Compare values of three arrays with user function to compare values, return differences in PHP
Description
The following code shows how to compare values of three arrays with user function to compare values, return differences.
Example
// ww w . j av a 2 s . c o m
<?php
function myfunction($a,$b){
if ($a===$b){
return 0;
}
return ($a>$b)?1:-1;
}
$a1=array("a"=>"red","b"=>"green","c"=>"blue","yellow");
$a2=array("A"=>"red","b"=>"GREEN","yellow","black");
$a3=array("a"=>"green","b"=>"red","Yellow","black");
$result=array_udiff($a1,$a2,$a3,"myfunction");
print_r($result);
?>
The code above generates the following result.
