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April 14, 2024 04:31
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serialize a closure in php
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<?php | |
class ReflectionClosure extends ReflectionFunction | |
{ | |
const string REGEX_PATTERN = '/function\s*\(\s*(.*?)\s*\)\s*(?:use\s*\(([^)]*)\)\s*)?{\s*(.*?)\s*}/s'; | |
public function getCode(): string | |
{ | |
$startLine = $this->getStartLine(); | |
$endLine = $this->getEndLine(); | |
$code = implode("\n", array_slice(file($this->getFileName()), $startLine - 1, $endLine + 1)); | |
preg_match(self::REGEX_PATTERN, $code, $matches); | |
return $matches[0]; | |
} | |
} | |
class SerializeClosure | |
{ | |
private string $code; | |
private array $usesVariable; | |
public function __construct(Closure $closure) | |
{ | |
$reflectionClosure = new ReflectionClosure($closure); | |
$this->code = $reflectionClosure->getCode(); | |
$this->usesVariable = $reflectionClosure->getClosureUsedVariables(); | |
} | |
public function __serialize(): array | |
{ | |
return [ | |
'code' => $this->code, | |
'use' => $this->usesVariable | |
]; | |
} | |
public function __unserialize(array $data): void | |
{ | |
$this->code = $data['code']; | |
$this->usesVariable = $data['use']; | |
} | |
public function getClosure(): Closure | |
{ | |
extract($this->usesVariable); | |
return eval("return $this->code;"); | |
} | |
} | |
$name = 'Dilo surucu'; | |
$serializeClosure = new SerializeClosure( | |
function () use ($name) { | |
return $name; | |
}); | |
$serialize = serialize($serializeClosure); | |
/** | |
* @var $unserialize SerializeClosure | |
*/ | |
$unserialize = unserialize($serialize, ['allowed_classes' => true]); | |
$closure = $unserialize->getClosure(); | |
echo $closure();//Dilo surucu |
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