ホームページ > バックエンド開発 > PHPチュートリアル > PHP_PHPチュートリアルで画像にウォーターマークを追加する具体的な方法を説明します。

PHP_PHPチュートリアルで画像にウォーターマークを追加する具体的な方法を説明します。

WBOY
リリース: 2016-07-15 13:29:09
オリジナル
952 人が閲覧しました

ウェブサイトを構築するとき、ウェブサイトにアップロードした写真に透かしを追加する必要が生じることがあります。透かしを 1 つずつ手動で追加するのは非常に面倒で非現実的です。そこで、今日は、PHP で画像に透かしを追加する具体的な方法を受け入れ、手順を簡略化します。

  • 画像にウォーターマークを追加するための具体的なコードは次のとおりです:

    <ol class="dp-xml">
    <li class="alt">
    <span><strong><font color="#006699"><span class="tag"><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN>   </SPAN></SPAN><LI class=""><SPAN>/******************************************************************************   </SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN>参数说明:   </SPAN><LI class=alt><SPAN>$max_file_size  : 上传文件大小限制, 单位BYTE   </SPAN><LI class=""><SPAN>$destination_folder : 上传文件路径   </SPAN><LI class=alt><SPAN>$watermark   : 是否附加水印(1为加水印,其他为不加水印);   </SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>使用说明:   </SPAN><LI class=""><SPAN>1. 将PHP.INI文件里面的"</SPAN><SPAN class=attribute><FONT color=#ff0000>extension</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>php_gd2</FONT></SPAN><SPAN>.dll"一行前面的;号去掉,因为我们要用到GD库;   </SPAN></SPAN><LI class=alt><SPAN>2. 将</SPAN><SPAN class=attribute><FONT color=#ff0000>extension_dir</FONT></SPAN><SPAN> =改为你的php_gd2.dll所在目录;   </SPAN></SPAN><LI class=""><SPAN>******************************************************************************/   </SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN>//上传文件类型列表   </SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>uptypes</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>array</FONT></SPAN><SPAN>(   </SPAN></SPAN><LI class=""><SPAN>    'image/jpg',   </SPAN><LI class=alt><SPAN>    'image/jpeg',   </SPAN><LI class=""><SPAN>    'image/png',   </SPAN><LI class=alt><SPAN>    'image/pjpeg',   </SPAN><LI class=""><SPAN>    'image/gif',   </SPAN><LI class=alt><SPAN>    'image/bmp',   </SPAN><LI class=""><SPAN>    'image/x-png'   </SPAN><LI class=alt><SPAN>);   </SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>max_file_size</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>2000000</FONT></SPAN><SPAN>;     //上传文件大小限制, 单位BYTE   </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>destination_folder</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"uploadimg/"</FONT></SPAN><SPAN>; //上传文件路径   </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>watermark</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>1</FONT></SPAN><SPAN>;      //是否附加水印(1为加水印,其他为不加水印);   </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>watertype</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>1</FONT></SPAN><SPAN>;      //水印类型(1为文字,2为图片)   </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>waterposition</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>1</FONT></SPAN><SPAN>;     //水印位置(1为左下角,2为右下角,3为左上角,4为右上角,5为居中);   </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>waterstring</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"http://www.xplore.cn/"</FONT></SPAN><SPAN>;  //水印字符串   </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>waterimg</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"xplore.gif"</FONT></SPAN><SPAN>;    //水印图片   </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>imgpreview</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>1</FONT></SPAN><SPAN>;      //是否生成预览图(1为生成,其他为不生成);   </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute><FONT color=#ff0000>imgpreviewsize</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>1</FONT></SPAN><SPAN>/2;    //缩略图比例   </SPAN></SPAN><LI class=""><SPAN></SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></span></font></strong></span><span>   </span>
    </li>
    <li class="alt">
    <span></span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>html</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class="">
    <span></span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>head</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class="alt">
