ini_get
(PHP 4, PHP 5, PHP 7, PHP 8)
ini_get — Gets the value of a configuration option
Parameters
option-
The configuration option name.
Return Values
Returns the value of the configuration option as a string on success, or an
empty string for null values. Returns false if the
configuration option doesn't exist.
Examples
Example #1 A few ini_get() examples
<?php
/*
Our php.ini contains the following settings:
display_errors = On
opcache.enable_cli = Off
post_max_size = 8M
*/
echo 'display_errors = ' . ini_get('display_errors') . "\n";
echo 'opcache.enable_cli = ' . (int) ini_get('opcache.enable_cli') . "\n";
echo 'post_max_size = ' . ini_get('post_max_size') . "\n";
echo 'post_max_size + 1 = ' . (rtrim(ini_get('post_max_size'), 'KMG') + 1) . "\n";
echo 'post_max_size in bytes = ' . ini_parse_quantity(ini_get('post_max_size'));
?>
The above example will output
something similar to:
display_errors = 1
opcache.enable_cli = 0
post_max_size = 8M
post_max_size+1 = 9
post_max_size in bytes = 8388608
Notes
Note:
When querying boolean values
A boolean ini value of off will be returned as an
empty string or "0" while a boolean ini value of on will
be returned as "1".
The function can also return the literal string of INI value.
Note:
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 and NOT its int
equivalent. Attempting normal arithmetic functions on these values
will not have otherwise expected results. The
ini_parse_quantity() function can be used to convert
the shorthand notation into bytes.
Note:
ini_get() can't read "array" ini options such as
pdo.dsn.*, and returns false in this case.
ini_alter
PHP Options/Info Functions