Create and simplify links from body of text in PHP - php

Question

I need to extract all links in a body of text in php and make them clickable. The problem is I can't seem to simplify the text of the link in any way.
I tried using preg_replace_callback but I can't seem to get the trimming function working properly:
function trimUrl($url){
$maxLength = 3;
if(strlen($url)>$maxLength){
$urlShort = substr($str,0,$maxLength).'...';
}
else{
$urlShort = $url;
}
return $urlShort;
}
function enableLinks($text){
return preg_replace_callback("!(((f|ht)tp(s)?://)[-a-zA-Zа-яА-Я()0-9#:%_+.~#?&;//=]+)!i", "<a href='$1' target='_blank'>".trimUrl("$1")."</a>", $text);
}
enableLinks("Visit more work at http://www.google.com");
How can I run a second function within the preg_replace_callback that trims the output text?

Answer 1

What if you used a function inside that function. So if the first function evaluates to true then run this next function? And also try using preg_replace_callback in a variable format so its easier to work with

Answer 2

First, you are using substring(). Where have you defined the variable $str? And, if you do this:
$var = preg_replace_callback("!(((f|ht)tp(s)?://)[-a-zA-Zа-яА-Я()0-9#:%_+.~#?&;//=]+)!i", "<a href='$1' target='_blank'>".trimUrl("$1")."</a>", $text);
Than can you use a new function:
return function($var);

Answer 3

Ended up using a more expanded function to achieve this, works on multiple urls with or without "http://":
function trimUrlOutput($url){
$maxLength = 30;
if(strlen($url)>$maxLength){
$urlShort = substr($url,0,$maxLength).'...';
}
else{
$urlShort = $url;
}
return $urlShort;
}
function enableLinks($text){
$text = ereg_replace( "www\.", "http://www.", $text );
$text = ereg_replace( "http://http://www\.", "http://www.", $text );
$text = ereg_replace( "https://http://www\.", "https://www.", $text );
$reg_exUrl = "/(http|https|ftp|ftps)\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/";
if(preg_match_all($reg_exUrl, $text, $url)) {
$matches = array_unique($url[0]);
foreach($matches as $match) {
$linkText = trimUrlOutput($match);
$replacement = "<a href=".$match." target='_blank'>{$linkText}</a>";
$text = str_replace($match,$replacement,$text);
}
return $text;
}
else{
return $text;
}
}
enableLinks("Visit more work at http://www.google.com");
Hope this helps someone.