Unable to load mcrypt extension, <br/> Please check PHP configuration

Unable to load MCrypt extension,
Please check the PHP configuration

Unable to load MCrypt extension,
Please check the PHP configuration
The following scenarios may cause the run phpMyAdmin program prompt to "fail to load the mcrypt extension,
Please check the PHP configuration "error message

1, did not correctly install MySQL database, in the system service MySQL related services did not start?? (See how to install MySQL correctly)

2, in the system system32 (C:\WINDOWS\SYSTEM32) directory is missing Libmcrypt.dll file, the solution is to find the PHP directory Libmcrypt.dll, and copy Libmcrypt.dll to c \ Windows\System32 directory, and then restart the Web service.

3, in the C:\windows directory of the php.ini file, there is no "; Extension=php_mcrypt.dll" in the previous ";" removed, so the function cannot be used, the workaround is to open the php.ini file
Found it
; Extension=php_mcrypt.dll
Change into
Extension=php_mcrypt.dll??? To remove from the front; make it effective.

4, the MySQL directory does not have read permissions, the correct directory permissions are as follows:
Administrator?? Full Control
System??? Full Control

User??? Read Plus Run
All other user rights are removed (also retained, but not high security, recommended to delete), and then restart the MySQL service and Web service (recommended to modify this key after restarting the server)
When you have tried all the methods after still not, actually there is a step, online very few say, solution, my is WINXP+IIS+PHP5+MYSQL5

Zhao Face > My Computer > Right-click Properties > Advanced > Environment Variables > System Variables > New

Name: PHPRC
Value: d:\php? (What directory is your PHP in?)

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