[CENTOS] PHP Increase Upload File Size Limit

- The default will restrict you to a max 2 MB upload file size.
- upload_max_filesize – The maximum size of an uploaded file.
- memory_limit – 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. Note that to have no memory limit, set this directive to -1.
post_max_size – Sets max size of post data allowed. 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.
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- There are two methods two fix this problem.

* 1: Edit php.ini 
Edit your php.ini file (usually stored in /etc/php.ini or /etc/php.d/cgi/php.ini or /usr/local/etc/php.ini):

memory_limit = 32M
upload_max_filesize = 10M
post_max_size = 20M

# service httpd restart 
OR
# service lighttpd restart

2: Edit .htaccess
Edit .htaccess file in your root directory.

php_value upload_max_filesize 10M
php_value post_max_size 20M
php_value memory_limit 32M
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 # /etc/php.d/suhosin.ini
 suhosin.memory_limit=32M