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<?php
/**
* parser for serialized expression
*/
namespace xKerman\Restricted;
* Parser for serialized PHP values
class ExpressionParser implements ParserInterface
{
* parse given `$source` as PHP serialized value
*
* @param Source $source parser input
* @return array
* @throws UnserializeFailedException
public function parse(Source $source)
$parser = $this->createParser($source);
list($result, $source) = $parser->parse($source);
return array($result, $source);
}
* create parser for given input
* @param Source $source input
* @return ParserInterface
private function createParser($source)
switch ($source->peek()) {
case 'N':
return new NullParser();
case 'b':
return new TypeConvertParser(
new RegexpSubstringParser('/\Gb:[01];/', 2, 1),
new BooleanConverter()
);
case 'i':
return new IntegerParser();
case 'd':
return new FloatParser();
case 's':
return new StringParser();
case 'a':
return new ArrayParser();
default:
return $source->triggerError();
xKerman /
restricted-unserialize
