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再问个正则表达式，关于结尾的$

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Release： 2016-06-23 14:04:10
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preg_match_all ("/ar$/i","batr bar car ar asdf",$out);print_r($out);
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这段代码有个$,不是应该以r结尾的单词吗  btar bar car ar 应该全部输出来吧。为什么什么都没有。
难道不是这样理解的吗


回复讨论(解决方案)

是检测这个串是否已ar结尾的。

preg_match_all ("/ar\b/i","batr bar car ar asdf",$out);

$是行尾...

$
断言目标的结尾（或在多行模式下行的结尾，即紧随一换行符之前）

你要的单词结尾2楼给你答案了，单词结尾的断言是\b。

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再问个正则表达式，关于结尾的$
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