每个浏览器请求多次执行php脚本

Question

I have a virtual host in apache. I am on ubuntu 10.04 using LAMP.

<VirtualHost *:80>
DocumentRoot /home/username/websites/site_folder
ServerName www.site_folder.com
ServerAlias site_folder.com
    <Directory /home/username/websites/site_folder/>
        Options Indexes FollowSymLinks MultiViews
        AllowOverride All
        Order allow,deny
        allow from all
    </Directory>
</VirtualHost>

I added in /etc/hosts the line:

127.0.0.1 site_folder.com

Inside the folder of the vhost I added a php script named one.php, having the code:

<?php
$today = getdate();
$handle = fopen("logs/logs.txt", "a");
fwrite($handle, $today['mday'].'/'.$today['mon'].'/'.$today['year']." this is a log post"." 
");
fclose($handle);
?>

when I run the script from the browser, http://localhost/one.php or site_folder.com/one.php, the logs.txt has logged the same message 3 times:

12/4/2011 this is a log post 
12/4/2011 this is a log post 
12/4/2011 this is a log post 

Using netbeans debugger I saw that that the script is actually repeated 3 times (after reaching the end of the script it continues from the start of the same script->one.php) No .htaccess exists inside the folder.

What I have noticed is that the $_SERVER['REQUEST_URI'] changes a bit each execution/repetition:

1)$_SERVER['REQUEST_URI'] => /one.php?XDEBUG_SESSION_START=netbeans-xdebug
2)$_SERVER['REQUEST_URI'] => /one.php
3)$_SERVER['REQUEST_URI'] => /one.php

I need to log my message only once.

I added the uncommented directives from apache2.conf :

ServerRoot "/etc/apache2"
LockFile /var/lock/apache2/accept.lock
PidFile ${APACHE_PID_FILE}
Timeout 300
KeepAlive On
MaxKeepAliveRequests 100
KeepAliveTimeout 15
<IfModule mpm_prefork_module>
    StartServers          5
    MinSpareServers       5
    MaxSpareServers      10
    MaxClients          150
    MaxRequestsPerChild   0
</IfModule>
<IfModule mpm_worker_module>
    StartServers          2
    MinSpareThreads      25
    MaxSpareThreads      75 
    ThreadLimit          64
    ThreadsPerChild      25
    MaxClients          150
    MaxRequestsPerChild   0
</IfModule>
<IfModule mpm_event_module>
    StartServers          2
    MaxClients          150
    MinSpareThreads      25
    MaxSpareThreads      75 
    ThreadLimit          64
    ThreadsPerChild      25
    MaxRequestsPerChild   0
</IfModule>
User ${APACHE_RUN_USER}
Group ${APACHE_RUN_GROUP}
AccessFileName .htaccess
<Files ~ "^\.ht">
    Order allow,deny
    Deny from all
    Satisfy all
</Files>
DefaultType text/plain
HostnameLookups Off
ErrorLog /var/log/apache2/error.log
LogLevel warn
Include /etc/apache2/mods-enabled/*.load
Include /etc/apache2/mods-enabled/*.conf
Include /etc/apache2/httpd.conf
Include /etc/apache2/ports.conf
LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent
CustomLog /var/log/apache2/other_vhosts_access.log vhost_combined
Include /etc/apache2/conf.d/
Include /etc/apache2/sites-enabled/

Answer 1

I've reinstalled the server and everything works fine now.