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Directory >> /home/whitjouh/public_html/core/vendor/vlucas/phpdotenv/src/Repository/Adapter/

File / Folder	Size	Action
.	-
AdapterInterface.php	0.338KB	edt ren
ApacheAdapter.php	1.928KB	edt ren
ArrayAdapter.php	1.572KB	edt ren
EnvConstAdapter.php	1.897KB	edt ren
GuardedWriter.php	1.831KB	edt ren
ImmutableWriter.php	2.482KB	edt ren
MultiReader.php	0.946KB	edt ren
MultiWriter.php	1.27KB	edt ren
PutenvAdapter.php	1.849KB	edt ren
ReaderInterface.php	0.293KB	edt ren
ReplacingWriter.php	2.159KB	edt ren
ServerConstAdapter.php	1.912KB	edt ren
WriterInterface.php	0.506KB	edt ren

<?php

declare(strict_types=1);

namespace Dotenv\Repository\Adapter;

final class ImmutableWriter implements WriterInterface
{
    /**
     * The inner writer to use.
     *
     * @var \Dotenv\Repository\Adapter\WriterInterface
     */
    private $writer;

/**
     * The inner reader to use.
     *
     * @var \Dotenv\Repository\Adapter\ReaderInterface
     */
    private $reader;

/**
     * The record of loaded variables.
     *
     * @var array<string,string>
     */
    private $loaded;

/**
     * Create a new immutable writer instance.
     *
     * @param \Dotenv\Repository\Adapter\WriterInterface $writer
     * @param \Dotenv\Repository\Adapter\ReaderInterface $reader
     *
     * @return void
     */
    public function __construct(WriterInterface $writer, ReaderInterface $reader)
    {
        $this->writer = $writer;
        $this->reader = $reader;
        $this->loaded = [];
    }

/**
     * Write to an environment variable, if possible.
     *
     * @param non-empty-string $name
     * @param string           $value
     *
     * @return bool
     */
    public function write(string $name, string $value)
    {
        // Don't overwrite existing environment variables
        // Ruby's dotenv does this with `ENV[key] ||= value`
        if ($this->isExternallyDefined($name)) {
            return false;
        }

// Set the value on the inner writer
        if (!$this->writer->write($name, $value)) {
            return false;
        }

// Record that we have loaded the variable
        $this->loaded[$name] = '';

return true;
    }

/**
     * Delete an environment variable, if possible.
     *
     * @param non-empty-string $name
     *
     * @return bool
     */
    public function delete(string $name)
    {
        // Don't clear existing environment variables
        if ($this->isExternallyDefined($name)) {
            return false;
        }

// Clear the value on the inner writer
        if (!$this->writer->delete($name)) {
            return false;
        }

// Leave the variable as fair game
        unset($this->loaded[$name]);

return true;
    }

/**
     * Determine if the given variable is externally defined.
     *
     * That is, is it an "existing" variable.
     *
     * @param non-empty-string $name
     *
     * @return bool
     */
    private function isExternallyDefined(string $name)
    {
        return $this->reader->read($name)->isDefined() && !isset($this->loaded[$name]);
    }
}