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Yaf_Config_Ini::get	Yaf_Config_Ini::key

Yaf_Config_Ini	Last updated: Mon, 26 Oct 2026

Yaf_Config_Ini::__isset

(Yaf >=1.0.0)

Yaf_Config_Ini::__isset — Check if a key exists

Description

public function Yaf_Config_Ini::__isset(string $name): bool

Checks whether a configuration key exists. This method is invoked when isset() is used on a configuration object.

Parameters

name: The configuration key to check.

Return Values

Returns true if the key exists, false otherwise.

Examples

Example #1 Yaf_Config_Ini::__isset() example

<?php
/**
 * Assume /etc/myapp/application.ini contains:
 * [common]
 * application.name = "MyApp"
 * database.host    = "localhost"
 * database.port    = 3306
 */
$config = new Yaf_Config_Ini('/etc/myapp/application.ini', 'common');

var_dump(isset($config->database));
var_dump($config->__isset('database'));
var_dump(isset($config->cache));
?>

The above example will output something similar to:

bool(true)
bool(true)
bool(false)

See Also

Yaf_Config_Ini::get() - Retrieve a configuration value
Yaf_Config_Ini::offsetExists() - Check if a key exists (ArrayAccess)

Yaf_Config_Ini::get	Yaf_Config_Ini::key

Yaf_Config_Ini	Last updated: Mon, 26 Oct 2026