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<?php |
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namespace Spatie\Php7to5; |
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use PhpParser\NodeTraverser; |
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use PhpParser\ParserFactory; |
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use Spatie\Php7to5\Exceptions\InvalidParameter; |
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class Converter |
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{ |
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/** @var string */ |
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protected $pathToPhp7Code; |
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/** |
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* @param string $pathToPhp7Code |
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* |
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* @throws \Spatie\Php7to5\Exceptions\InvalidParameter |
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*/ |
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public function __construct($pathToPhp7Code) |
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{ |
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if (!file_exists($pathToPhp7Code)) { |
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throw InvalidParameter::fileDoesNotExist($pathToPhp7Code); |
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} |
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$this->pathToPhp7Code = $pathToPhp7Code; |
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} |
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/** |
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* @param string $destination |
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*/ |
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public function saveAsPhp5($destination) |
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{ |
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file_put_contents($destination, $this->getPhp5Code()); |
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} |
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/** |
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* @return string |
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*/ |
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public function getPhp5Code() |
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{ |
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ini_set('xdebug.max_nesting_level', 9000); |
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$parser = (new ParserFactory())->create(ParserFactory::PREFER_PHP7); |
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$php7code = file_get_contents($this->pathToPhp7Code); |
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$php7Statements = $parser->parse($php7code); |
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$traverser = $this->getTraverser(); |
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$php5Statements = $traverser->traverse($php7Statements); |
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return (new \PhpParser\PrettyPrinter\Standard())->prettyPrintFile($php5Statements); |
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} |
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/** |
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* @return \PhpParser\NodeTraverser |
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*/ |
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public static function getTraverser() |
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{ |
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$traverser = new NodeTraverser(); |
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foreach (glob(__DIR__.'/NodeVisitors/*.php') as $nodeVisitorFile) { |
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$className = pathinfo($nodeVisitorFile, PATHINFO_FILENAME); |
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$fullClassName = '\\Spatie\\Php7to5\\NodeVisitors\\'.$className; |
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$traverser->addVisitor(new $fullClassName()); |
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} |
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return $traverser; |
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} |
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} |
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spatie /
7to5
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.