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1.1       misho       1: --TEST--
                      2: Test array_map() function : usage variations - array with references
                      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: /*
                     11:  * Test array_map() by passing array having reference values for $arr1 argument
                     12:  */
                     13: 
                     14: echo "*** Testing array_map() : array with references for 'arr1' argument ***\n";
                     15: 
                     16: function callback1($a)
                     17: {
                     18:   return ($a);
                     19: }
                     20: 
                     21: function callback_cat($a, $b)
                     22: {
                     23:   return ($a . $b);
                     24: }
                     25: 
                     26: // reference variables
                     27: $value1 = 10;
                     28: $value2 = "hello";
                     29: $value3 = 0;
                     30: $value4 = &$value2;
                     31: 
                     32: // array containing reference variables
                     33: $arr1 = array(
                     34:   0 => 0,
                     35:   1 => &$value4,
                     36:   2 => &$value2,
                     37:   3 => "hello",
                     38:   4 => &$value3,
                     39:   $value4 => &$value2
                     40: );
                     41: echo "-- with one array --\n";
                     42: var_dump( array_map('callback1', $arr1) );
                     43: 
                     44: echo "-- with two arrays --\n";
                     45: var_dump( array_map('callback_cat', $arr1, $arr1) );
                     46: 
                     47: echo "Done";
                     48: ?>
                     49: --EXPECTF--
                     50: *** Testing array_map() : array with references for 'arr1' argument ***
                     51: -- with one array --
                     52: array(6) {
                     53:   [0]=>
                     54:   int(0)
                     55:   [1]=>
                     56:   string(5) "hello"
                     57:   [2]=>
                     58:   string(5) "hello"
                     59:   [3]=>
                     60:   string(5) "hello"
                     61:   [4]=>
                     62:   int(0)
                     63:   ["hello"]=>
                     64:   string(5) "hello"
                     65: }
                     66: -- with two arrays --
                     67: array(6) {
                     68:   [0]=>
                     69:   string(2) "00"
                     70:   [1]=>
                     71:   string(10) "hellohello"
                     72:   [2]=>
                     73:   string(10) "hellohello"
                     74:   [3]=>
                     75:   string(10) "hellohello"
                     76:   [4]=>
                     77:   string(2) "00"
                     78:   [5]=>
                     79:   string(10) "hellohello"
                     80: }
                     81: Done