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1.1       misho       1: --TEST--
                      2: Test array_map() function : basic functionality
                      3: --FILE--
                      4: <?php
                      5: /* Prototype  : array array_map  ( callback $callback  , array $arr1  [, array $...  ] )
                      6:  * Description: Applies the callback to the elements of the given arrays
                      7:  * Source code: ext/standard/array.c
                      8:  */
                      9: 
                     10: echo "*** Testing array_map() : basic functionality ***\n";
                     11: 
                     12: function multiply($p, $q) {
                     13:   return ($p * $q);
                     14: }
                     15: 
                     16: function square($p) {
                     17:   return ($p * $p);
                     18: }
                     19: 
                     20: function concatenate($a, $b) {
                     21:   return "$a = $b";
                     22: }
                     23: 
                     24: // integer array
                     25: $arr1 = array(1, 2, 3);
                     26: $arr2 = array(4, 5, 6);
                     27: 
                     28: echo "-- With two integer array --\n";
                     29: var_dump( array_map('multiply', $arr1, $arr2) );
                     30: 
                     31: echo "-- With single integer array --\n";
                     32: var_dump( array_map('square', $arr1) );
                     33: 
                     34: // string array
                     35: $arr1 = array("one", "two");
                     36: $arr2 = array("single", "double");
                     37: 
                     38: echo "-- With string array --\n";
                     39: var_dump( array_map('concatenate', $arr1, $arr2) );
                     40: 
                     41: echo "Done";
                     42: ?>
                     43: --EXPECTF--
                     44: *** Testing array_map() : basic functionality ***
                     45: -- With two integer array --
                     46: array(3) {
                     47:   [0]=>
                     48:   int(4)
                     49:   [1]=>
                     50:   int(10)
                     51:   [2]=>
                     52:   int(18)
                     53: }
                     54: -- With single integer array --
                     55: array(3) {
                     56:   [0]=>
                     57:   int(1)
                     58:   [1]=>
                     59:   int(4)
                     60:   [2]=>
                     61:   int(9)
                     62: }
                     63: -- With string array --
                     64: array(2) {
                     65:   [0]=>
                     66:   string(12) "one = single"
                     67:   [1]=>
                     68:   string(12) "two = double"
                     69: }
                     70: Done