Ausführliche Einführung zur Lösung des Problems, dass PHP beim Hochladen von Bildern im nicht standardmäßigen Format auf die PJPEG-Methode fehlschlägt

Warning: imagecreatefromjpeg(): ‘/tmp/lalala' is not a valid JPEG file in /path/upload.php on line 1

gd.jpeg_ignore_warning = 1

<?php 
class more_file_upload{
const FILE_PATH=&#39;/uploadfile/&#39;;//默认文件上传的目录，请自行修改
var file_type;
var file_type_array;
var file_type_real_array;
var file_type_string;
var file_name;
var file_size;
var file_tmp_name;
var file_error;
var handledate;
static totalsize=0;
function construct(file_name,file_error,file_size,file_tmp_name,file_type){
this->handledate=date(&#39;m-d-Y&#39;);
if (!empty(file_name)){
this->file_name = file_name;
this->file_error = file_error;
this->file_size = file_size;
this->file_tmp_name = file_tmp_name;
this->file_type = file_type;
this->file_type_array = array(&#39;/&#39;, &#39;image/gif&#39;, &#39;image/jpg&#39;, &#39;image/jpeg&#39;, &#39;image/pjpeg&#39;, &#39;image/png&#39;);
this->file_type_real_array = array(0.1, &#39;jpg&#39;=>74707370, &#39;gif&#39;=>7173, &#39;bmp&#39;=>6677, &#39;png&#39;=>807871);
this->show_execute_message(this->file_error,this->file_name,this->file_type,this->file_size);
}
}
function destruct(){
this->file_name = NULL;
this->file_error = NULL;
this->file_size = NULL;
this->file_tmp_name = NULL;
this->file_type = NULL;
self::totalsize = 0;
}
function show_execute_message(smfileerror,smfilename,smfiletype,smfilesize){
if(smfileerror>0){
switch (smfileerror){
case 1: smfilemessage=&#39;<strong>文件超过服务器的约定大小！</strong>&#39;;break;
case 2: smfilemessage=&#39;<strong>文件超过指定的文件大小！</strong>&#39;;break;
case 3: smfilemessage=&#39;<strong>文件只上传了部分！</strong>&#39;;break;
case 4: echo "this->file_name ".&#39;文件上传失败！<br/>&#39;;break;
}
self::destruct();
}else{
smfiletypeflag = array_search(smfiletype,this->file_type_array);
//进行真实格式验证
if(smfiletypeflag != false){
file = fopen(this->file_tmp_name, "rb");
bin = fread(file, 10);
fclose(file);
strInfo = @unpack("c10chars", bin);
typeCode = intval(strInfo[&#39;chars1&#39;].strInfo[&#39;chars2&#39;]);
smfiletypeflag = array_search(typeCode, this->file_type_real_array);
if(smfiletypeflag == false){ //判断是否是png图片
typeCode = intval(strInfo[&#39;chars2&#39;].strInfo[&#39;chars3&#39;].strInfo[&#39;chars4&#39;]);
smfiletypeflag = array_search(typeCode, this->file_type_real_array);
if(smfiletypeflag == false){ //判断是否是jpg图片
$typeCode = intval(strInfo[&#39;chars7&#39;].strInfo[&#39;chars8&#39;].strInfo[&#39;chars9&#39;].strInfo[&#39;chars10&#39;]);
smfiletypeflag = array_search(typeCode, this->file_type_real_array);
}
}
}
if($smfiletypeflag == false){
$smfilemessage=&#39;<strong>文件类型不对，请核实！</strong>&#39;;
self::destruct();
}else{
$resflag = $this->move_file($this->file_tmp_name,this->file_name);
if (resflag == 1){
$smfilemessage = &#39;文件上传成功！&#39;;
self::totalsize +=intval($smfilesize);
self::destruct();
}else{
$smfilemessage = &#39;<strong>文件上传失败！</strong>&#39;;
self::destruct();
}
}
}
$smfilesizeformat = $this->size_BKM(smfilesize);
echo &#39;<tr>
<td align="left" >&#39;.smfilename.&#39;</td>
<td align="center" >&#39;.smfiletype.&#39;</td>
<td align="center" >&#39;.smfilesizeformat.&#39;</td>
<td align="center" >&#39;.smfilemessage.&#39;</td>
</tr>&#39;;
}
function move_file(mvfiletmp,mvfilename){ //移动文件
mvfilenamearr = explode(&#39;.&#39;,basename(mvfilename));
mvfilenamearr[0] = this->rand_string();
mvfilename = implode(&#39;.&#39;,mvfilenamearr);
if (is_uploaded_file(mvfiletmp)){
uploadfile = self::FILE_PATH."mvfilename";
result = move_uploaded_file(mvfiletmp,uploadfile);
return result;
}
}
function rand_string(){
string = md5(uniqid(rand().microtime()));
return string;
}
function size_BKM(size){ // B/KB/MB单位转换
if(size < 1024)
{
size_BKM = (string)size . " B";
}
elseif(size < (1024 * 1024))
{
size_BKM = number_format((double)(size / 1024), 1) . " KB";
}else
{
size_BKM = number_format((double)(size / (1024*1024)),1)." MB";
}
return size_BKM;
}
}
?>