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115 lines
3.6 KiB
115 lines
3.6 KiB
<?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\VarExporter; |
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use Symfony\Component\VarExporter\Exception\ExceptionInterface; |
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use Symfony\Component\VarExporter\Internal\Exporter; |
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use Symfony\Component\VarExporter\Internal\Hydrator; |
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use Symfony\Component\VarExporter\Internal\Registry; |
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use Symfony\Component\VarExporter\Internal\Values; |
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/** |
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* Exports serializable PHP values to PHP code. |
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* |
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* VarExporter allows serializing PHP data structures to plain PHP code (like var_export()) |
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* while preserving all the semantics associated with serialize() (unlike var_export()). |
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* |
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* By leveraging OPcache, the generated PHP code is faster than doing the same with unserialize(). |
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* |
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* @author Nicolas Grekas <p@tchwork.com> |
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*/ |
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final class VarExporter |
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{ |
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/** |
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* Exports a serializable PHP value to PHP code. |
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* |
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* @param mixed $value The value to export |
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* @param bool &$isStaticValue Set to true after execution if the provided value is static, false otherwise |
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* @param bool &$classes Classes found in the value are added to this list as both keys and values |
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* |
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* @throws ExceptionInterface When the provided value cannot be serialized |
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*/ |
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public static function export($value, bool &$isStaticValue = null, array &$foundClasses = []): string |
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{ |
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$isStaticValue = true; |
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if (!\is_object($value) && !(\is_array($value) && $value) && !\is_resource($value) || $value instanceof \UnitEnum) { |
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return Exporter::export($value); |
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} |
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$objectsPool = new \SplObjectStorage(); |
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$refsPool = []; |
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$objectsCount = 0; |
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try { |
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$value = Exporter::prepare([$value], $objectsPool, $refsPool, $objectsCount, $isStaticValue)[0]; |
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} finally { |
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$references = []; |
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foreach ($refsPool as $i => $v) { |
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if ($v[0]->count) { |
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$references[1 + $i] = $v[2]; |
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} |
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$v[0] = $v[1]; |
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} |
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} |
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if ($isStaticValue) { |
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return Exporter::export($value); |
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} |
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$classes = []; |
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$values = []; |
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$states = []; |
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foreach ($objectsPool as $i => $v) { |
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[, $class, $values[], $wakeup] = $objectsPool[$v]; |
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$foundClasses[$class] = $classes[] = $class; |
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if (0 < $wakeup) { |
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$states[$wakeup] = $i; |
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} elseif (0 > $wakeup) { |
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$states[-$wakeup] = [$i, array_pop($values)]; |
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$values[] = []; |
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} |
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} |
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ksort($states); |
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$wakeups = [null]; |
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foreach ($states as $k => $v) { |
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if (\is_array($v)) { |
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$wakeups[-$v[0]] = $v[1]; |
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} else { |
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$wakeups[] = $v; |
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} |
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} |
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if (null === $wakeups[0]) { |
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unset($wakeups[0]); |
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} |
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$properties = []; |
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foreach ($values as $i => $vars) { |
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foreach ($vars as $class => $values) { |
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foreach ($values as $name => $v) { |
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$properties[$class][$name][$i] = $v; |
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} |
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} |
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} |
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if ($classes || $references) { |
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$value = new Hydrator(new Registry($classes), $references ? new Values($references) : null, $properties, $value, $wakeups); |
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} else { |
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$isStaticValue = true; |
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} |
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return Exporter::export($value); |
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} |
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}
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