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怎么把未知长度的字符串从末尾截掉指定的字串呢

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Release： 2016-06-13 11:17:45
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如何把未知长度的字符串从末尾截掉指定的字串呢？
如：字串：沈阳市公安局电话 想截掉尾部的“电话”，如何实现呢？

php字符串截取
------解决方案--------------------
$s='沈阳市公安局电话';
echo preg_replace('/电话$/','',$s);
Related labels：
echo nbsp php replace
source：php.cn
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