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Annotation of embedaddon/php/ext/standard/tests/array/array_filter_variation5.phpt, revision 1.1.1.1

1.1       misho       1: --TEST--
                      2: Test array_filter() function : usage variations - 'input' argument with different false entries
                      3: --FILE--
                      4: <?php
                      5: /* Prototype  : array array_filter(array $input [, callback $callback])
                      6:  * Description: Filters elements from the array via the callback. 
                      7:  * Source code: ext/standard/array.c
                      8: */
                      9: 
                     10: /*
                     11: * With default callback function argument, array_filter() removes elements which are interpreted as false 
                     12: * Here Testing all the false array element possibilities
                     13: */
                     14: 
                     15: // callback function always_true
                     16: function always_true($input)
                     17: {
                     18:   return true;
                     19: }
                     20: 
                     21: // callback function always_false
                     22: function always_false($input)
                     23: {
                     24:   return false;
                     25: }
                     26: 
                     27: echo "*** Testing array_filter() : usage variations - different false elements in 'input' ***\n";
                     28: 
                     29: // unset variable
                     30: $unset_var = 10;
                     31: unset($unset_var);
                     32: 
                     33: // empty heredoc string
                     34: $empty_heredoc =<<<EOT
                     35: EOT;
                     36: 
                     37: // input array with different false elements
                     38: $input = array(
                     39:   false,
                     40:   False,
                     41:   '',
                     42:   "",
                     43:   0,
                     44:   0.0,
                     45:   null,
                     46:   NULL,
                     47:   "0",
                     48:   '0',
                     49:   array(),
                     50:   !1,
                     51:   1==2,
                     52:   $empty_heredoc,
                     53:   @$unset_var,
                     54:   @$undefined_var,
                     55: );
                     56: 
                     57: // With default callback function
                     58: var_dump( array_filter($input) );  
                     59: 
                     60: // With callback function which returns always true
                     61: var_dump( array_filter($input, 'always_true') ); 
                     62: 
                     63: // With callback function which returns always false
                     64: var_dump( array_filter($input, 'always_false') );  
                     65: 
                     66: echo "Done"
                     67: ?>
                     68: --EXPECTF--
                     69: *** Testing array_filter() : usage variations - different false elements in 'input' ***
                     70: array(0) {
                     71: }
                     72: array(16) {
                     73:   [0]=>
                     74:   bool(false)
                     75:   [1]=>
                     76:   bool(false)
                     77:   [2]=>
                     78:   string(0) ""
                     79:   [3]=>
                     80:   string(0) ""
                     81:   [4]=>
                     82:   int(0)
                     83:   [5]=>
                     84:   float(0)
                     85:   [6]=>
                     86:   NULL
                     87:   [7]=>
                     88:   NULL
                     89:   [8]=>
                     90:   string(1) "0"
                     91:   [9]=>
                     92:   string(1) "0"
                     93:   [10]=>
                     94:   array(0) {
                     95:   }
                     96:   [11]=>
                     97:   bool(false)
                     98:   [12]=>
                     99:   bool(false)
                    100:   [13]=>
                    101:   string(0) ""
                    102:   [14]=>
                    103:   NULL
                    104:   [15]=>
                    105:   NULL
                    106: }
                    107: array(0) {
                    108: }
                    109: Done