wikimedia / mediawiki

								fseek( $fh, self::$crcSize, SEEK_CUR );

								continue;

							}

						} else {

							wfDebug( __METHOD__ . ' Skipping compressed png iTXt chunk due to lack of zlib,'

								. " or potentially invalid compression method\n" );

							fseek( $fh, self::$crcSize, SEEK_CUR );

							continue;

						}

					}

					$finalKeyword = self::$textChunks[$items[1]];

					$text[$finalKeyword][$items[3]] = $items[5];

					}

					$compression = substr( $postKeyword, 0, 1 );

					$content = substr( $postKeyword, 1 );

					if ( $compression !== "\x00" ) {

						wfDebug( __METHOD__ . " Unrecognized compression method in zTXt ($keyword). Skipping.\n" );

						fseek( $fh, self::$crcSize, SEEK_CUR );

						continue;

					}

					MediaWiki\suppressWarnings();

					$content = gzuncompress( $content );