How to solve the problem of php require once error

Solution to php require once error: First find and open the "php.ini" file; then change "display_error=off" to "display_error=on"; finally enable readable permissions for the IUSR of the upper-level directory That’s it.

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Problem Description:

Just now After installing PMA and accessing it in Firefox, you will see a whiteboard and nothing will be output. You can see the 500 error (server internal error) using IE

After opening the error report, I found

Warning: require_once(./libraries/common.inc.php) [function.require- once]: failed to open stream: No such file or directory in ***\mousebomb\pma\index.php on line 35

Fatal error: require_once() [function.require]: Failed opening required ' ./libraries/common.inc.php' (include_path='.;C:\php5\pear') in ***\mousebomb\pma\index.php on line 35

And the file It does exist and IUSR (IIS anonymous access user) has permissions.

Solution:

Whiteboard solution: Modify the relevant error output settings in php.ini. The default php.ini only needs to change display_error=off to display_error =on can

require error resolution: require all relative path files starting with ./, the IUSR of the upper-level directory must be enabled with readable permissions. Not only when configuring PMA, no matter what website, under wimp, you must pay attention to the fact that files starting with ./ must be readable by the upper-level directory if you want to access them.

Related literature:

http://hi.baidu.com/ucsec/blog/item/193bc1b6e3ae98fc31add1ab.html

Sometimes after installing PHPmyAdmin , the following situation will occur when accessing in IE:

Warning: require_once(./libraries/common.lib.php): failed to open stream: No such file or directory in ***\ index.php on line 40
Fatal error: main(): Failed opening required './libraries/common.lib.php' (include_path='.;c:\php5\pear') in ***\index .php on line 40

The reasons for this problem are as follows:

1. Your PHPmyAdmin directory is placed in the root directory of the disk.
2. The permission setting problem of your PHPmyAdmin directory and the upper directory

Solution:

·Replace PHPmyAdmin Do not place the directory in the root directory of the disk, such as in D:\SiteManage\phpmyadmin
· Set the permissions for the PHPmyAdmin directory and the upper directory as follows:
Users　Read and run
IUSR_…… Read and run

Another solution:
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Encountered a strange problem. After installing phpmyadmin, the following error is reported:
Warning: require_once(./libraries/common.lib.php) [function.require-once]: failed to open stream: No such file or directory in X:\Xxxxx\ phpmyadmin\index.php on line 36
Fatal error: require_once() [function.require]: Failed opening required './libraries/common.lib.php' (include_path='.;C:\php5\pear' ) in

After a while of debugging, I finally found the solution:

The upper-level ACls permissions in the phpmyadmin and php installation directories are not enough, ha!

Give phpmyadmin, php, and the same Acls users in their upper-level directories Read rights; then open the Blog and get it done successfully! ^_^
Notes and security risks:

1. Please do not install phpmyadmin in the root directory of the site or virtual host , because then the guest user will have permissions to the root directory.

2. Give phpmyadmin the IIS process running user and IIS anonymous User read permissions. It is strongly recommended not to add everyone to the ACLs permission list. 3. When you are debugging a program or configuring a script environment, please try to read as many FAQs as possible first! Then find the reason from the error code... (For example, for the above error message, you open line 36 of index.php and look at PHP The cause of the error will be clear after the command executed by the code)
Note tips:

1. Do not unzip phpmyadmin and install it in the root directory, because then the guest user will own the root directory permissions.

2. Give phpmyadmin the iis user rights and the user group user rights. It is not recommended to add everyone permission.

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The above two methods have the same idea, you can try it

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