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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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declare(strict_types=1);
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namespace Dotenv\Repository\Adapter;
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use PhpOption\Option;
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use PhpOption\Some;
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final class ArrayAdapter implements AdapterInterface
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{
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    /**
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     * The variables and their values.
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     *
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     * @var array<string,string>
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     */
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    private $variables;
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    /**
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     * Create a new array adapter instance.
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     *
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     * @return void
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     */
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    private function __construct()
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    {
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        $this->variables = [];
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    }
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    /**
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     * Create a new instance of the adapter, if it is available.
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     *
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     * @return \PhpOption\Option<\Dotenv\Repository\Adapter\AdapterInterface>
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     */
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    public static function create()
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    {
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        /** @var \PhpOption\Option<AdapterInterface> */
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        return Some::create(new self());
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    }
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    /**
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     * Read an environment variable, if it exists.
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     *
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     * @param non-empty-string $name
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     *
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     * @return \PhpOption\Option<string>
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     */
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    public function read(string $name)
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    {
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        return Option::fromArraysValue($this->variables, $name);
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    }
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    /**
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     * Write to an environment variable, if possible.
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     *
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     * @param non-empty-string $name
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     * @param string           $value
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     *
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     * @return bool
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     */
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    public function write(string $name, string $value)
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    {
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        $this->variables[$name] = $value;
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        return true;
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    }
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    /**
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     * Delete an environment variable, if possible.
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     *
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     * @param non-empty-string $name
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     *
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     * @return bool
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     */
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    public function delete(string $name)
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    {
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        unset($this->variables[$name]);
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        return true;
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    }
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}