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Compare the keys of two arrays (using a user-defined key comparison function), and return the differences:
SUBMITTED BY:
henry1874w
DATE:
June 23, 2017, 9:22 p.m.
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<?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"=>"blue","b"=>"black","e"=>"blue");
$result=array_diff_ukey($a1,$a2,"myfunction");
print_r($result);
?>
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