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# CLXV. win32service Functions

# Introduction

The win32service extension is a Windows specific extension that allows PHP to communicate with the Service Control Manager to start, stop, register and unregister services, and even allows your PHP scripts to run as a service.

# Requirements

Windows NT, Windows 2000, Windows XP or Windows Server 2003. Any version of windows derived from Windows NT should be compatible.

# Installation

Installing from PECL

1. You can download php_win32service.dll from http://snaps.php.net/win32/. Choose the PECL_X_X folder that matches you PHP version.

2. Copy the php_win32service.dll into your extension_dir.

3. Load the extension from your `php.ini`

       extension=php_win32service.dll

# Examples

Example 1. Registering a PHP script to run as a service
`<?php win32_create_service(array( 'service' => 'dummyphp', # the name of your service 'display' => 'sample dummy PHP service', # description 'params' => 'c:\path\to\script.php run', # path to the script and parameters )); ?>`

Example 2. Unregistering a service
`<?php win32_delete_service('dummyphp'); ?>`

Example 3. Running as a service
`<?php if ($argv[1] == 'run') { win32_start_service_ctrl_dispatcher('dummyphp'); while (WIN32_SERVICE_CONTROL_STOP != win32_get_last_control_message()) { # do your work here. # try not to take up more than 30 seconds before going around the loop # again } } ?>`

# Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

`WIN32_SERVICE_CONTROL_CONTINUE` (integer)

`WIN32_SERVICE_CONTROL_INTERROGATE` (integer)

`WIN32_SERVICE_CONTROL_PAUSE` (integer)

`WIN32_SERVICE_CONTROL_STOP` (integer)

`WIN32_SERVICE_CONTROL_HARDWAREPROFILECHANGE` (integer)

`WIN32_SERVICE_CONTROL_POWEREVENT` (integer)

`WIN32_SERVICE_CONTROL_SESSIONCHANGE` (integer)

`WIN32_ERROR_CALL_NOT_IMPLEMENTED` (integer)

`WIN32_NO_ERROR` (integer)

`WIN32_SERVICE_RUNNING` (integer)

`WIN32_SERVICE_STOPPED` (integer)

`WIN32_SERVICE_STOP_PENDING` (integer)

`WIN32_SERVICE_WIN32_OWN_PROCESS` (integer)

`WIN32_SERVICE_INTERACTIVE_PROCESS` (integer)

`WIN32_SERVICE_STOPPED` (integer)

`WIN32_SERVICE_START_PENDING` (integer)

`WIN32_SERVICE_STOP_PENDING` (integer)

`WIN32_SERVICE_RUNNING` (integer)

`WIN32_SERVICE_CONTINUE_PENDING` (integer)

`WIN32_SERVICE_PAUSE_PENDING` (integer)

`WIN32_SERVICE_PAUSED` (integer)

`WIN32_SERVICE_ACCEPT_NETBINDCHANGE` (integer)

`WIN32_SERVICE_ACCEPT_PARAMCHANGE` (integer)

`WIN32_SERVICE_ACCEPT_PAUSE_CONTINUE` (integer)

`WIN32_SERVICE_ACCEPT_SHUTDOWN` (integer)

`WIN32_SERVICE_ACCEPT_STOP` (integer)

`WIN32_SERVICE_ACCEPT_HARDWAREPROFILECHANGE` (integer)

`WIN32_SERVICE_ACCEPT_POWEREVENT` (integer)

`WIN32_SERVICE_ACCEPT_SESSIONCHANGE` (integer)

`WIN32_SERVICE_FILE_SYSTEM_DRIVER` (integer)

`WIN32_SERVICE_KERNEL_DRIVER` (integer)

`WIN32_SERVICE_WIN32_SHARE_PROCESS` (integer)

`WIN32_SERVICE_RUNS_IN_SYSTEM_PROCESS` (integer)

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