Php checks whether a url exists. php checks whether a url exists. _ PHP Tutorial-php Tutorial

Php checks whether a url exists. php checks whether a url exists. Php checks whether a url exists. php checks whether a url exists. this example describes how php checks whether a url exists. Share it with you for your reference. The details are as follows: Copy the code such as php to check whether the url exists. php checks whether the url exists.

This example describes how to check whether a url exists in php. Share it with you for your reference. The details are as follows:

The code is as follows: function url_exists ($ url ){
$ Hdrs = @ get_headers ($ url );
Return is_array ($ hdrs )? Preg_match ('/^ HTTP \/\ d + \\. \ d + \ s + 2 \ d \ s +. * $/', $ hdrs [0]): false;
}

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Examples in this article describes how php detects the existence of a url. Share it with you for your reference. The code is as follows...