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正则表达式难题

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Release: 2016-06-23 14:02:12
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<?php$a="a11ba12b";preg_match_all("/(a[^b]+b){2}/is",$a,$tmp);var_dump($tmp);?>
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得出的结果是

array(2) {  [0]=>  array(1) {    [0]=>    string(8) "a11ba12b"  }  [1]=>  array(1) {    [0]=>    string(4) "a12b"  }}
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现在要问的是,如何操作使得使用{}中括号表示法,但是[1]中是= a11b,而不是 [1]=a12b,


回复讨论(解决方案)

\G?

    $a="a11ba11b";    preg_match_all("/\G(a[^b]+b){2}/i",$a,$tmp);    var_dump($tmp);
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..baoqian
貌似错的

不如指定贪婪模式
preg_match_all("/(a[^b]+b)+/iU",$a,$tmp);

坐等大牛回答。

我就是在研究大括号,哈哈

这样? 你到底要干啥子吗

<?php$a="a11ba12b";preg_match_all("/(a[^b]+b)a[^b]+b/is",$a,$tmp);var_dump($tmp);
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我就是在研究大括号,哈哈
这有什么可研究的?规矩就是规矩
{ 最少/最多数量限定开始 
} 最少/最多数量限定结束 

虽然规则有时不尽合理,但并不会因你而改变

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