    <span></span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>title</SPAN><SPAN class=tag>></span></font></strong><span>ZwelL图片上传程序</span><strong><font color="#006699"><span class="tag"></</SPAN><SPAN class=tag-name>title</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class="">
    <span></span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>style</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>type</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"text/css"</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span></font></strong><span>   </span>
    </li>
    <li class="alt">
    <span><!--   </SPAN><LI class=""><SPAN>body   </SPAN><LI class=alt><SPAN>{   </SPAN><LI class=""><SPAN>     font-size: 9pt;   </SPAN><LI class=alt><SPAN>}   </SPAN><LI class=""><SPAN>input   </SPAN><LI class=alt><SPAN>{   </SPAN><LI class=""><SPAN>     background-color: #66CCFF;   </SPAN><LI class=alt><SPAN>     border: 1px inset #CCCCCC;   </SPAN><LI class=""><SPAN>}   </SPAN><LI class=alt><SPAN>--</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span><span>   </span>
    </li>
    <li class="">
    <span></span><strong><font color="#006699"><span class="tag"></</SPAN><SPAN class=tag-name>style</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class="alt">
    <span></span><strong><font color="#006699"><span class="tag"></</SPAN><SPAN class=tag-name>head</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class=""><span> </span></li>
    <li class="alt">
    <span></span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>body</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class="">
    <span></span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>form</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>enctype</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"multipart/form-data"</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>method</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"post"</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>name</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"upform"</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span></font></strong><span>   </span>
    </li>
    <li class="alt"><span>  上传文件:   </span></li>
    <li class="">
    <span>  </span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>input</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>name</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"upfile"</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>type</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"file"</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span></font></strong><span>   </span>
    </li>
    <li class="alt">
    <span>  </span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>input</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>type</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"submit"</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>value</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>"上传"</FONT></SPAN><STRONG><FONT color=#006699><SPAN class=tag>></span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class="">
    <span>  允许上传的文件类型为:</span><span class="tag"><strong><font color="#006699"><?</FONT></STRONG></SPAN><SPAN>=implode(', ',$uptypes)</SPAN><SPAN class=tag><STRONG><FONT color=#006699>?></font></strong></span><span>   </span>
    </li>
    <li class="alt">
    <span></span><strong><font color="#006699"><span class="tag"></</SPAN><SPAN class=tag-name>form</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class=""><span> </span></li>
    <li class="alt">
