Edit report at https://bugs.php.net/bug.php?id=63655&edit=1

 ID:                 63655
 Comment by:         vincent at lycoops dot be
 Reported by:        sailormax at inbox dot lv
 Summary:            check type functions -> check type operators
 Status:             Open
 Type:               Feature/Change Request
 Package:            Performance problem
 PHP Version:        5.3.19
 Block user comment: N
 Private report:     N

 New Comment:

This is true for simple scalars, yes.
But for large strings, array and objects, it is wrong.

But I agree that this should really be added.


Previous Comments:
------------------------------------------------------------------------
[2012-11-30 11:11:17] sailormax at inbox dot lv

Description:
------------
Currently check type functions (is_string, is_int, is_float, is_bool, 
is_object, is_array) are functions. They are very often use in many engines. 
But because they are functions - they are very slow for engines.
In result engine authors have to use faster alternatives (~2x faster) like:
is_string => ((string)$var === $var)
is_int    => ((int)$var === $var)
is_float  => ((float)$var === $var)
is_bool   => ((bool)$var === $var)
is_object => ((object)$var === $var)
is_array  => ((array)$var === $var)

Can you compile this type of functions as operators?

thank you.

Test script:
---------------
$ts = microtime(true);
for ($i=0; $i<50000; $i++) $res = is_string($_GET);
var_dump(microtime(true) - $ts);
print "<br /><br />";
$ts = microtime(true);
for ($i=0; $i<50000; $i++) $res = ((string)$_GET === $_GET);
var_dump(microtime(true) - $ts);
print "<br /><br />";


Expected result:
----------------
equal time

Actual result:
--------------
is_string ~ 2x slower than ((string)$_GET === $_GET)


------------------------------------------------------------------------



-- 
Edit this bug report at https://bugs.php.net/bug.php?id=63655&edit=1

Reply via email to