3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class SourceTransformingLoader extends php_user_filter { /** * Php filter definition */ const PHP_FILTER_READ = 'php://filter/read='; /** * Default PHP filter name for registration */ const FILTER_IDENTIFIER = 'go.source.transforming.loader'; /** * String buffer * * @var string */ protected $data = ''; /** * Identifier of filter * * @var string */ protected static $filterId; /** * Register current loader as stream filter in PHP * * @param string $filterId Identifier for the filter * @throws \RuntimeException If registration was failed */ public static function register($filterId = self::FILTER_IDENTIFIER) { if (!empty(self::$filterId)) { throw new RuntimeException('Stream filter already registered'); } $result = stream_filter_register($filterId, __CLASS__); if (!$result) { throw new RuntimeException('Stream filter was not registered'); } self::$filterId = $filterId; } /** * {@inheritdoc} */ public function filter($in, $out, &$consumed, $closing) { while ($bucket = stream_bucket_make_writeable($in)) { $this->data .= $bucket->data; } if ($closing || feof($this->stream)) { $consumed = strlen($this->data); $bucket = stream_bucket_new($this->stream, $this->data); stream_bucket_append($out, $bucket); return PSFS_PASS_ON; } return PSFS_FEED_ME; } } SourceTransformingLoader::register(); echo file_get_contents('php://filter/read=go.source.transforming.loader/resource=' . __FILE__);
Output for 5.3.0 - 5.4.45
<?php class SourceTransformingLoader extends php_user_filter { /** * Php filter definition */ const PHP_FILTER_READ = 'php://filter/read='; /** * Default PHP filter name for registration */ const FILTER_IDENTIFIER = 'go.source.transforming.loader'; /** * String buffer * * @var string */ protected $data = ''; /** * Identifier of filter * * @var string */ protected static $filterId; /** * Register current loader as stream filter in PHP * * @param string $filterId Identifier for the filter * @throws \RuntimeException If registration was failed */ public static function register($filterId = self::FILTER_IDENTIFIER) { if (!empty(self::$filterId)) { throw new RuntimeException('Stream filter already registered'); } $result = stream_filter_register($filterId, __CLASS__); if (!$result) { throw new RuntimeException('Stream filter was not registered'); } self::$filterId = $filterId; } /** * {@inheritdoc} */ public function filter($in, $out, &$consumed, $closing) { while ($bucket = stream_bucket_make_writeable($in)) { $this->data .= $bucket->data; } if ($closing || feof($this->stream)) { $consumed = strlen($this->data); $bucket = stream_bucket_new($this->stream, $this->data); stream_bucket_append($out, $bucket); return PSFS_PASS_ON; } return PSFS_FEED_ME; } } SourceTransformingLoader::register(); echo file_get_contents('php://filter/read=go.source.transforming.loader/resource=' . __FILE__);