You need to iterate through the arrays manually. Something like this:

$s1="grey tiles 100 X 200 kitchen flooring";
$s2="grey tiles 200 X 600 kitchen flooring";
$sa1=explode(" ",$s1);
$sa2=explode(" ",$s2);
if(count($sa1) < count($sa2)) {
	$difference = compare_arrays($sa2,$sa1);
} else {
	$difference = compare_arrays($sa1,$sa2);
}
echo "The Difference =<br>".$difference;

function compare_arrays(&$larger, &$smaller) {
	$n = count($smaller);
	$diff = "";
	for($i = 0; $i < $n; $i++) {
		if($larger[$i] != $smaller[$i]) {
			$diff .= $larger[$i]." vs ".$smaller[$i]."<br>";
		}
	}
	$n = count($larger);
	while($i < $n) {
		if($larger[$i] != $smaller[$i]) {
			$diff .= $larger[$i]." vs ".$smaller[$i]."<br>";
		}
		$i++;
	}
	return $diff;
}

Hello there!

For the task you have mentioned I would suggest looking into using regular expressions, below are some useful links to look at.

PREG functions in PHP (in particular hit up preg_match)
http://www.php.net/m...en/ref.pcre.php

A cheat sheet for regular expressions
http://www.cheatogra...ar-expressions/