ini_get
(PHP 4, PHP 5, PHP 7, PHP 8)
ini_get — Gets the value of a configuration option
Beschreibung
$option): string|falseReturns the value of the configuration option on success.
Parameter-Liste
-
option -
The configuration option name.
Rückgabewerte
Returns the value of the configuration option as a string on success, or an
empty string for null values. Returns false if the
configuration option doesn't exist.
Beispiele
Beispiel #1 A few ini_get() examples
<?php
/*
Our php.ini contains the following settings:
display_errors = On
register_globals = Off
post_max_size = 8M
*/
echo 'display_errors = ' . ini_get('display_errors') . "\n";
echo 'register_globals = ' . ini_get('register_globals') . "\n";
echo 'post_max_size = ' . ini_get('post_max_size') . "\n";
echo 'post_max_size+1 = ' . (ini_get('post_max_size')+1) . "\n";
echo 'post_max_size in bytes = ' . return_bytes(ini_get('post_max_size'));
function return_bytes($val) {
$val = trim($val);
$last = strtolower($val[strlen($val)-1]);
switch($last) {
// The 'G' modifier is available
case 'g':
$val *= 1024;
case 'm':
$val *= 1024;
case 'k':
$val *= 1024;
}
return $val;
}
?>
Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:
display_errors = 1 register_globals = 0 post_max_size = 8M post_max_size+1 = 9 post_max_size in bytes = 8388608
Anmerkungen
Hinweis: When querying boolean values
A boolean ini value of
offwill be returned as an empty string or "0" while a boolean ini value ofonwill be returned as "1". The function can also return the literal string of INI value.
Hinweis: 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 example above shows one way to convert shorthand notation into bytes, much like how the PHP source does it.
Hinweis:
ini_get() can't read "array" ini options such as pdo.dsn.*, and returns
falsein this case.
Siehe auch
- get_cfg_var() - Liefert den Wert einer Konfigurationsoption
- ini_get_all() - Gets all configuration options
- ini_restore() - Restores the value of a configuration option
- ini_set() - Sets the value of a configuration option
