37 lines
906 B
PHP
37 lines
906 B
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Console\SignalRegistry;
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/**
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* @author Grégoire Pineau <lyrixx@lyrixx.info>
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*/
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class SignalMap
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{
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private static array $map;
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public static function getSignalName(int $signal): ?string
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{
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if (!\extension_loaded('pcntl')) {
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return null;
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}
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if (!isset(self::$map)) {
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$r = new \ReflectionExtension('pcntl');
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$c = $r->getConstants();
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$map = array_filter($c, fn ($k) => str_starts_with($k, 'SIG') && !str_starts_with($k, 'SIG_'), \ARRAY_FILTER_USE_KEY);
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self::$map = array_flip($map);
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}
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return self::$map[$signal] ?? null;
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}
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}
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