hphp/test/zend/good/ext/standard/tests/array/array_diff_key_variation1.php

   1 <?hh
   2 /* Prototype  : array array_diff_key(array arr1, array arr2 [, array ...])
   3  * Description: Returns the entries of arr1 that have keys which are not present in any of the others arguments.
   4  * Source code: ext/standard/array.c
   5  */
   6
   7 // define some classes
   8 class classWithToString
   9 {
  10     public function __toString() {
  11         return "Class A object";
  12     }
  13 }
  14
  15 class classWithoutToString
  16 {
  17 }
  18 <<__EntryPoint>> function main(): void {
  19 echo "*** Testing array_diff_key() : usage variation ***\n";
  20
  21 // Initialise function arguments not being substituted (if any)
  22 $array2 = array('green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8);
  23 $array3 = array(1, 2, 3, 4, 5);
  24
  25 //get an unset variable
  26 $unset_var = 10;
  27 unset ($unset_var);
  28
  29 //resource variable
  30 $fp = fopen(__FILE__, "r");
  31
  32 // heredoc string
  33 $heredoc = <<<EOT
  34 hello world
  35 EOT;
  36
  37 //array of values to iterate over
  38 $inputs = array(
  39
  40       // int data
  41       'int 0' => 0,
  42       'int 1' => 1,
  43       'int 12345' => 12345,
  44       'int -12345' => -12345,
  45
  46       // float data
  47       'float 10.5' => 10.5,
  48       'float -10.5' => -10.5,
  49       'float 12.3456789000e10' => 12.3456789000e10,
  50       'float -12.3456789000e10' => -12.3456789000e10,
  51       'float .5' => .5,
  52
  53       // null data
  54       'uppercase NULL' => NULL,
  55       'lowercase null' => null,
  56
  57       // boolean data
  58       'lowercase true' => true,
  59       'lowercase false' =>false,
  60       'uppercase TRUE' =>TRUE,
  61       'uppercase FALSE' =>FALSE,
  62
  63       // empty data
  64       'empty string DQ' => "",
  65       'empty string SQ' => '',
  66
  67       // string data
  68       'string DQ' => "string",
  69       'string SQ' => 'string',
  70       'mixed case string' => "sTrInG",
  71       'heredoc' => $heredoc,
  72
  73       // object data
  74       'instance of classWithToString' => new classWithToString(),
  75       'instance of classWithoutToString' => new classWithoutToString(),
  76
  77       // undefined data
  78       'undefined var' => @$undefined_var,
  79
  80       // unset data
  81       'unset var' => @$unset_var,
  82
  83       // resource data
  84       'resource' => $fp,
  85 );
  86
  87 // loop through each element of the array for arr1
  88 foreach($inputs as $key =>$value) {
  89       echo "\n--$key--\n";
  90       var_dump( array_diff_key($value, $array2) );
  91       var_dump( array_diff_key($value, $array2, $array3) );
  92 };
  93
  94 fclose($fp);
  95 echo "===DONE===\n";
  96 }