(PHP 4 , PHP 5)

ini_get -- Gets the value of a configuration option


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.

Our php.ini contains the following settings:

display_errors = On
register_globals = Off
post_max_size = 8M

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


This script will produce:

display_errors = 1
register_globals = 0
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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