PHP on Windows with XAMPP running 100 times too slow

PHP runs so slowly on my Windows desktop that phpMyAdmin takes minutes to open a database. Here’s a comparison of the time to run a simple PHP test program:

Windows 8.1 machine running XAMPP: 3597 ms
iPage shared hosting: 65 ms
A2Hosting shared hosting: 26 ms

Here’s the test program…

<?php
$rStartTime = microtime(true);
$countTo = 100000;
$a = 0;
//$countTo = $countTo * 100;
for ($x = 0; $x <= $countTo; $x++) {
    $a = sqrt(pow($x, 2));
}
$rMs = floor((microtime(true) - $rStartTime) * 1000);
echo 'timer done, countTo=' . $a . ' ms=' . $rMs;

The test program is run without debugging, by entering "http://localhost/timer.php" into Firefox.

The local machine is normally blazing fast. It’s running…

Windows 8.1
XAMPP 1.8.3 (control panel v3.2.1)
Apache 2.4.4 (latest is 2.4.20)
PHP 5.5.3
Antimalware = Windows Defender
IDE = PHPStorm 10.0.2

What's making PHP run so slowly?

I found the problem was Xdebug in xampp\php\php.ini. Here're the results of trying many solutions found around the web:

Run XAMPP as adminisrator and restart server: 3617 ms

In xampp/apache/conf/httpd.conf, replace localhost with 127.0.0.1 and restart server: 3639 ms

In Windows/System32/drivers/etc/hosts, add “127.0.0.1 127.0.0.1” & “127.0.0.1 localhost” and restart Windows: 3960 ms

In Windows/System32/drivers/etc/hosts, un-comment “127.0.0.1 localhost” and restart Windows: 3659 ms

In php.ini, uncomment zend_extension = "C:\xampp\php\ext\php_eaccelerator_ts.dll" and restart server: 3643 ms

In php.ini, set xdebug.remote_enable=0: 3598 ms

In php.ini, set remote_host="localhost": 3593 ms

In php.ini, set xdebug.profiler_enable=0: 249 ms

In php.ini, comment out all Xdebug statements: 27 ms - Success!

The sad part is, I make mistakes and need Xdebug :-(

I solve my problem with xdebug idekey setting (xdebug.idekey="xdebug1"), and chrome extension xdebug helper (https://chrome.google.com/webstore/detail/xdebug-helper/eadndfjplgieldjbigjakmdgkmoaaaoc)

*Dont forget to disable remote_autostart (xdebug.remote_autostart=0)

Only activating debug (xdebug) by request, using idekey setting, so if debug not needed php processing can be faster/normal, tonggle by button with chrome extension

I'm using xampp 1.8.3 on windows 10 64bit, i use custom idekey, xdebug.idekey="xdebug1", same with xdebug helper setting

[XDebug]
zend_extension = "E:\xampp183\php\ext\php_xdebug.dll"
xdebug.profiler_append = 0
xdebug.profiler_enable = 1
xdebug.profiler_enable_trigger = 0
xdebug.profiler_output_dir = "E:\xampp183\tmp"
xdebug.profiler_output_name = "cachegrind.out.%t-%s"
xdebug.remote_enable = 1
xdebug.remote_autostart=0
xdebug.idekey="xdebug1"
xdebug.remote_handler = "dbgp"
xdebug.remote_host = "127.0.0.1"
xdebug.trace_output_dir = "E:\xampp183\tmp"
xdebug.remote_log="E:\xampp183\tmp\xdebug\xdebug.log"

Now breakpoint/debug activated only if session is requsted via xdebug helper

Carsten Wartmann

I excluded my website folder and my xampp folder in Windows Defender and things were solved here.

I Had the same problem with xampp, and the problem was WINDOWS DEFENDER, if you disable the windows defender protection, xampp is faster (normal speed), Also you can search the xampp folder as exlusion in windows defender. these is the solution.

Zudi

I figured out that Eclipse did not end a XDebug session properly. I solved the problem by restarting the debug session and ending it properly.

Solved php - WAMP/XAMPP is responding very slow over localhost / wordpress

The easiest way is that go to c dirive > xamp > php folder > search php.ini > clink on top then find max_execution_time anset it to max_execution_time=300 > now restart xamp > all done :)

max_execution_time=300

for me has been an improvement after changing all of above to change from https://localhost to https://127.0.0.1

For chrome users: I found out (after trying all hints above) that the Chrome extension "Evernote Web Clipper" is also slowing down chrome. When loading a plain URL without any includes: enabled / disabled Evernote Web Clipper: 0,7ms / 0,25ms

来源：https://stackoverflow.com/questions/36754293/php-on-windows-with-xampp-running-100-times-too-slow

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php

windows

xampp

xdebug