hphp/test/slow/ext_array/array_keys.php

   1 <?hh
   2
   3 <<__EntryPoint>>
   4 function main_array_keys() {
   5 var_dump(array_keys(array(0 => 100, "color" => "red")));
   6 var_dump(array_keys(
   7   array("color" => array("blue", "red", "green"),
   8         "size" => array("small", "medium", "large"))
   9 ));
  10
  11 $array = array(
  12   "a" => null,
  13   "b" => 123,
  14   "c" => false,
  15 );
  16 var_dump(array_keys($array));
  17 }