    <span></span><strong><font color="#006699"><span class="tag"><?</SPAN><SPAN class=tag-name>php</SPAN></FONT></STRONG><SPAN>   </SPAN></SPAN><LI class=""><SPAN>if ($_SERVER['REQUEST_METHOD'] == 'POST')   </SPAN><LI class=alt><SPAN>{   </SPAN><LI class=""><SPAN>    if (!is_uploaded_file($_FILES["upfile"][tmp_name]))   </SPAN><LI class=alt><SPAN>    //是否存在文件   </SPAN><LI class=""><SPAN>    {   </SPAN><LI class=alt><SPAN>         echo "图片不存在!";   </SPAN><LI class=""><SPAN>         exit;   </SPAN><LI class=alt><SPAN>    }   </SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>    $</SPAN><SPAN class=attribute><FONT color=#ff0000>file</FONT></SPAN><SPAN> = $_FILES["upfile"];   </SPAN></SPAN><LI class=""><SPAN>    if($max_file_size </SPAN><SPAN class=tag><STRONG><FONT color=#006699><</FONT></STRONG></SPAN><SPAN> $file["size"])   </SPAN></SPAN><LI class=alt><SPAN>    //检查文件大小   </SPAN><LI class=""><SPAN>    {   </SPAN><LI class=alt><SPAN>        echo "文件太大!";   </SPAN><LI class=""><SPAN>        exit;   </SPAN><LI class=alt><SPAN>    }   </SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>    if(!in_array($file["type"], $uptypes))   </SPAN><LI class=""><SPAN>    //检查文件类型   </SPAN><LI class=alt><SPAN>    {   </SPAN><LI class=""><SPAN>        echo "文件类型不符!".$file["type"];   </SPAN><LI class=alt><SPAN>        exit;   </SPAN><LI class=""><SPAN>    }   </SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN>    if(!file_exists($destination_folder))   </SPAN><LI class=alt><SPAN>    {   </SPAN><LI class=""><SPAN>        mkdir($destination_folder);   </SPAN><LI class=alt><SPAN>    }   </SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>    $</SPAN><SPAN class=attribute><FONT color=#ff0000>filename</FONT></SPAN><SPAN>=$file["tmp_name"];   </SPAN></SPAN><LI class=""><SPAN>    $</SPAN><SPAN class=attribute><FONT color=#ff0000>image_size</FONT></SPAN><SPAN> = </SPAN><SPAN class=attribute-value><FONT color=#0000ff>getimagesize</FONT></SPAN><SPAN>($filename);   </SPAN></SPAN><LI class=alt><SPAN>    $</SPAN><SPAN class=attribute><FONT color=#ff0000>pinfo</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>pathinfo</FONT></SPAN><SPAN>($file["name"]);   </SPAN></SPAN><LI class=""><SPAN>    $</SPAN><SPAN class=attribute><FONT color=#ff0000>ftype</FONT></SPAN><SPAN>=$pinfo['extension'];   </SPAN></SPAN><LI class=alt><SPAN>    $</SPAN><SPAN class=attribute><FONT color=#ff0000>destination</FONT></SPAN><SPAN> = $destination_folder.time().".".$ftype;   </SPAN></SPAN><LI class=""><SPAN>    if (file_exists($destination) && $overwrite != true)   </SPAN><LI class=alt><SPAN>    {   </SPAN><LI class=""><SPAN>        echo "同名文件已经存在了";   </SPAN><LI class=alt><SPAN>        exit;   </SPAN><LI class=""><SPAN>    }   </SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN>    if(!move_uploaded_file ($filename, $destination))   </SPAN><LI class=alt><SPAN>    {   </SPAN><LI class=""><SPAN>        echo "移动文件出错";   </SPAN><LI class=alt><SPAN>        exit;   </SPAN><LI class=""><SPAN>    }   </SPAN><LI class=alt><SPAN> </SPAN><LI class=""><SPAN>    $</SPAN><SPAN class=attribute><FONT color=#ff0000>pinfo</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>pathinfo</FONT></SPAN><SPAN>($destination);   </SPAN></SPAN><LI class=alt><SPAN>    $</SPAN><SPAN class=attribute><FONT color=#ff0000>fname</FONT></SPAN><SPAN>=$pinfo[basename];   </SPAN></SPAN><LI class=""><SPAN>    echo " </SPAN><STRONG><FONT color=#006699><SPAN class=tag><</SPAN><SPAN class=tag-name>font</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>color</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>red</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span></font></strong><span>已经成功上传</span><strong><font color="#006699"><span class="tag"></</SPAN><SPAN class=tag-name>font</SPAN><SPAN class=tag>></span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span></font></strong><span>文件名:  </span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>font</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>color</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>blue</FONT></SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span></font></strong><span>".$destination_folder.$fname."</span><strong><font color="#006699"><span class="tag"></</SPAN><SPAN class=tag-name>font</SPAN><SPAN class=tag>></span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span></font></strong><span>";   </span>
    </li>
    <li class="alt"><span>    echo " 宽度:".$image_size[0];   </span></li>
    <li class=""><span>    echo " 长度:".$image_size[1];   </span></li>
    <li class="alt">
    <span>    echo "</span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span></font></strong><span> 大小:".$file["size"]." bytes";   </span>
    </li>
