Apr 23, 2011 · If by a valid URL you mean one which does not 404, then you could use get_headers() and look for 404 in the first returned array element.
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Jun 17, 2014 · Here is a simple function that will determine if a website exists using PHP and cURL function urlExists($url=NULL) { if($url == NULL) return ...
Jan 16, 2023 · Existence of an URL can be checked by checking the status code in the response header. The status code 200 is Standard response for successful ...
Oct 24, 2014 · Use the native php function Filter Validator if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) { die('Not a valid URL'); }.
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This function parses a URL and returns an associative array containing any of the various components of the URL that are present. The values of the array ...
Jul 31, 2023 · In Summary, To check if a URL contains a certain string in PHP, you can use either the strpos() or preg_match() functions. The strpos() function ...
Jan 18, 2014 · 1st solution ; $url = 'http://www.example.com'; ; $array = get_headers($url); ; $string = $array[0]; ; if(strpos($string,"200")) { ; echo 'url exists ...
Feb 8, 2019 · Method 1: strpos() Function: The strpos() function is used to find the first occurrence of a sub string in a string. If sub string exists then ...
With PHP 7.0 on Ubuntu 17.04 and with the option allow_url_fopen=On, file_exists() returns always false when trying to check a remote file via HTTP. ... $url=" ...
Jan 14, 2012 · Search for "" in r/PHP. Open menu ... How to check if an url exists? More specific: I have a RSS reader that gets it's url by AJAX request. I have ...