$str1="壹家怡园的网址是https://www.yc58.com你记住了吗";//https支持，大写支持

$str2="https://www.yc58.com壹家怡园,过滤url链接";

functionremoveLinks($str){

if(empty($str))return'';

$str=preg_replace('/http:[/]{2}[a-z]+[.]{1}[a-zd-]+[.]{1}[a-zd]*[/]*[A-Za-zd]*[/]*[A-Za-zd]*/','',$str);

return$str;

}

echoremoveLinks($str).'';

echoremoveLinks($str1).'';

echoremoveLinks($str2).'';