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Annotation of embedaddon/php/ext/standard/tests/array/array_filter_variation9.phpt, revision 1.1.1.1

1.1       misho       1: --TEST--
                      2: Test array_filter() function : usage variations - built-in functions as 'callback' argument 
                      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 built-in functions and different language constructs as 'callback' argument
                     12: */
                     13: 
                     14: echo "*** Testing array_filter() : usage variations - built-in functions as 'callback' argument ***\n";
                     15: 
                     16: $input = array(0, 1, -1, 10, 100, 1000, 'Hello', null);
                     17: 
                     18: // using built-in function 'is_int' as 'callback'
                     19: var_dump( array_filter($input, 'is_int') );
                     20: 
                     21: // using built-in function 'chr' as 'callback'
                     22: var_dump( array_filter($input, 'chr') );
                     23: 
                     24: // using language construct 'echo' as 'callback'
                     25: var_dump( array_filter($input, 'echo') );
                     26: 
                     27: // using language construct 'exit' as 'callback' 
                     28: var_dump( array_filter($input, 'exit') );
                     29: 
                     30: echo "Done"
                     31: ?>
                     32: --EXPECTF--
                     33: *** Testing array_filter() : usage variations - built-in functions as 'callback' argument ***
                     34: array(6) {
                     35:   [0]=>
                     36:   int(0)
                     37:   [1]=>
                     38:   int(1)
                     39:   [2]=>
                     40:   int(-1)
                     41:   [3]=>
                     42:   int(10)
                     43:   [4]=>
                     44:   int(100)
                     45:   [5]=>
                     46:   int(1000)
                     47: }
                     48: array(8) {
                     49:   [0]=>
                     50:   int(0)
                     51:   [1]=>
                     52:   int(1)
                     53:   [2]=>
                     54:   int(-1)
                     55:   [3]=>
                     56:   int(10)
                     57:   [4]=>
                     58:   int(100)
                     59:   [5]=>
                     60:   int(1000)
                     61:   [6]=>
                     62:   string(5) "Hello"
                     63:   [7]=>
                     64:   NULL
                     65: }
                     66: 
                     67: Warning: array_filter() expects parameter 2 to be a valid callback, function 'echo' not found or invalid function name in %s on line %d
                     68: NULL
                     69: 
                     70: Warning: array_filter() expects parameter 2 to be a valid callback, function 'exit' not found or invalid function name in %s on line %d
                     71: NULL
                     72: Done