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1.1 misho 1: --TEST-- 2: Test array_walk() function : usage variations - 'input' argument as diff. associative arrays 3: --FILE-- 4: <?php 5: /* Prototype : bool array_walk(array $input, string $funcname [, mixed $userdata]) 6: * Description: Apply a user function to every member of an array 7: * Source code: ext/standard/array.c 8: */ 9: 10: /* 11: * Passing 'input' argument as an associative array 12: * with Numeric & string keys 13: */ 14: 15: echo "*** Testing array_walk() : 'input' as an associative array ***\n"; 16: 17: // callback functions 18: /* Prototype : for_numeric( int $value, int $key, int $user_data) 19: * Parameters : $value - value from key/value pair of the array 20: * $key - key from key/value pair of the array 21: * $user_data - data to be added to 'value' 22: * Description : Function adds values with keys & user_data 23: */ 24: function for_numeric($value, $key, $user_data) 25: { 26: // dump the input values to see if they are 27: // passed with correct type 28: var_dump($key); 29: var_dump($value); 30: var_dump($user_data); 31: echo "\n"; // new line to separate the output between each element 32: } 33: 34: /* Prototype : for_string( string $value, string $key) 35: * Parameters : $value - values in given input array 36: * $key - keys in given input array 37: * Description : Function appends key to the value 38: */ 39: function for_string($value, $key) 40: { 41: // dump the input values to see if they are 42: // passed with correct type 43: var_dump($key); 44: var_dump($value); 45: echo "\n"; // new line to separate the output between each element 46: } 47: 48: /* Prototype : for_mixed( mixed $value, mixed $key) 49: * Parameters : $value - values in given input array 50: * $key - keys in given input array 51: * Description : Function displays each element of an array with keys 52: */ 53: function for_mixed($value, $key) 54: { 55: // dump the input values to see if they are 56: // passed with correct type 57: var_dump($key); 58: var_dump($value); 59: echo "\n"; // new line to separate the output between each element 60: } 61: 62: // Numeric keys 63: $input = array( 1 => 25, 5 => 12, 0 => -80, -2 => 100, 5 => 30); 64: echo "-- Associative array with numeric keys --\n"; 65: var_dump( array_walk($input, "for_numeric", 10)); 66: 67: // String keys 68: $input = array( "a" => "Apple", 'b' => 'Bananna', "c" => "carrot", 'o' => "Orange"); 69: echo "-- Associative array with string keys --\n"; 70: var_dump( array_walk($input, "for_string")); 71: 72: // binary keys 73: $input = array( b"a" => "Apple", b"b" => "Banana"); 74: echo "-- Associative array with binary keys --\n"; 75: var_dump( array_walk($input, "for_string")); 76: 77: // Mixed keys - numeric/string 78: $input = array( 0 => 1, 1 => 2, "a" => "Apple", "b" => "Banana", 2 =>3); 79: echo "-- Associative array with numeric/string keys --\n"; 80: var_dump( array_walk($input, "for_mixed")); 81: 82: echo "Done" 83: ?> 84: --EXPECTF-- 85: *** Testing array_walk() : 'input' as an associative array *** 86: -- Associative array with numeric keys -- 87: int(1) 88: int(25) 89: int(10) 90: 91: int(5) 92: int(30) 93: int(10) 94: 95: int(0) 96: int(-80) 97: int(10) 98: 99: int(-2) 100: int(100) 101: int(10) 102: 103: bool(true) 104: -- Associative array with string keys -- 105: string(1) "a" 106: string(5) "Apple" 107: 108: string(1) "b" 109: string(7) "Bananna" 110: 111: string(1) "c" 112: string(6) "carrot" 113: 114: string(1) "o" 115: string(6) "Orange" 116: 117: bool(true) 118: -- Associative array with binary keys -- 119: string(1) "a" 120: string(5) "Apple" 121: 122: string(1) "b" 123: string(6) "Banana" 124: 125: bool(true) 126: -- Associative array with numeric/string keys -- 127: int(0) 128: int(1) 129: 130: int(1) 131: int(2) 132: 133: string(1) "a" 134: string(5) "Apple" 135: 136: string(1) "b" 137: string(6) "Banana" 138: 139: int(2) 140: int(3) 141: 142: bool(true) 143: Done