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1.1       misho       1: --TEST--
                      2: Test array_diff() function : usage variations - comparing integers, float 
                      3: and string array values
                      4: --FILE--
                      5: <?php
                      6: /* Prototype  : array array_diff(array $arr1, array $arr2 [, array ...])
                      7:  * Description: Returns the entries of $arr1 that have values which are not 
                      8:  * present in any of the others arguments. 
                      9:  * Source code: ext/standard/array.c
                     10:  */
                     11: 
                     12: /*
                     13:  * Test how array_diff compares integers, floats and strings
                     14:  */
                     15: 
                     16: echo "*** Testing array_diff() : usage variations ***\n";
                     17: 
                     18: $arr_int = array(1, 2, 3);
                     19: $arr_float = array(1.00, 2.00, 3.00);
                     20: $arr_int_str = array('1', '2', '3');
                     21: $arr_float_str = array('1.00', '2.00', '3.00');        
                     22: 
                     23: print "-- Compare integers and floats: --\n";
                     24: var_dump(array_diff($arr_int, $arr_float));
                     25: var_dump(array_diff($arr_float, $arr_int));
                     26: 
                     27: 
                     28: print "-- Compare integers and strings containing an integers: --\n";
                     29: var_dump(array_diff($arr_int, $arr_int_str));
                     30: var_dump(array_diff($arr_int_str, $arr_int));
                     31: 
                     32: print "-- Compare integers and strings containing floats: --\n";
                     33: var_dump(array_diff($arr_int, $arr_float_str));
                     34: var_dump(array_diff($arr_float_str, $arr_int));
                     35: 
                     36: print "-- Compare floats and strings containing integers: --\n";
                     37: 
                     38: var_dump(array_diff($arr_float, $arr_int_str));
                     39: var_dump(array_diff($arr_int_str, $arr_float));
                     40: 
                     41: print "-- Compare floats and strings containing floats: --\n";
                     42: var_dump(array_diff($arr_float, $arr_float_str));
                     43: var_dump(array_diff($arr_float_str, $arr_float));
                     44: 
                     45: print "-- Compare strings containing integers and strings containing floats: --\n";
                     46: var_dump(array_diff($arr_int_str, $arr_float_str));
                     47: var_dump(array_diff($arr_float_str, $arr_int_str));
                     48: 
                     49: echo "Done";
                     50: ?>
                     51: --EXPECTF--
                     52: *** Testing array_diff() : usage variations ***
                     53: -- Compare integers and floats: --
                     54: array(0) {
                     55: }
                     56: array(0) {
                     57: }
                     58: -- Compare integers and strings containing an integers: --
                     59: array(0) {
                     60: }
                     61: array(0) {
                     62: }
                     63: -- Compare integers and strings containing floats: --
                     64: array(3) {
                     65:   [0]=>
                     66:   int(1)
                     67:   [1]=>
                     68:   int(2)
                     69:   [2]=>
                     70:   int(3)
                     71: }
                     72: array(3) {
                     73:   [0]=>
                     74:   string(4) "1.00"
                     75:   [1]=>
                     76:   string(4) "2.00"
                     77:   [2]=>
                     78:   string(4) "3.00"
                     79: }
                     80: -- Compare floats and strings containing integers: --
                     81: array(0) {
                     82: }
                     83: array(0) {
                     84: }
                     85: -- Compare floats and strings containing floats: --
                     86: array(3) {
                     87:   [0]=>
                     88:   float(1)
                     89:   [1]=>
                     90:   float(2)
                     91:   [2]=>
                     92:   float(3)
                     93: }
                     94: array(3) {
                     95:   [0]=>
                     96:   string(4) "1.00"
                     97:   [1]=>
                     98:   string(4) "2.00"
                     99:   [2]=>
                    100:   string(4) "3.00"
                    101: }
                    102: -- Compare strings containing integers and strings containing floats: --
                    103: array(3) {
                    104:   [0]=>
                    105:   string(1) "1"
                    106:   [1]=>
                    107:   string(1) "2"
                    108:   [2]=>
                    109:   string(1) "3"
                    110: }
                    111: array(3) {
                    112:   [0]=>
                    113:   string(4) "1.00"
                    114:   [1]=>
                    115:   string(4) "2.00"
                    116:   [2]=>
                    117:   string(4) "3.00"
                    118: }
                    119: Done