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--TEST-- Test array_unshift() function : usage variations - unexpected values for 'array' argument --FILE-- <?php /* Prototype : int array_unshift(array $array, mixed $var [, mixed ...]) * Description: Pushes elements onto the beginning of the array * Source code: ext/standard/array.c */ /* * Testing the behavior of array_unshift() by giving values * other than array values for $array argument */ echo "*** Testing array_unshift() : unexpected values for \$array argument ***\n"; // Initialise $var argument $var = 12; // get a class class classA { public function __toString() { return "Class A object"; } } // heredoc string $heredoc = <<<EOT hello world EOT; // get a resource variable $fp = fopen(__FILE__, "r"); // get an unset variable $unset_var = 10; unset ($unset_var); // array of unexpected values to be passed to $array argument $arrays = array( // int data /*1*/ 0, 1, 12345, -2345, // float data /*5*/ 10.5, -10.5, 12.3456789000e10, 12.3456789000E-10, .5, // null data /*10*/ NULL, null, // boolean data /*12*/ true, false, TRUE, FALSE, // empty data /*16*/ "", '', // string data /*18*/ "string", 'string', $heredoc, // object data /*21*/ new classA(), // undefined data @$undefined_var, // unset data @$unset_var, // resource variable /*24*/ $fp ); // loop through each element of $arrays to test the functionality of array_unshift() $iterator = 1; foreach($arrays as $array) { echo "\n-- Iteration $iterator --"; /* with default arguments */ // returns element count in the resulting array after arguments are pushed to // beginning of the given array $temp_array = $array; var_dump( array_unshift($temp_array, $var) ); // dump the resulting array var_dump($temp_array); /* with optional arguments */ // returns element count in the resulting array after arguments are pushed to // beginning of the given array $temp_array = $array; var_dump( array_unshift($temp_array, $var, "hello", 'world') ); // dump the resulting array var_dump($temp_array); $iterator++; }; // close the file resource used fclose($fp); echo "Done"; ?> --EXPECTF-- *** Testing array_unshift() : unexpected values for $array argument *** -- Iteration 1 -- Warning: array_unshift() expects parameter 1 to be array, integer given in %s on line %d NULL int(0) Warning: array_unshift() expects parameter 1 to be array, integer given in %s on line %d NULL int(0) -- Iteration 2 -- Warning: array_unshift() expects parameter 1 to be array, integer given in %s on line %d NULL int(1) Warning: array_unshift() expects parameter 1 to be array, integer given in %s on line %d NULL int(1) -- Iteration 3 -- Warning: array_unshift() expects parameter 1 to be array, integer given in %s on line %d NULL int(12345) Warning: array_unshift() expects parameter 1 to be array, integer given in %s on line %d NULL int(12345) -- Iteration 4 -- Warning: array_unshift() expects parameter 1 to be array, integer given in %s on line %d NULL int(-2345) Warning: array_unshift() expects parameter 1 to be array, integer given in %s on line %d NULL int(-2345) -- Iteration 5 -- Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(10.5) Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(10.5) -- Iteration 6 -- Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(-10.5) Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(-10.5) -- Iteration 7 -- Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(123456789000) Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(123456789000) -- Iteration 8 -- Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(1.23456789E-9) Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(1.23456789E-9) -- Iteration 9 -- Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(0.5) Warning: array_unshift() expects parameter 1 to be array, double given in %s on line %d NULL float(0.5) -- Iteration 10 -- Warning: array_unshift() expects parameter 1 to be array, null given in %s on line %d NULL NULL Warning: array_unshift() expects parameter 1 to be array, null given in %s on line %d NULL NULL -- Iteration 11 -- Warning: array_unshift() expects parameter 1 to be array, null given in %s on line %d NULL NULL Warning: array_unshift() expects parameter 1 to be array, null given in %s on line %d NULL NULL -- Iteration 12 -- Warning: array_unshift() expects parameter 1 to be array, boolean given in %s on line %d NULL bool(true) Warning: array_unshift() expects parameter 1 to be array, boolean given in %s on line %d NULL bool(true) -- Iteration 13 -- Warning: array_unshift() expects parameter 1 to be array, boolean given in %s on line %d NULL bool(false) Warning: array_unshift() expects parameter 1 to be array, boolean given in %s on line %d NULL bool(false) -- Iteration 14 -- Warning: array_unshift() expects parameter 1 to be array, boolean given in %s on line %d NULL bool(true) Warning: array_unshift() expects parameter 1 to be array, boolean given in %s on line %d NULL bool(true) -- Iteration 15 -- Warning: array_unshift() expects parameter 1 to be array, boolean given in %s on line %d NULL bool(false) Warning: array_unshift() expects parameter 1 to be array, boolean given in %s on line %d NULL bool(false) -- Iteration 16 -- Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(0) "" Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(0) "" -- Iteration 17 -- Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(0) "" Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(0) "" -- Iteration 18 -- Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(6) "string" Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(6) "string" -- Iteration 19 -- Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(6) "string" Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(6) "string" -- Iteration 20 -- Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(11) "hello world" Warning: array_unshift() expects parameter 1 to be array, string given in %s on line %d NULL string(11) "hello world" -- Iteration 21 -- Warning: array_unshift() expects parameter 1 to be array, object given in %s on line %d NULL object(classA)#1 (0) { } Warning: array_unshift() expects parameter 1 to be array, object given in %s on line %d NULL object(classA)#1 (0) { } -- Iteration 22 -- Warning: array_unshift() expects parameter 1 to be array, null given in %s on line %d NULL NULL Warning: array_unshift() expects parameter 1 to be array, null given in %s on line %d NULL NULL -- Iteration 23 -- Warning: array_unshift() expects parameter 1 to be array, null given in %s on line %d NULL NULL Warning: array_unshift() expects parameter 1 to be array, null given in %s on line %d NULL NULL -- Iteration 24 -- Warning: array_unshift() expects parameter 1 to be array, resource given in %s on line %d NULL resource(%d) of type (stream) Warning: array_unshift() expects parameter 1 to be array, resource given in %s on line %d NULL resource(%d) of type (stream) Done