similar_text() to compare product names to a given string - php

Question

I am currently trying to play about with some PHP that will compare an array of words/phrases with a user provided word and then return just the word which has the highest percentage..
My code so far is (for the sake of testing):
<?php
$CRProductName = strtoupper("Product 30");
$XProdNames = array("Product 1","Product 2", "Product 300", "Not a product");
echo "Checking product matches for: ".$CRProductName."<br /><br />";
foreach ($XProdNames as $ProductName) {
similar_text($CRProductName,strtoupper($ProductName), $p);
echo "Percentage:".$p."%<br />";
}
?>
This outputs the following:
Checking product matches for: PRODUCT 30
Percentage:84.2105263158%
Percentage:84.2105263158%
Percentage:95.2380952381%
Percentage:60.8695652174%
Which is great and it works, however I would just like it to return the product name with the highest percentage in the results?
Can anyone advise on a good route for me to take?
I tried adding an IF statement to check the value of $p, but the highest percentage may differ every time.
I converted all to uppercase just to make sure it is marking the similarity by content and not by case.
Thanks,

Answer 1

<?php
$CRProductName = strtoupper("Product 30");
$XProdNames = array("Product 1","Product 2", "Product 300", "Not a product");
echo "Checking product matches for: ".$CRProductName."<br /><br />";
$bestMatch = array('score' => 0, 'name' => 'None');
foreach ($XProdNames as $ProductName) {
$p = 0;
similar_text($CRProductName,strtoupper($ProductName), $p);
echo "Percentage:".$p."%<br />";
if($p > $bestMatch['score'])
{
$bestMatch = array('score' => $p, 'name' => $ProductName);
}
}
print_r($bestMatch);
?>
you could always run simlar_text a few times in each loop and average the results as well if you're getting fluxing results.

Answer 2

It's very simple. Just use an if statement to check for the highest value in the foreach loop. then echo the highest value. Here's your code with the minor change:
<?php
$CRProductName = strtoupper("Product 30");
$XProdNames = array("Product 1","Product 2", "Product 300", "Not a product");
echo "Checking product matches for: ".$CRProductName."<br /><br />";
$pHighest = 0;
foreach ($XProdNames as $ProductName) {
similar_text($CRProductName,strtoupper($ProductName), $p);
if ($p > $pHighest) {
$pHighest = $p;
}
}
echo "Percentage:".$pHighest."%<br />";
?>