#29508 [NEW]: Primitive types not allowed in type hinting of function arguments
From: corey at eyewantmedia dot com
Operating system: winXP Pro
PHP version: 5.0.0
PHP Bug Type: Zend Engine 2 problem
Bug description: Primitive types not allowed in type hinting of function arguments
Description:
------------
The problem is that you can't type hint a primitive type in a function
declaration and use the function with a primitive type. No primitive types
work, so every function (to be safe) has to do some sort of
if(is_int($x)) {
// do stuff
} else {
die("Must be an int!");
}
Since php scalars are so loosely typed, it seems like it would be good
practice to require a specific type of argument when the logic contained
in the function demands a specific type of variable. It saves TONS of
code.
I am running the default compile of 5.0 for windows, with mysqli, curl,
and mcrypt enabled. I have all errors printing since this is in
devlopment, but this bug is a fatal error so I think it would print out
anyway.
Reproduce code:
---------------
<?php
Class Test {
private $i;
private $d;
private $s;
private $b;
public function SetI(int $x) { $this->i = $x; }
public function SetD(double $x) { $this->d = $x; }
public function SetS(int $x) { $this->s = $x; }
public function SetB(int $x) { $this->b = $x; }
}
$o = new Test();
$o->SetI(4);
$o->SetD(4.65);
$o->SetS("yay");
$o->SetB(false);
?>
Expected result:
----------------
I expect $o->SetI(4) to accept 4 since 4 is an int (and is_int(4) returns
true), $o->SetD(4.65) to accept 4.65 since it is a double, $o->SetS("yay")
to accept "yay" since it is a string, and $o->SetB(false) to accept false,
since it is a bool.
Actual result:
--------------
Fatal error: Argument 1 must be an object of class [int, string, double,
bool] in test.php on line X
--
Edit bug report at http://bugs.php.net/?id=29508&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=29508&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=29508&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=29508&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=29508&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=29508&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=29508&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=29508&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=29508&r=support
Expected behavior: http://bugs.php.net/fix.php?id=29508&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=29508&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=29508&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=29508&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=29508&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=29508&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=29508&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=29508&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=29508&r=float
Thread (8 messages)
- corey at eyewantmedia dot com