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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>PHP Diff of Three Arrays Using a Key Comparison Function</title> </head> <body> <pre> <?php // Sample arrays $array1 = array("cat"=>2, "lion"=>5, "zebra"=>8); $array2 = array("BEAR"=>3, "CAT"=>1, "FOX"=>4, "WOLF"=>7); $array3 = array("elephant"=>1, "tiger"=>2, "zebra"=>5); // Computing the difference $result = array_diff_ukey($array1, $array2, $array3, "strcasecmp"); print_r($result); ?> </pre> </body> </html>
