PHP:简单的正则表达式问题

Question

我的一些HTML文件包含如下字符串:

{foreach $any_kind_of_charaters}
Any kind of string including "\n\r" and spaces here
{/foreach}

我想申请PHP's preg_match_all他们,并希望返回一个array像下面打印的好

Array
(
    [0] => {foreach $any_kind_of_charaters}
            Any kind of string including "\n\r" and spaces here
           {/foreach}
    [1] => any_kind_of_charaters
    [2] => Any kind of string including "\n\r" and spaces here
)

这个REGEX:/\{foreach\s+\$(.*)\}\s+(.*)\s+\{\/foreach\}/对我来说还可以,
但是当我在{foreach}{/foreach}标签之间添加新行(\n)时它会失败.

非常感谢您的帮助,谢谢.

使用"S"修改器后的阵列

Array
(
    [0] => {foreach $any_kind_of_charaters}
        Any kind of string including "\n\r" and spaces here
        {/foreach}
    [1] => any_kind_of_charaters}
        Any kind of string including "\n\r" and spaces here
    [2] => 
)

看second key的array包含不必要的数据,和last key的array完全是空的.

Answer 1

s在正则表达式上设置修饰符标志.

http://php.net/manual/en/reference.pcre.pattern.modifiers.php

像这样:/\{foreach\s+\$(.*)\}\s+(.*)\s+\{\/foreach\}/s< - 注意修饰符