php - 代码点火器中的 "gd-jpeg, libjpeg: recoverable error: Premature end of JPEG file"

Question

我正在使用 CodeIgniter 并尝试创建图像缩略图。我在某些情况下取得了成功，但在某些情况下却失败了。我收到以下错误 -

<< A PHP Error was encountered
Severity: Notice

Message: imagecreatefromjpeg(): gd-jpeg, libjpeg: recoverable error: Premature end of JPEG file

Filename: libraries/Image_lib.php

Line Number: 1155 >>

我在“image_lib”库加载后使用了这段代码。

ini_set('gd.jpeg_ignore_warning', 1);

有什么办法吗？提前致谢!

Answer 1

问题是 error suppression未打开函数 imagecreatefromjpeg

最好的选择是扩展基础库并重载image_create_gd 方法

创建一个新文件./application/libraries/MY_Image_lib.php

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

Class MY_Image_lib extends CI_Image_Lib {

function image_create_gd($path = '', $image_type = '')
{
    if ($path == '')
        $path = $this->full_src_path;

    if ($image_type == '')
        $image_type = $this->image_type;


    switch ($image_type)
    {
        case     1 :
                    if ( ! function_exists('imagecreatefromgif'))
                    {
                        $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_gif_not_supported'));
                        return FALSE;
                    }

                    return @imagecreatefromgif($path);
            break;
        case 2 :
                    if ( ! function_exists('imagecreatefromjpeg'))
                    {
                        $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_jpg_not_supported'));
                        return FALSE;
                    }

                    return @imagecreatefromjpeg($path);
            break;
        case 3 :
                    if ( ! function_exists('imagecreatefrompng'))
                    {
                        $this->set_error(array('imglib_unsupported_imagecreate', 'imglib_png_not_supported'));
                        return FALSE;
                    }

                    return @imagecreatefrompng($path);
            break;

    }

    $this->set_error(array('imglib_unsupported_imagecreate'));
    return FALSE;
}

}