php 已弃用：preg_replace()：不推荐使用 /e 修饰符，请改用 preg_replace_callback
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Deprecated: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in
提问by Orlo
I need a little help. Because preg_replaceis deprecated, I have to convert all my preg_replaceto preg_replace_callback...
我需要一点帮助。因为preg_replace已弃用，我必须将所有内容转换my preg_replace为preg_replace_callback...
What I've tried:
我试过的：
Change:
改变：
$template = preg_replace ( "#\[aviable=(.+?)\](.*?)\[/aviable\]#ies", "$this->check_module('\1', '\2')", $template );
To:
到：
$template = preg_replace_callback ( "#\[aviable=(.+?)\](.*?)\[/aviable\]#isu",
return $this->check_module($this['1'], $this['2']);
$template );
Error:
错误：
Parse error: syntax error, unexpected 'return'
回答by rid
The callbackneeds to be a function taking one parameter which is an array of matches. You can pass any kind of callback, including an anonymous function.
该回调必须采取一个参数，该参数是匹配的数组的函数。您可以传递任何类型的回调，包括匿名函数。
$template = preg_replace_callback(
"#\[aviable=(.+?)\](.*?)\[/aviable\]#isu",
function($matches) {
return $this->check_module($matches[1], $matches[2]);
},
$template
);
(PHP >= 5.4.0 required in order to use $thisinside the anonymous function)
（$this在匿名函数中使用需要 PHP >= 5.4.0 ）
