Mukesh Chapagain's Blog » configuration

php.ini : Most commonly used php directives

Mukesh — Thu, 14 Jan 2010 18:02:22 +0000

Below are the most commonly used php directives. You have to change php.ini file in order to configure php settings. This just means changing these directive’s option and value.

1) short_open_tag = Off

Allow the many servers don’t support short tags.

2) max_execution_time = 30

Maximum execution time of each script, in seconds

3) error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT

This shows all errors, except coding standards warnings. Some more examples for error_reporting setting:

- Show all errors, except for notices and coding standards warnings
error_reporting = E_ALL & ~E_NOTICE

- Show all errors, except for notices
error_reporting = E_ALL & ~E_NOTICE | E_STRICT

- Show only errors
error_reporting= E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR

4) display_errors = On

Print out errors (as a part of the output). For production web sites, you’re strongly encouraged to turn this feature off, and use error logging instead (see below). Keeping display_errors enabled on a production web site may reveal security information to end users, such as file paths on your Web server, your database schema or other information.

5) log_errors = On

Log errors into a log file (server-specific log, stderr, or error_log (below)). As stated above, you’re strongly advised to use error logging in place of error displaying on production web sites.

6) register_globals = Off

You should do your best to write your scripts so that they do not require register_globals to be on.

Using form variables as globals can easily lead to possible security problems, if the code is not very well thought of.

7) memory_limit = 128M

This sets the maximum amount of memory in bytes that a script is allowed to allocate. This helps prevent poorly written scripts for eating up all available memory on a server.

8) post_max_size = 8M

Maximum size of POST data that PHP will accept. In the above example Post max size is 8MB.

This setting also affects file upload. To upload large files, this value must be larger than upload_max_filesize. If memory limit is enabled by your configure script, memory_limit also affects file uploading. Generally speaking, memory_limit should be larger than post_max_size .

9) file_uploads = On

Whether to allow HTTP file uploads.

10) upload_max_filesize = 2M

Maximum allowed size for uploaded files. In above case, 2MB.

11) allow_url_fopen = On

Whether to allow the treatment of URLs (like http:// or ftp://) as files.

Cheers n Enjoy PHPing !!

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How to find php version and php.ini file location path?

Mukesh — Thu, 14 Jan 2010 17:47:43 +0000

We can view the php settings by creating a php file in our web root with the following code:

Let the name of the file be phpinfo.php
Open http://localhost/phpinfo.php in your browser in your local computer. If you are working online then open http://yoursite/phpinfo.php

You will see the following on your browser:

PHP INFO

You can clearly see that the PHP Version I am using is 5.2.5. Your version may be different from mine.

From this page, you will be able to review about all the php directives whether they are in enabled or disabled state. You can enable, disable, or edit directives from php.ini file. You can see in the image above about the location of php.ini file. See Loaded Configuration File. It shows the path of php.ini file to be C:\wamp\bin\apache\apache2.2.6\bin\php.ini. You have to change this file (php.ini) in order to configure your php settings.

Cheers n Enjoy PHPing :-)

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Configuration error on new Magento installation

Mukesh — Tue, 07 Jul 2009 12:17:28 +0000

Scenario:

I am installing a fresh magento 1.3.2.1 in my Windows XP computer. I have Xampp installed. While installing magento, I had a problem at the configuration step where I had to fill database host, username, password etc. When I click continue after filling the required fields, the installation process doesn’t move forward. I am redirected to the same page.

Solution:

I googled and was suggested to put 127.0.0.1 instead of localhost in the url; e.g. to put http://127.0.0.1/magento instead of http://localhost/magento . I did the same but then I got the following error displayed:

Database server does not support InnoDB storage engine
Database connection error

This error was solved. I opened my.cnf file present inside mysql/bin/ in notepad and uncommented (removed # sign) from the line skip_innodb.

Change:
#skip-innodb to skip-innodb

But still, my problem was not solved. I could not pass through the configuration page. Then I found a solution which finally helped me. I changed chmod of the following three folders to 777, i.e. making the folders writable. These folders are inside your magento folder. In windows, right click the folder, go to properties, uncheck ‘Read Only’ present under Attributes. The folders to change are as under:

app/etc
var
media

Finally, I am through and I completed Magento installation. Hurray :)

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