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1.1 misho 1: --TEST-- 2: Test array_filter() function : usage variations - anonymous callback functions 3: --FILE-- 4: <?php 5: /* Prototype : array array_filter(array $input [, callback $callback]) 6: * Description: Filters elements from the array via the callback. 7: * Source code: ext/standard/array.c 8: */ 9: 10: /* 11: * Passing different anonymous callback functions with passed by value and reference arguments 12: */ 13: 14: echo "*** Testing array_filter() : usage variations - Anonymous callback functions ***\n"; 15: 16: $input = array(0, 1, -1, 10, 100, 1000, 'Hello', null); 17: 18: // anonymous callback function 19: echo "Anonymous callback function with regular parameter and statement\n"; 20: var_dump( array_filter($input, create_function('$input', 'return ($input > 1);') ) ); 21: 22: // anonymous callback function with reference 23: echo "Anonymous callback function with reference parameter\n"; 24: var_dump( array_filter($input, create_function('&$input', 'return ($input < 1);') ) ); 25: 26: // anonymous callback function with null argument 27: echo "Anonymous callback funciton with null argument\n"; 28: var_dump( array_filter($input, create_function(null, 'return true;') ) ); 29: 30: // anonymous callback function with argument and null statement 31: echo "Anonymous callback function with regular argument and null statement\n"; 32: var_dump( array_filter($input, create_function('$input', null) ) ); 33: 34: echo "Done" 35: ?> 36: --EXPECTF-- 37: *** Testing array_filter() : usage variations - Anonymous callback functions *** 38: Anonymous callback function with regular parameter and statement 39: array(3) { 40: [3]=> 41: int(10) 42: [4]=> 43: int(100) 44: [5]=> 45: int(1000) 46: } 47: Anonymous callback function with reference parameter 48: array(4) { 49: [0]=> 50: int(0) 51: [2]=> 52: int(-1) 53: [6]=> 54: string(5) "Hello" 55: [7]=> 56: NULL 57: } 58: Anonymous callback funciton with null argument 59: array(8) { 60: [0]=> 61: int(0) 62: [1]=> 63: int(1) 64: [2]=> 65: int(-1) 66: [3]=> 67: int(10) 68: [4]=> 69: int(100) 70: [5]=> 71: int(1000) 72: [6]=> 73: string(5) "Hello" 74: [7]=> 75: NULL 76: } 77: Anonymous callback function with regular argument and null statement 78: array(0) { 79: } 80: Done