1--TEST-- 2basic array_flip test 3--FILE-- 4<?php 5$trans = array("a" => 1, 6 "b" => 1, 7 "c" => 2, 8 "z" => 0, 9 "d" => TRUE, 10 "E" => FALSE, 11 "F" => NULL, 12 0 => "G", 13 1 => "h", 14 2 => "i"); 15$trans = array_flip($trans); 16var_dump($trans); 17?> 18--EXPECTF-- 19Warning: array_flip(): Can only flip string and integer values, entry skipped in %s on line %d 20 21Warning: array_flip(): Can only flip string and integer values, entry skipped in %s on line %d 22 23Warning: array_flip(): Can only flip string and integer values, entry skipped in %s on line %d 24array(6) { 25 [1]=> 26 string(1) "b" 27 [2]=> 28 string(1) "c" 29 [0]=> 30 string(1) "z" 31 ["G"]=> 32 int(0) 33 ["h"]=> 34 int(1) 35 ["i"]=> 36 int(2) 37} 38