div的id规则如下
我要取id的以num_开头_off为结尾的div
<div id="num_sfew151245_off">
<div id="num_rewr5464511_off">
<div id="num_dvivfd15_off">
我这样写会报错误
$reg = "/<div id=\"num_.*?_off\".*?>.*?<\/div>/ism";
div的id规则如下
我要取id的以num_开头_off为结尾的div
<div id="num_sfew151245_off">
<div id="num_rewr5464511_off">
<div id="num_dvivfd15_off">
我这样写会报错误
$reg = "/<div id=\"num_.*?_off\".*?>.*?<\/div>/ism";
$reg = "/<div id=\"num_(.*?)_off\".*?>.*?<\/div>/ism";