WP_Http_Encoding::compatible_gzinflate( string $gz_data ): string|false

104	public static function compatible_gzinflate( $gz_data ) {105 106		// Compressed data might contain a full header, if so strip it for gzinflate().107		if ( str_starts_with( $gz_data, "\x1f\x8b\x08" ) ) {108			$i   = 10;109			$flg = ord( substr( $gz_data, 3, 1 ) );110			if ( $flg > 0 ) {111				if ( $flg & 4 ) {112					list($xlen) = unpack( 'v', substr( $gz_data, $i, 2 ) );113					$i          = $i + 2 + $xlen;114				}115				if ( $flg & 8 ) {116					$i = strpos( $gz_data, "\0", $i ) + 1;117				}118				if ( $flg & 16 ) {119					$i = strpos( $gz_data, "\0", $i ) + 1;120				}121				if ( $flg & 2 ) {122					$i = $i + 2;123				}124			}125			$decompressed = @gzinflate( substr( $gz_data, $i, -8 ) );126			if ( false !== $decompressed ) {127				return $decompressed;128			}129		}130 131		// Compressed data from java.util.zip.Deflater amongst others.132		$decompressed = @gzinflate( substr( $gz_data, 2 ) );133		if ( false !== $decompressed ) {134			return $decompressed;135		}136 137		return false;138	}