    <li class=""><span> </span></li>
    <li class="alt">
    <span>    if($</span><span class="attribute"><font color="#ff0000">watermark</font></span><span>==1)   </span>
    </li>
    <li class=""><span>    {   </span></li>
    <li class="alt">
    <span>        $</span><span class="attribute"><font color="#ff0000">iinfo</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">getimagesize</font></span><span>($destination,$iinfo);   </span>
    </li>
    <li class="">
    <span>        $</span><span class="attribute"><font color="#ff0000">nimage</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">imagecreatetruecolor</font></span><span>($image_size[0],$image_size[1]);   </span>
    </li>
    <li class="alt">
    <span>        $</span><span class="attribute"><font color="#ff0000">white</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">imagecolorallocate</font></span><span>($nimage,255,255,255);   </span>
    </li>
    <li class="">
    <span>        $</span><span class="attribute"><font color="#ff0000">black</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">imagecolorallocate</font></span><span>($nimage,0,0,0);   </span>
    </li>
    <li class="alt">
    <span>        $</span><span class="attribute"><font color="#ff0000">red</font></span><span>=</span><span class="attribute-value"><font color="#0000ff">imagecolorallocate</font></span><span>($nimage,255,0,0);   </span>
    </li>
    <li class=""><span>        imagefill($nimage,0,0,$white);   </span></li>
    <li class="alt"><span>        switch ($iinfo[2])   </span></li>
    <li class=""><span>        {   </span></li>
    <li class="alt"><span>            case 1:   </span></li>
    <li class="">
    <span>            $</span><span class="attribute"><font color="#ff0000">simage</font></span><span> =</span><span class="attribute-value"><font color="#0000ff">imagecreatefromgif</font></span><span>($destination);   </span>
    </li>
    <li class="alt"><span>            break;   </span></li>
    <li class=""><span>            case 2:   </span></li>
    <li class="alt">
    <span>            $</span><span class="attribute"><font color="#ff0000">simage</font></span><span> =</span><span class="attribute-value"><font color="#0000ff">imagecreatefromjpeg</font></span><span>($destination);   </span>
    </li>
    <li class=""><span>            break;   </span></li>
    <li class="alt"><span>            case 3:   </span></li>
    <li class="">
    <span>            $</span><span class="attribute"><font color="#ff0000">simage</font></span><span> =</span><span class="attribute-value"><font color="#0000ff">imagecreatefrompng</font></span><span>($destination);   </span>
    </li>
    <li class="alt"><span>            break;   </span></li>
    <li class=""><span>            case 6:   </span></li>
    <li class="alt">
    <span>            $</span><span class="attribute"><font color="#ff0000">simage</font></span><span> =</span><span class="attribute-value"><font color="#0000ff">imagecreatefromwbmp</font></span><span>($destination);   </span>
    </li>
    <li class=""><span>            break;   </span></li>
    <li class="alt"><span>            default:   </span></li>
    <li class=""><span>            die("不支持的文件类型";   </span></li>
    <li class="alt"><span>            exit;   </span></li>
    <li class=""><span>        }   </span></li>
    <li class="alt"><span> </span></li>
    <li class=""><span>        imagecopy($nimage,$simage,0,0,0,0,$image_size[0],$image_size[1]);   </span></li>
    <li class="alt"><span>        imagefilledrectangle($nimage,1,$image_size[1]-15,80,$image_size[1],$white);   </span></li>
    <li class=""><span> </span></li>
    <li class="alt"><span>        switch($watertype)   </span></li>
    <li class=""><span>        {   </span></li>
    <li class="alt"><span>            case 1:   //加水印字符串   </span></li>
    <li class=""><span>            imagestring($nimage,2,3,$image_size[1]-15,$waterstring,$black);   </span></li>
    <li class="alt"><span>            break;   </span></li>
    <li class=""><span>            case 2:   //加水印图片   </span></li>
    <li class="alt">
