62 lines
1.1 KiB
PHP
62 lines
1.1 KiB
PHP
<?php
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namespace Dotenv\Environment;
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use ArrayAccess;
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/**
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* This environment variables interface.
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*/
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interface VariablesInterface extends ArrayAccess
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{
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/**
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* Determine if the environment is immutable.
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*
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* @return bool
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*/
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public function isImmutable();
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/**
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* Tells whether environment variable has been defined.
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*
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* @param string $name
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*
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* @return bool
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*/
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public function has($name);
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/**
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* Get an environment variable.
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*
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* @param string $name
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*
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* @throws \InvalidArgumentException
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*
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* @return string|null
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*/
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public function get($name);
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/**
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* Set an environment variable.
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*
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* @param string $name
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* @param string|null $value
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*
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* @throws \InvalidArgumentException
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*
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* @return void
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*/
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public function set($name, $value = null);
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/**
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* Clear an environment variable.
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*
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* @param string $name
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*
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* @throws \InvalidArgumentException
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*
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* @return void
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*/
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public function clear($name);
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}
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