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Regular expression to match URL - Php function



Following regular expression (regEx) can be used to replace the urls in a string with the anchor tags with href attribute points to that url.

RegEx:
https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?

// Automatically link URL's inside text.

function matchURL($string){ return(preg_replace('@(https?://([-\w\.]+)+(:\d+)?(/([\w/_\.]*(\?\S+)?)?)?)@', '$1', $string ));
}
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