Please help in .htaccess

Hello All,

I want to increase file upload size , but in local it's working fine.
When i upload into production server it's throwing 500 error.

my .htaccess is as below.

RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php
RewriteCond %{HTTP_HOST} !^www\.domain\.com$
RewriteRule (.*) http://www.domain.com/$1 [R=301,L]

php_value upload_max_filesize 20M
php_value post_max_size 20M
php_value max_execution_time 200
php_value max_input_time 200

<IfModule mod_expires.c>
<FilesMatch "\.(gif|jpg|jpeg|png|swf|html?|xml|txt)$">
ExpiresActive On
ExpiresDefault "access plus 10 years"
</FilesMatch>
</IfModule>
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
<IfModule !mod_expires.c>
RewriteCond %{REQUEST_FILENAME} -f
RewriteRule ^(.*\.(gif|jpg|jpeg|png|swf|html?|xml|txt))$ smartoptimizer/?$1
</IfModule>
</IfModule>
<FilesMatch "\.(gif|jpg|jpeg|png|swf|html?|xml|txt)$">
FileETag none
</FilesMatch>
#Options All


Please help on this.

Thanks in Advance.

 

Does your server allow overriding php params via htaccess? Just to be sure, echo out the values in a php script to be sure they are being set properly. For example, set your max size to a weird value like 23 and echo out the variable to see if it reports as 23