<?php
// Easy HashTag converter
 
 
// this is only for error prevent in this ideone.
// url helper is used in Laravel framework.
function url($string)
{
	return $string;
}
 
// convert Hashtag to clickable url.
function convertHashtags($string)
{
	$regex = "/#+([a-zA-Z0-9_]+)/";
	return preg_replace($regex, '<a href="' . url('search-tag/$1') . '">$0</a>', $string);
}
 
echo convertHashtags("#123456 I am #successful hashtag #converter and I am #cool!");

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