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// 匹配http(s)的表达式
$preg = "/^http(s)?:\\/\\/.+/";
示例:
$url = "https://www.baidu.com/";
$preg = "/^http(s)?:\\/\\/.+/";
if(preg_match($preg,$url))
{
echo 'Yes';
}else
{
echo 'No';
}
运行结果:
Yes