How to apply similar_text to array_uintersect?

This question relates to Francois Deschenes's answer to one of my previous qu开发者_如何转开发estions.

I am unsure how to apply my text similarity check function to the array_uintersect function.

Here is my function (Open for ideas on improvement):

function checkSimilar($str1, $str2){
    similar_text($str1, $str2, $percent);
    if($percent > 75){ 
        return $str2; 
    }
    else{ 
        return null;
    }
}

Well this might be silly what I am saying, I don't know, but I don't understand why you have an array with such keys (values, as shown in your other post). Not really sure what you are trying to do, I just made a guess that you need only one array with maybe 2 dimensions (just a guess, not sure):

<?php

 $song[]=array('title'=>'boing', 'singer'=>'john smith', 'year'=>'1949');
 $song[]=array('title'=>'Don\'t Trust me', 'singer'=>'3oh!3', 'year'=>'1929');
 $song[]=array('title'=>'You Belong with me', 'singer'=>'Taylor Swift', 'year'=>'1981');
 $song[]=array('title'=>'You Belong to earth', 'singer'=>'Taylor Swift', 'year'=>'1991');
 $song[]=array('title'=>'You Do  Belong Everywhere', 'singer'=>'Taylor Swift', 'year'=>'1971');
 $song[]=array('title'=>'Fire Burning', 'singer'=>'Sean Kingston', 'year'=>'2010');
 $song[]=array('title'=>'Love Your Enemy', 'singer'=>'Green Day', 'year'=>'1997');
 $song[]=array('title'=>'Gone', 'singer'=>'Kelly Clarkson', 'year'=>'1956');
 $song[]=array('title'=>'Know Your Enemy', 'singer'=>'Green Day', 'year'=>'1997');
 $song[]=array('title'=>'Gone long away', 'singer'=>'Kelly Clarkson', 'year'=>'1976');

 $find='belong me';
 $accepted=15; 
 $tmp=array();

 foreach($song as  $key => $value)
 { 
     similar_text(strtoupper($value['title']),  strtoupper($find), $p);
     if($p>=$accepted)
     $tmp[$p][] = 'title: '.$value['title'].' | rate: '.round($p,2).'%<br>'; 
 }
 krsort($tmp);

  echo 'THIS IS YOUR SEARCH RESULT FOR \'',$find,'\':<br>';
  echo '_____________________________________________________<br>';
  foreach($tmp as $key => $percentage)
    foreach($percentage as $value)
        echo $value ;

?>