST</span>['id'].<span style="color: #800080;">$_SESSION</span>['ext'] , 100<span style="color: #000000;">);        }        </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.png'<span style="color: #000000;">)        {            </span><span style="color: #008000;">//</span><span style="color: #008000;">压缩等级必须是0-9的png文件</span>            imagepng(<span style="color: #800080;">$image</span> , <span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$_POST</span>['id'].<span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]);        }        </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_SESSION</span>['ext'] == '.gif'<span style="color: #000000;">)        {            imagegif(</span><span style="color: #800080;">$image</span> , <span style="color: #800080;">$dir</span>.'/'.<span style="color: #800080;">$_POST</span>['id'].<span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">]);        }            </span><span style="color: #0000ff;">echo</span> "修改好的大图：<img  src="%22.%22images/%22%20.%20<span%20style=%22color:%20#800080;%22>%24_POST</span>%5B" id .   style="max-width:90%" alt="php漫笔1-php图片处理" >$_SESSION['ext']."' alt='' /> <br>"<span style="color: #000000;">;    </span>?>                                    <title>你的图片在这！</title>                                        <h1>你的图片被保存！</h1>                <img  src="images/<?php%20echo%20<span%20  style="max-width:90%"php漫笔1-php图片处理" >$_POST['id'];?>.jpg" alt="" />                        <span style="color: #000000;">php     }    </span><span style="color: #0000ff;">else</span><span style="color: #000000;">    {       </span>?>                        <title>你的图片在这！</title>                            <p>这里是你上传到服务器上的图片：</p>                <span style="color: #000000;">php        </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$_POST</span>['submit'] == 'Upload'<span style="color: #000000;">)        {            </span><span style="color: #800080;">$imagename</span> = 'images/'.<span style="color: #800080;">$image_id</span>.<span style="color: #800080;">$_SESSION</span>['ext'<span style="color: #000000;">];        }        </span><span style="color: #0000ff;">else</span><span style="color: #000000;">        {            </span><span style="color: #800080;">$imagename</span> = 'image_effect.php?id='.<span style="color: #800080;">$image_id</span>.'&e='.<span style="color: #800080;">$_POST</span>['effect'<span style="color: #000000;">];            </span><span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['emb_caption'<span style="color: #000000;">]))            {                </span><span style="color: #800080;">$imagename</span> .= '&capt='.<span style="color: #008080;">urlencode</span>(<span style="color: #800080;">$image_caption</span><span style="color: #000000;">);            }            </span><span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['emb_logo'<span style="color: #000000;">]))            {                </span><span style="color: #800080;">$imagename</span> .= '&logo=1'<span style="color: #000000;">;            }        }    </span>?>    <div>    <?php <span style="color: #0000ff;">echo  "src：".<span style="color: #800080;">$imagename</span> ;  ?>    <img  src="<?php%20echo%20<span%20  style="max-width:90%"php漫笔1-php图片处理" >$imagename;?>" style="float:left;" alt="" />    <table>        <tr>            <td>Image save <span style="color: #0000ff;">as</span>:</td>            <td>
<?php <span style="color: #0000ff;">echo  "moviesite数据库images表第".<span style="color: #800080;">$image_id</span> ."行！" ;?></td>        </tr>        <tr>            <td>Height:</td>            <td>
<?php <span style="color: #0000ff;">echo <span style="color: #800080;">$height</span>;?></td>        </tr>        <tr>            <td>Widht:</td>            <td>
<?php <span style="color: #0000ff;">echo <span style="color: #800080;">$width</span>;?></td>        </tr>        <tr>            <td>Upload <span style="color: #008080;">date</span>:</td>            <td>
<?php <span style="color: #0000ff;">echo <span style="color: #800080;">$image_date</span>;?></td>        </tr>    </table>    <p>你可以从下面的选项列表中对你的图像应用一个特殊的效果。注：使用任何一个过滤器，保存一个图像 <em>可以撤消</em></p>    <form action="<?php%20echo%20<span%20style=" color:>$_SERVER['PHP_SELF'];?>" method="post">                    <input type="hidden" name="id" value="<?php echo <span style=" color:>$image_id;?>"/>            <select name="effect" id="">                <option value="-1">保持原状</option>                <span style="color: #000000;">php                     </span><span style="color: #0000ff;">echo</span> '<option value="'.IMG_FILTER_GRAYSCALE.'" style="color: #000000;">;                    <span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['effect']) && <span style="color: #800080;">$_POST</span>['effect'] ==<span style="color: #000000;"> IMG_FILTER_GRAYSCALE)                    {                        </span><span style="color: #0000ff;">echo</span> 'selected="selected"'<span style="color: #000000;">;                    }                    </span><span style="color: #0000ff;">echo</span> ' >灰度图像</option>'<span style="color: #000000;">;                                        </span><span style="color: #0000ff;">echo</span> '<option value="'.IMG_FILTER_GAUSSIAN_BLUR.'" style="color: #000000;">;                    <span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['effect']) && <span style="color: #800080;">$_POST</span>['effect'] ==<span style="color: #000000;"> IMG_FILTER_GAUSSIAN_BLUR)                    {                        </span><span style="color: #0000ff;">echo</span> ' selected="selected"'<span style="color: #000000;">;                    }                    </span><span style="color: #0000ff;">echo</span> '>高斯算法模糊图像</option>'<span style="color: #000000;">;                                        </span><span style="color: #0000ff;">echo</span> '<option value="'.IMG_FILTER_EMBOSS.'" style="color: #000000;">;                    <span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['effect']) && <span style="color: #800080;">$_POST</span>['effect'] ==<span style="color: #000000;"> IMG_FILTER_EMBOSS)                    {                        </span><span style="color: #0000ff;">echo</span> 'selected="selected"'<span style="color: #000000;">;                    }                    </span><span style="color: #0000ff;">echo</span> '>图像浮雕化</option>'<span style="color: #000000;">;                                        </span><span style="color: #0000ff;">echo</span> '<option value="'.IMG_FILTER_NEGATE.'" style="color: #000000;">;                    <span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['effect']) && <span style="color: #800080;">$_POST</span>['effect'] ==<span style="color: #000000;"> IMG_FILTER_NEGATE)                    {                        </span><span style="color: #0000ff;">echo</span> 'selected="selected"'<span style="color: #000000;">;                    }                    </span><span style="color: #0000ff;">echo</span> '>图像中所有颜色反转</option>'<span style="color: #000000;">;                </span>?>            </select><br>               <span style="color: #000000;">php                 </span><span style="color: #0000ff;">echo</span> '<input type="checkbox" name="emb_caption" style="color: #000000;">;                <span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['emb_caption'<span style="color: #000000;">]))                {                    </span><span style="color: #0000ff;">echo</span> ' checked="checked"'<span style="color: #000000;">;                }                </span><span style="color: #0000ff;">echo</span> ' />是否嵌入在图像的标题？'<span style="color: #000000;">;                </span><span style="color: #0000ff;">echo</span> '<br>'<span style="color: #000000;">;                                </span><span style="color: #008000;">//</span><span style="color: #008000;">添加水印选项</span>                <span style="color: #0000ff;">echo</span> '<input type="checkbox" name="emb_logo" style="color: #000000;">;                <span style="color: #0000ff;">if</span>(<span style="color: #0000ff;">isset</span>(<span style="color: #800080;">$_POST</span>['emb_logo'<span style="color: #000000;">]))                {                    </span><span style="color: #0000ff;">echo</span> 'checked="checked"'<span style="color: #0"></span>
</form>
</div>