提取字符串中数字
现在有
$z="note1"
怎么用正则取出其中的1
让$z="1"
此时$z是str
怎么把它变成数字类型呢
------解决方案--------------------
$z="note1";
preg_match('/([0-9]+)/', $z,$marray);
$z=$marray[1];
$z=intval($z);//多余的,php是弱类型
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