ID: 37563
Updated by: [EMAIL PROTECTED]
Reported By: bugs dot php dot net at nanonanonano dot net
-Status: Open
+Status: Assigned
Bug Type: Performance problem
Operating System: Linux
PHP Version: 5CVS-2006-05-23 (snap)
-Assigned To:
+Assigned To: ilia
New Comment:
Ilia, could you plz have a look at it?
Previous Comments:
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[2006-05-23 17:16:29] bugs dot php dot net at nanonanonano dot net
Description:
------------
If there is a reference taken to an array ($b =& $a) then the
performance of array_key_exists($foo, $a) drops off enormously unless
array_key_exists($foo, &$a) is used.
(Note this is identical to #30295 which is marked as fixed in CVS but
doesn't appear to be fixed at all: it is found in both 4CVS and 5CVS)
Reproduce code:
---------------
Based on the code in bug #30295:
http://pastebin.com/733286
Expected result:
----------------
Time for the following operations should be approximately the same:
array_key_exists($i, $a);
$b =& $a; array_key_exists($i, $a);
$b =& $a; array_key_exists($i, &$a);
Actual result:
--------------
Time for
$b =& $a; array_key_exists($i, $a);
is significantly greater than for the others.
Sample times from running the reproduce code:
Test with no refs: 0.0012528896331787
Test with a ref to the array: 0.78344106674194
Test with a ref to the array and pass by ref: 0.0019340515136719
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Edit this bug report at http://bugs.php.net/?id=37563&edit=1
