From: y_kopel at walla dot com
Operating system: linux
PHP version: 5.3.1
PHP Bug Type: Arrays related
Bug description: the iteration on arrays with calling functions is very slow
Description:
------------
the iteration on arrays with calling functions is very slow
comparing php 5.2.1 to 5.3.1
Reproduce code:
---------------
<?php
define("FLOATING_POINT",6);
function ww($f){
echo sprintf("%.".FLOATING_POINT."f", $f)."\n";
}
class A{
protected $users;
function __construct(){
for ($i = 0 ;$i < 100000 ; $i++){
$this->users[$i]['ELEMENT'] = array("a","b");
$this->users[$i]['SUM'] = 2;
}
}
function check_more_than_one_element(){
$sum = 0;
foreach ($this->users as &$u){
if (count($u['ELEMENT']) > 1){
$sum++;
}
}
return $sum;
}
function a_check_more_than_one_element(){
$sum = 0;
foreach ($this->users as &$u){
if ($u['SUM'] > 1){
$sum++;
}
}
return $sum;
}
}
$a = new A();
$start = microtime(true);
echo "-----\n";
for ($i = 0 ;$i < 5 ; $i++){
$a->check_more_than_one_element();
$a->check_more_than_one_element();
$a->check_more_than_one_element();
$a->check_more_than_one_element();
}
echo "-----\n";
echo microtime(true) - $start."\n";
$a = new A();
$start = microtime(true);
echo "-----\n";
for ($i = 0 ;$i < 5 ; $i++){
$a->a_check_more_than_one_element();
$a->a_check_more_than_one_element();
$a->a_check_more_than_one_element();
$a->a_check_more_than_one_element();
}
echo "-----\n";
echo microtime(true) - $start."\n";
?>
Expected result:
----------------
php 5.2.1
=========
-----
-----
1.75261092186
-----
-----
1.05390191078
Actual result:
--------------
php 5.3.1
=========
-----
-----
58.992564916611
-----
-----
30.829360961914
--
Edit bug report at http://bugs.php.net/?id=51122&edit=1
--
Try a snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=51122&r=trysnapshot52
Try a snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=51122&r=trysnapshot53
Try a snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=51122&r=trysnapshot60
Fixed in SVN:
http://bugs.php.net/fix.php?id=51122&r=fixed
Fixed in SVN and need be documented:
http://bugs.php.net/fix.php?id=51122&r=needdocs
Fixed in release:
http://bugs.php.net/fix.php?id=51122&r=alreadyfixed
Need backtrace:
http://bugs.php.net/fix.php?id=51122&r=needtrace
Need Reproduce Script:
http://bugs.php.net/fix.php?id=51122&r=needscript
Try newer version:
http://bugs.php.net/fix.php?id=51122&r=oldversion
Not developer issue:
http://bugs.php.net/fix.php?id=51122&r=support
Expected behavior:
http://bugs.php.net/fix.php?id=51122&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=51122&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=51122&r=submittedtwice
register_globals:
http://bugs.php.net/fix.php?id=51122&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=51122&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=51122&r=dst
IIS Stability:
http://bugs.php.net/fix.php?id=51122&r=isapi
Install GNU Sed:
http://bugs.php.net/fix.php?id=51122&r=gnused
Floating point limitations:
http://bugs.php.net/fix.php?id=51122&r=float
No Zend Extensions:
http://bugs.php.net/fix.php?id=51122&r=nozend
MySQL Configuration Error:
http://bugs.php.net/fix.php?id=51122&r=mysqlcfg
