PHP:简单的正则表达式问题 [英] PHP : simple regex problem

问题描述

我的一些HTML文件包含如下字符串:

Some of my HTML files contains string like :

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

我想在它们上应用PHP's preg_match_all并想返回一个漂亮的array，如下面的

I want to apply PHP's preg_match_all on them and wanna return a nice array like printed below

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
)

此REGEX:/\{foreach\s+\$(.*)\}\s+(.*)\s+\{\/foreach\}/对我来说还可以，
但是当我在{foreach}{/foreach}标记之间添加新行(\ n)时失败.

This REGEX : /\{foreach\s+\$(.*)\}\s+(.*)\s+\{\/foreach\}/ working okay for me,
but it fails when i add new lines(\n) between {foreach}{/foreach} tags.

非常感谢您的帮助.

使用"S"修饰符后的数组

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] => 
)

查找array的second key中包含不必要的数据，而array的last key完全为空.

Look second key of the array contain unnecessary data, and last key of array is totally empty.

推荐答案

在正则表达式上设置s修饰符标志.

Set the s modifier flag on your regular expression.

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

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

Like this: /\{foreach\s+\$(.*)\}\s+(.*)\s+\{\/foreach\}/s <- note the modifier

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