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() :mixed{
  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 = dict['green' => 5, 'blue' => 6, 'yellow' => 7, 'cyan' => 8];
  23 $array3 = vec[1, 2, 3, 4, 5];
  24
  25
  26 //resource variable
  27 $fp = fopen(__FILE__, "r");
  28
  29 // heredoc string
  30 $heredoc = <<<EOT
  31 hello world
  32 EOT;
  33
  34 //array of values to iterate over
  35 $inputs = dict[
  36
  37       // int data
  38       'int 0' => 0,
  39       'int 1' => 1,
  40       'int 12345' => 12345,
  41       'int -12345' => -12345,
  42
  43       // float data
  44       'float 10.5' => 10.5,
  45       'float -10.5' => -10.5,
  46       'float 12.3456789000e10' => 12.3456789000e10,
  47       'float -12.3456789000e10' => -12.3456789000e10,
  48       'float .5' => .5,
  49
  50       // null data
  51       'uppercase NULL' => NULL,
  52       'lowercase null' => null,
  53
  54       // boolean data
  55       'lowercase true' => true,
  56       'lowercase false' =>false,
  57       'uppercase TRUE' =>TRUE,
  58       'uppercase FALSE' =>FALSE,
  59
  60       // empty data
  61       'empty string DQ' => "",
  62       'empty string SQ' => '',
  63
  64       // string data
  65       'string DQ' => "string",
  66       'string SQ' => 'string',
  67       'mixed case string' => "sTrInG",
  68       'heredoc' => $heredoc,
  69
  70       // object data
  71       'instance of classWithToString' => new classWithToString(),
  72       'instance of classWithoutToString' => new classWithoutToString(),
  73
  74
  75
  76       // resource data
  77       'resource' => $fp,
  78 ];
  79
  80 // loop through each element of the array for arr1
  81 foreach($inputs as $key =>$value) {
  82       echo "\n--$key--\n";
  83       var_dump( array_diff_key($value, $array2) );
  84       var_dump( array_diff_key($value, $array2, $array3) );
  85 };
  86
  87 fclose($fp);
  88 echo "===DONE===\n";
  89 }