PHP GD允许的内存大小用尽 [英] PHP GD Allowed memory size exhausted

问题描述

我正在尝试使用PHP:GD处理JPEG图像目录(大约600+，范围从50k到500k)，以调整图像大小并保存图像，但是在此过程的早期我遇到了一些麻烦.正确处理了3张图像(30K，18K和231K)后，我得到了已用完的16777216字节内存大小 PHP致命错误.

I'm trying to process a directory of JPEG images (roughly 600+, ranging from 50k to 500k) using PHP: GD to resize and save the images but I've hit a bit of a snag quite early in the process. After correctly processing just 3 images (30K, 18K and 231K) I get a Allowed memory size of 16777216 bytes exhausted PHP Fatal error.

我正在遍历图像并调用以下代码:

I'm cycling through the images and calling the code below:

    list($w, $h) = getimagesize($src);

    if ($w > $it->width) {
        $newwidth = $it->width;
        $newheight = round(($newwidth * $h) / $w);
    } elseif ($w > $it->height) {
        $newheight = $it->height;
        $newwidth = round(($newheight * $w) / $h);
    } else {
        $newwidth = $w;
        $newheight = $h;
    }

    // create resize image
    $img = imagecreatetruecolor($newwidth, $newheight);
    $org = imagecreatefromjpeg($src);

    // Resize
    imagecopyresized($img, $org, 0, 0, 0, 0, $newwidth, $newheight, $w, $h);
    imagedestroy($org);

    imagejpeg($img, $dest);

    // Free up memory
    imagedestroy($img);

我尝试使用imagedestroy函数释放内存，但似乎没有任何影响.该脚本只是始终使imagecreatefromjpeg代码行令人窒息.

I've tried to free up memory with the imagedestroy function but it doesn't seem to have any affect. The script just keeps consistently choking at the imagecreatefromjpeg line of code.

我检查了php.ini，并且memory_limit = 16M设置似乎正确保存了.但我不知道为什么内存已满.它不应该将内存释放回垃圾回收器吗?我真的不想增加memory_limit设置.这似乎是一个错误的解决方法，将来可能会导致更多问题.

I checked the php.ini and the memory_limit = 16M setting seems like it's holding correctly. But I can't figure out why the memory is filling up. Shouldn't it be releasing the memory back to the garbage collector? I don't really want to increase the memory_limit setting. This seems like a bad workaround that could potentially lead to more issues in the future.

仅供参考:我正在从命令提示符处运行脚本.它不应该影响功能，但可能会影响您的响应，所以我认为我应该提一下.

FYI: I'm running my script from a command prompt. It shouldn't affect the functionality but might influence your response so I thought I should mention it.

有人可以看到我是否只是在缺少简单的东西，或者这里是否存在设计缺陷?您可能认为这将是一个非常简单的任务.当然一定有可能吧?

Can anyone see if I'm just missing something simple or if there's a design flaw here? You'd think that this would be a pretty straightforward task. Surely this has to be possible, right?

推荐答案

ini_set('memory_limit', '64M');

问题解决了

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