php 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,

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

: This article mainly introduces php programming notes. if you are interested in PHP tutorials, please refer to them. Three methods for php to obtain POST data Php image watermarking source code Php + ajax + json is the simplest example. Php Chinese

Php programming notes-three methods for obtaining POST data from small_123 php Php image watermarking source code Php + ajax + json is the simplest example. Php Chinese character to pinyin source code Php traverses the Directory, generates the md5

Three ways to get post data from PHP PHP image plus watermark source code One of the simplest examples of Php+ajax+json PHP Chinese Pinyin Source code PHP iterates through directories, generates MD5 values for each file in the directory, and writes

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

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

fopen () method The simplest way is to use fopen (), to see if the file can be opened, can hit the file of course exists. The fopen () function opens the file or URL. If the open fails, the function returns FALSE. Syntax: fopen