为什么Content-Type:image/jpeg标头不起作用? [英] Why is Content-Type: image/jpeg header not working?

问题描述

我正在使用GD库调整图像大小.为什么header('Content-Type: image/jpeg');不起作用?

I'm using GD library to resize image. Why is not header('Content-Type: image/jpeg'); working?

它给了我一个错误，如下图所示:

It gave me an error as you can see in pic below:

这是我的GD详细信息:

Here are my GD details:

.

<?php  
header("Content-type: image/jpeg");
if(isset($_GET['image'])){ 
    $image = $_GET['image'];
    list($image_width, $image_height)= getimagesize($image);
    $new_size = ($image_width+$image_height)/($image_width*($image_height/45));
    $new_width = $image_width * $new_size;
    $new_height = $image_height * $new_size;

    $new_image = imagecreatetruecolor($new_width, $new_height);
    $old_image = imagecreatefromjpeg($image);

    imagecopyresized($new_image, $old_image, 0, 0, 0, 0, $new_width, $new_height, $image_width, $image_height);
    imagejpeg($new_image);
}
?>

推荐答案

使用现有脚本/库而不是重新发明轮子总是更好的选择……尝试使用timthumb或类似方法……这样可以节省很多时间和错误无误...

It would always better to use the existing scripts/libraries instead of reinventing the wheel... try using timthumb or similar... that would save a lot of time and error free...

http://www.phpguy.in/simple在php/

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