正则表达式难题
<?php$a="a11ba12b";preg_match_all("/(a[^b]+b){2}/is",$a,$tmp);var_dump($tmp);?>
得出的结果是
array(2) { [0]=> array(1) { [0]=> string(8) "a11ba12b" } [1]=> array(1) { [0]=> string(4) "a12b" }}
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);
..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);
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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