Doc #70160 [NEW]: string with double colon is callable, but cannot be called
| From: | cf0hay at gmail dot com | Date: | Tue, 28 Jul 2015 15:34:46 +0000 |
| Subject: | Doc #70160 [NEW]: string with double colon is callable, but cannot be called | ||
| Groups: | php.doc.bugs | ||
| Request: | Send a blank email to doc-bugs+get-12561@lists.php.net to get a copy of this message | ||
From: cf0hay at gmail dot com
Operating system: 64bit Linux
PHP version: 5.6.11
Package: Documentation problem
Bug Type: Documentation Problem
Bug description:string with double colon is callable, but cannot be called
Description:
------------
callable typehint and is_callable may return true for a string with
double colon, but it's not callable with parentheses. On the page
http://php.net/manual/en/language.types.callable.php
"As of PHP 5.2.3, it is also possible to pass 'ClassName::methodName'"
Well, able to pass, but cannot use.
Occurs in PHP 5.6. PHP 7.0 doesn't have this problem, it works properly.
Test script:
---------------
<?php
namespace ns {
class cls{
static function sfn(){
return 'OK';
}
}
}
namespace {
function mycallfn(callable $x){
if(is_callable($x)){
return $x();
}else{
return 'FAIL';
}
}
echo mycallfn(["ns\\cls", "sfn"])."\n";
echo mycallfn("ns\\cls::sfn")."\n";
}
Expected result:
----------------
OK
OK
Actual result:
--------------
OK
PHP Fatal error: Call to undefined function ns\cls::sfn() on line 13
--
Edit bug report at https://bugs.php.net/bug.php?id=70160&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70160&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70160&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70160&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=70160&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=70160&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=70160&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=70160&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=70160&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=70160&r=support
Expected behavior: https://bugs.php.net/fix.php?id=70160&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=70160&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=70160&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=70160&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70160&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=70160&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=70160&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=70160&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=70160&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=70160&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=70160&r=mysqlcfg