defer any code in PHP

composer.json

{
    "require": {
        "opis/closure": "^2.1.0"
    }
}

exemple.php

<?php

require __DIR__ . '/vendor/autoload.php';

use Opis\Closure\SerializableClosure;

function defer ( Closure $closure, $id = null ) {
	$wrapper = new SerializableClosure( $closure );
	$serialized = serialize( $wrapper );
	// $serialized = str_replace( "\n", ' ', $serialized );
	$serialized = str_replace( '$', '\$', $serialized );
	// $serialized = addslashes( $serialized );

	// print_r($serialized);exit;

	$autoload = __DIR__ . '/vendor/autoload.php';

$raw = 'require \'' . $autoload . '\';

$serialized = <<<EOD
'.$serialized.'
EOD;

$wrapper = unserialize( $serialized );

call_user_func(
	$wrapper->getClosure()
);';

	$encoded = base64_encode( $raw );

$raw = base64_decode( $encoded );
// echo($raw."\n---\n\n");

	$script = 'eval( base64_decode( \'' . $encoded . '\' ) );';

	// exec('php -r "' . $script . '"', $output);
	// return $output;

	if ( is_string( $id ) ) {
		$script = '/* id:' . $id . ' */' . $script;
	}

	$shh = '> /dev/null 2> /dev/null &';
// $shh = '';

	exec(
		'php -r "' . $script . '" ' . $shh,
		$output
	);

	return $output;
}






// begining of how to use it
// with very crazy syntax

$var = 'plop';

$$var = function () use ( $var ) {
	return [ "{$var}-( ".microtime().' ).txt', 'hey' ];
};

$output = defer( function () use ( $plop ) {
	$files = glob( '*.txt');
	array_walk( $files, function ( $file ) { unlink("$file"); });

	file_put_contents( ...$plop() );
}, 'yolo' );

var_dump($output);