ini_get

Gets the value of a configuration option (PHP 4 )
string ini_get ( string varname )

Returns the value of the configuration option on success. Failure, such as querying for a non-existant value, will return an empty string.

When querying boolean values:

A boolean ini value of off will be returned as an empty string while a boolean ini value of on will be returned as "1".

When querying memory size values:

Many ini memory size values, such as upload_max_filesize are stored in the php.ini file in shorthand notation. ini_get() will return the exact string stored in the php.ini file, NOT its integer equivalent. Attempting normal arithmetic functions on these values will not have otherwise expected results.

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<?php
/*
Our php.ini contains the following settings:

display_errors = On
register_globals = Off
post_max_size = 8M
*/

print 'display_errors = ' . ini_get('display_errors') . "\n";
print 'register_globals = ' . ini_get('register_globals') . "\n";
print 'post_max_size = ' . ini_get('post_max_size') . "\n";
print 'post_max_size+1 = ' . (ini_get('post_max_size')+1) . "\n";

/*
This script will produce:

display_errors = 1
register_globals =
post_max_size = 8M
post_max_size+1 = 9
*/
?>

See also get_cfg_var(), ini_get_all(), ini_restore(), and ini_set().

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