- preg_match: documentation ( source)
- preg_match_all: documentation ( source)
- str_replace: documentation ( source)
<?php
$reg_exUrl = "/((http|https)\:\/\/|(www)\.)[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/";
$text = 'demo www.google.bg';
preg_match_all($reg_exUrl, $text, $matches);
$usedPatterns = array();
foreach($matches[0] as $pattern){
if(!array_key_exists($pattern, $usedPatterns)){
$usedPatterns[$pattern]=true;
if(preg_match('%https://%',$pattern)) {
$start = "https://";
}elseif(preg_match('%http://%',$pattern)){
$start = "http://";
}else {
$start = "http://";
}
$text = str_replace ($pattern, "<a href='{$start}{$pattern}' target='_blank'>{$pattern}</a> ", $text);
}
}
echo $text;