check if url exists

We usually don't often think of checking the validity of a URL address, or don't care about its existence or non-existence: Because there is basically no such application on weekdays. Today, let's see how to use PHP to check whether a URL exists.

How do I check whether a string exists in the page URL? In view of security, if you want to obtain the url of this page, check whether the string "script" exists. If yes, access or exit is prohibited. How to implement it? ------ Solution ------------

How do I check whether a string exists in the page URL? In view of security, if you want to obtain the url of this page, check whether the string "script" exists. If yes, access or exit is prohibited. How to implement it ?, Strstrstrpos,

This article uses three methods to check whether a remote URL exists. Private void page_load (Object sender, system. eventargs E){ String url1 = "http://dotnet.aspx.cc /";String url2 = "http://dotnet.aspx.cc/Images/logo.gif ";Response. Write ("

Three methods are used to check whether a remote URL exists.   Private void page_load (Object sender, system. eventargs E) { String url1 = "http://www.ximenyifan.com /"; String url2 =" Response. Write (" Method 1 :"); Response. Write

Check whether the remote URL exists: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--> Private   Void Page_load ( Object Sender, system. eventargs E){ String Url1 =   "

This article gives you the content is about how to check the existence of the remote file in PHP (pure code), there is a certain reference value, the need for a friend can refer to, I hope you have some help. Check if the remote file exists

PHP to determine whether a Web page exists, the simple way is fopen/file_get_contents. Wait, there are a bunch of ways to do it, but these ways will be the whole page of HTML pull back, to judge a lot of web site data, it will be a bit slow. To be

such as pagination, because some links already have parameters, in addition to the paging information can not discard the original parameters, so to determine whether the link has parameters, and then additional paging information as needed. The

The phpwindow platform simulates the checkdnsrr function to check whether the email actually exists. There is a checkdnsrr function in the php system function. This function is used to check whether a DNS record exists based on a given hostname or