Recently we needed a PHP script to restart a few services on a Windows Server. You can activate an extension for PHP called “Win32Service” that provides the necessary functions in PHP (see PHP manual).
Getting the necessary Library
You need the “php_win32sevices.dll” file that fits your PHP installation. Go to <a href=”http://www.php.net/releases/”>http://www.php.net/releases/</a> and download the “Collection of PECL modules for PHP” that fits your release. Unzip the file and place in your extensions folder (“ext”).
See also: PHP manual
Active the library in your PHP configuration
Add this line to your PHP .INI file
extension=php_win32service.dll
and restart the Apache service.
Create a PHP Script
Here is the PHP Script that we use. It performs the service restart in 4 steps:
- Send the stop command to the service
- Wait until service is stopped
- Send the start command to the service
- Wait until service is started
- Show an error if service does not start
<html><body>
<h1>Restart all Services</h1>
<?php
/* PHP Script to restart a Windows service */
/* (c) 2008 Paessler AG (www.paessler.com) written by Dirk Paessler */
function Status($name)
{
$status=win32_query_service_status($name);
echo "Service state is ";
if ($status["CurrentState"]==1) {echo "Stopped";}
else
if ($status["CurrentState"]==2) {echo "Starting";}
else
if ($status["CurrentState"]==3) {echo "Stopping";}
else
if ($status["CurrentState"]==4) {echo "RUNNING";}
echo "<br>";
return $status["CurrentState"];
/* SERVICE_STOPPED = $1;
SERVICE_START_PENDING = $2;
SERVICE_STOP_PENDING = $3;
SERVICE_RUNNING = $4;
SERVICE_CONTINUE_PENDING = $5;
SERVICE_PAUSE_PENDING = $6;
SERVICE_PAUSED = $7; */
}
function RestartOne($name)
{
echo "<h2>Restarting Service '".$name."'</h2>";
Status($name);
echo "Sending Stop Command...";
flush();
$result=win32_stop_service($name);
echo " (Result: ".$result.")<br>";
Status($name);
// Sleeping and waiting for service to stop for maximum 50 seconds
$count=0;
do
{
flush();
sleep(1);
$count=$count+1;
if ($count==10) {win32_stop_service($name);} //reissue stop command after 10 seconds
if ($count==20) {win32_stop_service($name);} //reissue stop command after 20 seconds
$laststate=Status($name);
}
while (($laststate!=1) and ($count<50));
echo "Sending Start Command... ";
flush();
$result=win32_start_service($name);
echo "(Result: ".$result.")<br>";
flush();
// Sleeping and waiting for service to start for maximum 50 seconds
$count=0;
do
{
flush();
sleep(1);
$count=$count+1;
if ($count==10) {win32_start_service($name);} //reissue stop command after 10 seconds
if ($count==20) {win32_start_service($name);} //reissue stop command after 20 seconds
$laststate=Status($name);
}
while (($laststate!=4) and ($count<50));
if ($laststate!=4)
{
Echo "ERROR: Service '".$name."' did not start, sending just one more start command";
$result=win32_start_service($name); //give it one last try...
}
}
RestartOne("myservicename");
Echo "<h3>Done. All OK</h3>";
?>
