hphp/test/quick/undefined_is_type.php

   1 <?hh
   2
   3 function foo() {
   4   // Force all the types to be in so these don't get constant folded.
   5   if (isset($GLOBALS['a'])) $a = 1;
   6   if (isset($GLOBALS['b'])) $a = 1.2;
   7   if (isset($GLOBALS['c'])) $a = '1';
   8   if (isset($GLOBALS['d'])) $a = new stdclass;
   9   if (isset($GLOBALS['e'])) $a = array();
  10   if (isset($GLOBALS['f'])) $a = false;
  11   if (isset($GLOBALS['g'])) $a = null;
  12
  13   echo "set:     ", isset($a)      . "\n";
  14   echo "nul:     ", is_null($a)    . "\n";
  15   echo "str:     ", is_string($a)  . "\n";
  16   echo "obj:     ", is_object($a)  . "\n";
  17   echo "arr:     ", is_array($a)   . "\n";
  18   echo "int:     ", is_int($a)     . "\n";
  19   echo "integer: ", is_integer($a) . "\n";
  20   echo "long:    ", is_long($a)    . "\n";
  21   echo "real:    ", is_real($a)    . "\n";
  22   echo "double:  ", is_double($a)  . "\n";
  23   echo "float:   ", is_float($a)   . "\n";
  24   echo "bool:    ", is_bool($a)    . "\n";
  25 }
  26
  27 foo();