file_put_contents无法正常工作 [英] file_put_contents not working

问题描述

我尝试使用以下代码通过file_put_contents(转换后的base64字符串为.jpg)将某些内容上传到我的ubuntu服务器:

I try to upload something to my ubuntu server by file_put_contents (a converted base64-string as .jpg) with the following code :

file_put_contents($filename, base64_decode(preg_replace('#^data:image/\w+;base64,#i', '', $data)));

是的，所有参数都正确，我仔细检查了一下.我想知道为什么它不起作用:

And yes, all parameters are right, I double checked them. And I'm wondering why it is not working:

顺便说一句:我尝试将其上传到比该文件夹更高一级的文件夹，该文件夹可以通过url访问(但即使直接将其放在Internet文件夹中，也无法使用).

By the way: I try to upload it to a folder, one level higher then the folder, that is reachable by the url (but even when putting it directly in internet folder, it doesn't work either).

我考虑过错误的权限，但是即使将权限更改为777(我知道这是非常不安全的)，它也不起作用.

I thought about bad permissions, but even when changing permissions to 777 (which I know is very unsafe), it doesn't work.

我在控制台上也没有任何错误.

I also don't get any errors in console.

有人知道为什么它不起作用吗?

Does anybody have an idea why this is not working?

谢谢.

推荐答案

文件夹权限

关于要保存的文件夹(/var/www/html)的权限，您可以更改文件夹的组并更改权限，以便该组可以写为:

Folder Permissions

About the permissions for the folder where you're trying to save (/var/www/html) you can change the group of the folder and change the permissions so that the group can write as:

$ sudo chgrp www-data /var/www/html/
$ sudo chmod 775 /var/www/html

正则表达式

preg_replace('#^data:image/\w+;base64,#i', '', $data)

AFAIK模式必须带有开始和结束斜杠，我认为您已经将/与#混淆了，所以看起来像

AFAIK the pattern must have the start and end slashes, I think you've confused the / with #, so it would look like

/^data:image/\w+;base64,/i

在 image 之后仍然使用斜杠在某些版本中会给您带来一些问题，因此请使用反斜杠

Still that slash after image will give you some problems in some versions, so escape it with a backslash

/^data:image\/\w+;base64,/i

我认为这会做的:)

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