Windows timed automatic PHP Program Execution

 

The so-called task plan is to use a computer to automatically call the user's preset applications, so as to simplify user operations. We can schedule any script, program, or document to run at the most appropriate time using the Windows 2000 Task Scheduler (equivalent to the cron program under * NIX, which is not detailed here, to meet your needs. The following uses Windows 2000 as an example.

Specifically, if you need to use the task scheduler to run automatically, perform the following steps:

1. Click Start, select "program"> "Appendix"> "System Tools"> "task plan" (or "set"> "Control Panel"> "Task Plan "), start the task scheduler Management Program for Windows 2000.
2. In the "Task Scheduler" window, double-click the "add Task Scheduler" icon to start the "Task Scheduler wizard" of the system, and then click "Next, select the application to be automatically run in the program list, and click "Next.
3. Set the appropriate task plan name and select the time frequency for Automatic Execution of the task (such as daily, weekly, monthly, one-time, every start of the computer, and every login time ), click "Next. At this time, the system will require the user to set the specific time for the program to run, such as the number, the number of minutes, and the time period to run. We only need to set the time according to our own needs.
4. Next, the system requires the user to set the appropriate user name and password (as shown in Figure 5) so that the system can run automatically in the future.
5. Finally, you only need to click the "finish" button to add the corresponding task to the task scheduler in Windows 2000. Then it will automatically "remember" this task, once the system time and related conditions are consistent with the user's plan, it will automatically call the user's specified application, very convenient (every time Windows 2000 is started, the task scheduler will be automatically started and run in the background to ensure that your plans can be executed on time ).

Now let's test whether the task we just created is successful. Right-click the "php" program icon (6) and choose "run" from the pop-up menu ". In general, the program icon can be started as long as it is activated and running. If the operation fails, check whether the user and password are correctly set, and check whether the "Task Scheduler" service has been started. I originally switched it off to save system resources, causing the operation to fail, I have been searching for it for a long time. In addition, you can also view in the system log what caused the operation failure.

Now we have discussed the application of such a multi-task plan. Here are two examples:

I. Make PHP run regularly

1. Edit the following code and save it as test. php:

   <? Php
   $ Fp = @ fopen ("test.txt", "a + ");
   Fwrite ($ fp, date ("Y-m-d H: I: s"). "Let PHP run regularly! \ N ");
   Fclose ($ fp );
   ?>

2. Add a task scheduler and enter the following command in step (2:
   

   D: \ php4 \ php.exe-q D: \ php4 \ test. php

3. Set the time to run the task once every one minute.
4. Now let's see if the content in the d: \ php4 \ test.txt file is successful. If the content is as follows, congratulations.
   

   11:08:01 let PHP run on a regular basis!
   11:09:02 let PHP run on a regular basis!
   11:10:01 let PHP run on a regular basis!
   11:11:02 let PHP run on a regular basis!

Ii. Enable Automatic MYSQL backup

1. Edit the code below and save it as backup.php. If you want to compress it, You can copy rar.exe:

   <? Php
   If ($ argc! = 2 | in_array ($ argv [1], array ('-- help ','-? '))){
   ?>
   Backup Ver 0.01, for Win95/Win98/WinNT/Win2000/WinXP on i32
   Copyright (C) 2000 ptker All rights reserved.
   This is free software, and you are welcome to modify and redistribute it
   Under the GPL license
   PHP Shell script for the backup MySQL database.
   Usage: <? Php echo $ argv [0];?> <Option>
   <Option> can be database name you wowould like to backup.
   With the -- help, or -? Options, you can get this help and exit.
   <? Php
   } Else {
   $ Dbname = $ argv [1];
   $ Dump_tool = "c: \ mysql \ bin \ mysqldump ";
   $ Rar_tool = "d :\\ php4 \ rar ";
   @ Exec ("$ dump_tool -- opt-u user-ppassword $ dbname>./$ dbname. SQL ");
   @ Exec ("$ rar_tool a-ag_yyyy_mm_dd_hh_mm mongodbname.rar $ dbname. SQL ");
   @ Unlink ("$ dbname. SQL ");
   Echo "Backup complete! ";
   }
   ?>

2. Add a task scheduler and enter the following command in step (2:
   

   D: \ php4 \ php.exe-q D: \ php4 \ backup. php databasename

3. Set the time to run once a day and then run the task.
4. Finally, an rarfile consisting of the Database Name and current time will be generated in the d: \ php4 \ directory.
5. Congratulations! Success!

Of course, there are many backup methods, so readers can do what they like!

The above is the original work. In combination with my own practices, the supplementary instructions are as follows:

1. If an error occurs:

   An error occurred while trying to set the task account information.
   The specified error is:
   0x80070005: Access Denied
   You do not have permission to run the requested operation

   In the above '"4. Next, the system will ask the user to set the appropriate user name and password so that the system can run automatically in the future". It is best to use the "system" user here, the password can be blank.
   This system has a very high level of permissions, which is higher than your administrator, so you should never mess up when running the command, but if there is no prompt, It will be executed unconditionally, you can kill the core process with this permission.

2. 2. Add a task scheduler and enter the following command in this step:
   

   D: \ php4 \ php.exe-q D: \ php4 \ test. php

   The correct format should be

   "D: \ php4 \ php.exe"-q "D: \ php4 \ test. php"

   That is, the path should be enclosed in double quotation marks.