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<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>PHP Intersect Three Arrays Using a Key Comparison Function</title> </head> <body> <pre> <?php // Sample arrays $array1 = array("a"=>"apple", "b"=>"ball", "c"=>"cat", "dog"); $array2 = array("A"=>"apricot", "b"=>"banana"); $array3 = array("a"=>"alligator", "b"=>"balloon"); // Computing the difference $result = array_intersect_ukey($array1, $array2, $array3, "strcasecmp"); print_r($result); ?> </pre> </body> </html>
