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php 截取指定的字符串解决方案

WBOY
WBOYOriginal
2016-06-13 12:52:47882browse

php 截取指定的字符串
$a="s=/Toupiao/yulan/pid=117&title=2&selectform=1"有这样一个字符串，我想获取当中pid的值，因为pid值是不定长的，有时会pid=1,pid=12,pid=123......，那我要如何才可以截取pid的值了？

php 截取 字符串
------解决方案--------------------
$a = "s=/Toupiao/yulan/pid=117&title=2&selectform=1";<br />
preg_match('/\bpid=(\d+)/', $a, $r);<br />
echo $r[1];
117
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