    <span>            $</span><span class="attribute"><font color="#ff0000">simage1</font></span><span> =</span><span class="attribute-value"><font color="#0000ff">imagecreatefromgif</font></span><span>("xplore.gif";   </span>
    </li>
    <li class=""><span>            imagecopy($nimage,$simage1,0,0,0,0,85,15);   </span></li>
    <li class="alt"><span>            imagedestroy($simage1);   </span></li>
    <li class=""><span>            break;   </span></li>
    <li class="alt"><span>        }   </span></li>
    <li class=""><span> </span></li>
    <li class="alt"><span>        switch ($iinfo[2])   </span></li>
    <li class=""><span>        {   </span></li>
    <li class="alt"><span>            case 1:   </span></li>
    <li class=""><span>            //imagegif($nimage, $destination);   </span></li>
    <li class="alt"><span>            imagejpeg($nimage, $destination);   </span></li>
    <li class=""><span>            break;   </span></li>
    <li class="alt"><span>            case 2:   </span></li>
    <li class=""><span>            imagejpeg($nimage, $destination);   </span></li>
    <li class="alt"><span>            break;   </span></li>
    <li class=""><span>            case 3:   </span></li>
    <li class="alt"><span>            imagepng($nimage, $destination);   </span></li>
    <li class=""><span>            break;   </span></li>
    <li class="alt"><span>            case 6:   </span></li>
    <li class=""><span>            imagewbmp($nimage, $destination);   </span></li>
    <li class="alt"><span>            //imagejpeg($nimage, $destination);   </span></li>
    <li class=""><span>            break;   </span></li>
    <li class="alt"><span>        }   </span></li>
    <li class=""><span> </span></li>
    <li class="alt"><span>        //覆盖原上传文件   </span></li>
    <li class=""><span>        imagedestroy($nimage);   </span></li>
    <li class="alt"><span>        imagedestroy($simage);   </span></li>
    <li class=""><span>    }   </span></li>
    <li class="alt"><span> </span></li>
    <li class="">
    <span>    if($</span><span class="attribute"><font color="#ff0000">imgpreview</font></span><span>==1)   </span>
    </li>
    <li class="alt"><span>    {   </span></li>
    <li class="">
    <span>    echo "</span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span></font></strong><span>图片预览:</span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span></font></strong><span>";   </span>
    </li>
    <li class="alt">
    <span>    echo "</span><strong><font color="#006699"><span class="tag"><</SPAN><SPAN class=tag-name>img</SPAN></FONT></STRONG><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>src</FONT></SPAN><SPAN>="".$destination."" </SPAN><SPAN class=attribute><FONT color=#ff0000>width</FONT></SPAN><SPAN>=</SPAN><SPAN class=attribute-value><FONT color=#0000ff>".($image_size[0]*$imgpreviewsize)."</FONT></SPAN><SPAN> </SPAN><SPAN class=attribute><FONT color=#ff0000>height</FONT></SPAN><SPAN>=".($image_size[1]*$imgpreviewsize);   </SPAN></SPAN><LI class=""><SPAN>    echo " </SPAN><SPAN class=attribute><FONT color=#ff0000>alt</FONT></SPAN><SPAN>="图片预览:r文件名:".$destination."r上传时间:"</SPAN><SPAN class=tag><STRONG><FONT color=#006699>></span></font></strong><span>";   </span>
    </li>
    <li class="alt"><span>    }   </span></li>
    <li class=""><span>}   </span></li>
    <li class="alt">
    <span></span><span class="tag"><strong><font color="#006699">?></font></strong></span><span>   </span>
    </li>
    <li class="">
    <span></span><strong><font color="#006699"><span class="tag"></</SPAN><SPAN class=tag-name>body</SPAN><SPAN class=tag>></span></font></strong><span>   </span>
    </li>
    <li class="alt">
    <span></span><strong><font color="#006699"><span class="tag"></</SPAN><SPAN class=tag-name>html</SPAN><SPAN class=tag>></span></font></strong><span>  </span>
    </li>
    </ol>
    ログイン後にコピー

    上記は、PHPで画像にウォーターマークを追加するための具体的なコードです。私たちがもう一度必要とする友人の役に立てば幸いです。


    www.bkjia.com本当http://www.bkjia.com/PHPjc/446388.html技術記事 Web サイトを構築するとき、Web サイトにアップロードする画像に透かしを追加する必要が生じることがあります。透かしを 1 つずつ手動で追加するのは非常に面倒で非現実的です。それで…
ソース:php.cn
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