图片上传表单适用于某些人，但不适用于其他人？

Question

我有一个很好用的图片上传表单！对我来说......似乎几乎每个人都会有错误！这是怎么回事？ （！我知道我的节目是马虎，我不是在寻找的批评，只是一个权宜之计请帮助。）

形式：

<form enctype="multipart/form-data" action="imgupload.php" method="POST"> 
Image upload: 
<input name="uploadedfile" type="file" /> 
<input type="submit" value="Upload" /> 
</form> 

表单处理程序：

<?php 

if (($_FILES["uploadedfile"]["type"] == "image/jpeg") 
&& ($_FILES["uploadedfile"]["size"] < 4000000)) 
{ 


    // Where the file is going to be placed 
    $target_path = "/images/"; 


    /* Add the original filename to our target path. 
    Result is "images/filename.extension" */ 

//////////RENAME FILE///////////// 


$filetype = pathinfo($_FILES['uploadedfile']['name'], PATHINFO_EXTENSION); 
$oldtitle = $_FILES["uploadedfile"]["name"]; 
$take_file_extension = substr($oldtitle, 0, strrpos($oldtitle, '.')); 
$title = "jeep_".$take_file_extension.".".$filetype; 


    $target_path = $target_path . $title; 


if(move_uploaded_file($_FILES['uploadedfile']['tmp_name'], $target_path)) { 

    echo "The picture ". basename($_FILES['uploadedfile']['name']). 
    " has been uploaded<br><br>----------------<br><br>"; 

    echo "Upload: " . $_FILES["uploadedfile"]["name"] . "<br>"; 
    echo "Size: " . ($_FILES["uploadedfile"]["size"]/1024) . " Kb<br>"; 

    } 
} 



else 
{ 
    echo "There is a file size limit of 1MB. Only JPG's can be uploaded!"; 
} 
?> 

Works的我每次都会得到“有1MB的文件大小限制，只有JPG可以上传！”错误。

Answer 1

即使您的代码设置为接受图像可达4MB，你必须通过编辑几个php.ini中设置的值，告诉PHP允许这种尺寸的图像：

• upload_max_filesize

• post_max_size

，为什么你只能上传.jpg图像的原因是因为您的条件被限制为JPG格式：

if (($_FILES["uploadedfile"]["type"] == "image/jpeg") 

尝试开关：

switch ($_FILES["uploadedfile"]["type"]) { 

    case 'image/jpeg': 
    case 'image/png': 
     break; 

    default: 
     throw new Exception('Invalid image type'); 
} 

Answer 2

我想知道如果它是你在php.ini的max_execution_time。尝试更改上述30

http://www.php.net/manual/en/info.configuration.php#ini.max-execution-time

慢（低带宽）的连接可能需要更长的时间来上传使其报错了较大的图像，您的连接可能会更快。