If you're using Spiral Framework 3.x, you might notice that there aren't any built-in tools for dumping variables.
However, you can use third-party packages like symfony/var-dumper for dumping variables. If you want to dump the
contents of your variables to the RoadRunner error log, you can create a function like the one shown in the example below:
<?php
declare(strict_types=1);
use Symfony\Component\VarDumper\Caster\ReflectionCaster;
use Symfony\Component\VarDumper\Cloner\VarCloner;
use Symfony\Component\VarDumper\Dumper\CliDumper;
use Symfony\Component\VarDumper\VarDumper;
if (!\function_exists('dumprr')) {
/**
* Dump value int STDERR.
*/
function dumprr(mixed $value, mixed ...$values): mixed
{
$previous = $_SERVER['VAR_DUMPER_FORMAT'] ?? false;
unset($_SERVER['VAR_DUMPER_FORMAT']);
if (!\defined('STDERR')) {
\define('STDERR', \fopen('php://stderr', 'wb'));
}
static $dumper = new CliDumper(STDERR);
//
// Output modifiers
//
$cloner = new VarCloner();
// remove File and Line definitions from a custom closure dump
/** @psalm-suppress InvalidArgument */
$cloner->addCasters(ReflectionCaster::UNSET_CLOSURE_FILE_INFO);
// Set new handler and store previous one
$prevent = VarDumper::setHandler(static fn ($value) => $dumper->dump($cloner->cloneVar($value)));
$result = VarDumper::dump($value);
foreach ($values as $v) {
VarDumper::dump($v);
}
// Reset handler
VarDumper::setHandler($prevent);
if ($previous) {
$_SERVER['VAR_DUMPER_FORMAT'] = $previous;
}
return $result;
}
}
Note
Thespiral/appcontainssymfony/var-dumperpackage, and there's also a helpful functiondumprrthat you can use.