PHP vergleicht die Schlüsselnamen und Schlüsselwerte zweier Arrays und gibt die Differenzfunktion array_diff_uassoc() zurück

<?php
function myfunction($a,$b)
{
if ($a===$b)
{
return 0;
}
return ($a>$b)?1:-1;
}

$a1=array("a"=>"red","b"=>"green","c"=>"blue");
$a2=array("d"=>"red","b"=>"green","e"=>"blue");

$result=array_diff_uassoc($a1,$a2,"myfunction");
print_r($result);
?>

<?php
function myfunction($a,$b)
{
if ($a===$b)
{
return 0;
}
return ($a>$b)?1:-1;
}

$a1=array("a"=>"red","b"=>"green","c"=>"blue");
$a2=array("a"=>"red","b"=>"green","d"=>"blue");
$a3=array("e"=>"yellow","a"=>"red","d"=>"blue");

$result=array_diff_uassoc($a1,$a2,$a3,"myfunction");
print_r($result);
?>

<?php 
function myfunction($v1,$v2) 
{ 
if ($v1===$v2) 
{ 
return 0; 
} 
if ($v1>$v2) 
{ 
return 1; 
} 
else 
{ 
return -1; 
} 
} 
$a1=array(0=>"Dog",1=>"Cat",2=>"Horse"); 
$a2=array(3=>"Dog",1=>"Cat",5=>"Horse"); 
$a3=array(6=>"Bird",0=>"Dog",5=>"Horse"); 
print_r(array_diff_uassoc($a1,$a2,$a3,"myfunction")); 
?>

Array ( [2] => Horse )