The php.ini file is a configuration file that the server looks at to see what PHP options have been made available to the server or what their setting are, if different from the server's default php.ini. While the name may seem advanced to those unfamiliar with it, it is in essence a simple text file with the name php.ini

How to create a php.ini file
To create a php.ini file, just open up a text editor, add in the lines you need and save the file. You can name the file whatever you wish when saving, to ensure the correct FTP transfer mode is used, you might wish to name it "php.ini.txt". Once you have configured all your settings, upload the file to the directory where your script is located and then rename it back to php.ini

For example you can turn on the php setting "magic_quotes_gpc" with this line in php.ini:

magic_quotes_gpc = on

In many cases, you might need to have multiple copies of the same php.ini file in different directories, unlike .htaccess files, php.ini files are not applied recursively to lower directories. If you need the same functionality across all lower directries also, you will then need to copy the php.ini file each directory in turn that will have .php scripts running from within them.

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