JS、PHP验证URL
$("#url").blur(function(){
var url = $('#url').val();
if(url!=""){
var reg=/(http|ftp|https):\/\/[\w\-_]+(\.[\w\-_]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?/;
if(!reg.test(url)){
alert("请输入正确网址!");
$("#url").val('');
}
}
});
PHP验证
if(preg_match("/\x20*http[s]{0,1}?\:\/\/.*/i",$input['url'])){
echo ‘可以’
}else{
echo ‘不可以’
}