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<?php
namespace RocketTheme\Toolbox\File;
use RuntimeException;
use function function_exists;
use function is_array;
use function is_object;
/**
* Implements PHP File reader.
*
* @package RocketTheme\Toolbox\File
* @author RocketTheme
* @license MIT
*/
class PhpFile extends File
{
/** @var string */
protected $extension = '.php';
/** @var static[] */
static protected $instances = [];
/**
* @param array|null $var
* @return array
*/
public function content($var = null)
{
/** @var array $content */
$content = parent::content($var);
return $content;
}
/**
* Saves PHP file and invalidates opcache.
*
* @param mixed $data Optional data to be saved, usually array.
* @return void
* @throws RuntimeException
*/
public function save($data = null)
{
parent::save($data);
// Invalidate configuration file from the opcache.
if (null !== $this->filename && function_exists('opcache_invalidate')) {
@opcache_invalidate($this->filename, true);
}
}
/**
* Check contents and make sure it is in correct format.
*
* @param mixed $var
* @return array
* @throws RuntimeException
*/
protected function check($var)
{
if (!(is_array($var) || is_object($var))) {
throw new RuntimeException('Provided data is not an array');
}
return (array)$var;
}
/**
* Encode configuration object into RAW string (PHP class).
*
* @param array $var
* @return string
* @throws RuntimeException
*/
protected function encode($var)
{
// Build the object variables string
return "<?php\nreturn {$this->encodeArray((array) $var)};\n";
}
/**
* Method to get an array as an exported string.
*
* @param array $a The array to get as a string.
* @param int $level Used internally to indent rows.
* @return string
*/
protected function encodeArray(array $a, $level = 0)
{
$r = [];
foreach ($a as $k => $v) {
if (is_array($v) || is_object($v)) {
$r[] = var_export($k, true) . ' => ' . $this->encodeArray((array) $v, $level + 1);
} else {
$r[] = var_export($k, true) . ' => ' . var_export($v, true);
}
}
$space = str_repeat(' ', $level);
return "[\n {$space}" . implode(",\n {$space}", $r) . "\n{$space}]";
}
/**
* Decode PHP file into contents.
*
* @param string $var
* @return array
*/
protected function decode($var)
{
return (array)include $this->filename;
}
}