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--TEST-- Test dechex() function : usage variations - different data types as $number arg --INI-- precision=14 --SKIPIF-- <?php if (PHP_INT_SIZE != 8) die("skip this test is for 64bit platform only"); ?> --FILE-- <?php /* Prototype : string dechex ( int $number ) * Description: Returns a string containing a hexadecimal representation of the given number argument. * Source code: ext/standard/math.c */ echo "*** Testing dechex() : usage variations ***\n"; //get an unset variable $unset_var = 10; unset ($unset_var); // heredoc string $heredoc = <<<EOT abc xyz EOT; // get a class class classA { } // get a resource variable $fp = fopen(__FILE__, "r"); $inputs = array( // int data /*1*/ 0, 1, 12345, -2345, 18446744073709551615, // largest decimal 18446744073709551616, // float data /*7*/ 10.5, -10.5, 12.3456789000e10, 12.3456789000E-10, .5, // null data /*12*/ NULL, null, // boolean data /*14*/ true, false, TRUE, FALSE, // empty data /*18*/ "", '', array(), // string data /*21*/ "abcxyz", 'abcxyz', $heredoc, // object data /*24*/ new classA(), // undefined data /*25*/ @$undefined_var, // unset data /*26*/ @$unset_var, // resource variable /*27*/ $fp ); // loop through each element of $inputs to check the behaviour of dechex() $iterator = 1; foreach($inputs as $input) { echo "\n-- Iteration $iterator --\n"; var_dump(dechex($input)); $iterator++; }; fclose($fp); ?> ===Done=== --EXPECTF-- *** Testing dechex() : usage variations *** -- Iteration 1 -- string(1) "0" -- Iteration 2 -- string(1) "1" -- Iteration 3 -- string(4) "3039" -- Iteration 4 -- string(16) "fffffffffffff6d7" -- Iteration 5 -- string(1) "0" -- Iteration 6 -- string(1) "0" -- Iteration 7 -- string(1) "a" -- Iteration 8 -- string(16) "fffffffffffffff6" -- Iteration 9 -- string(10) "1cbe991a08" -- Iteration 10 -- string(1) "0" -- Iteration 11 -- string(1) "0" -- Iteration 12 -- string(1) "0" -- Iteration 13 -- string(1) "0" -- Iteration 14 -- string(1) "1" -- Iteration 15 -- string(1) "0" -- Iteration 16 -- string(1) "1" -- Iteration 17 -- string(1) "0" -- Iteration 18 -- string(1) "0" -- Iteration 19 -- string(1) "0" -- Iteration 20 -- string(1) "0" -- Iteration 21 -- string(1) "0" -- Iteration 22 -- string(1) "0" -- Iteration 23 -- string(1) "0" -- Iteration 24 -- Notice: Object of class classA could not be converted to int in %s on line %d string(1) "1" -- Iteration 25 -- string(1) "0" -- Iteration 26 -- string(1) "0" -- Iteration 27 -- string(%d) "%s" ===Done===