POMO_Reader

12	#[AllowDynamicProperties]13	class POMO_Reader {14 15		public $endian = 'little';16		public $_pos;17		public $is_overloaded;18 19		/**20		 * PHP5 constructor.21		 */22		public function __construct() {23			if ( function_exists( 'mb_substr' )24				&& ( (int) ini_get( 'mbstring.func_overload' ) & 2 ) // phpcs:ignore PHPCompatibility.IniDirectives.RemovedIniDirectives.mbstring_func_overloadDeprecated25			) {26				$this->is_overloaded = true;27			} else {28				$this->is_overloaded = false;29			}30 31			$this->_pos = 0;32		}33 34		/**35		 * PHP4 constructor.36		 *37		 * @deprecated 5.4.0 Use __construct() instead.38		 *39		 * @see POMO_Reader::__construct()40		 */41		public function POMO_Reader() {42			_deprecated_constructor( self::class, '5.4.0', static::class );43			self::__construct();44		}45 46		/**47		 * Sets the endianness of the file.48		 *49		 * @param string $endian Set the endianness of the file. Accepts 'big', or 'little'.50		 */51		public function setEndian( $endian ) { // phpcs:ignore WordPress.NamingConventions.ValidFunctionName.MethodNameInvalid52			$this->endian = $endian;53		}54 55		/**56		 * Reads a 32bit Integer from the Stream57		 *58		 * @return mixed The integer, corresponding to the next 32 bits from59		 *  the stream of false if there are not enough bytes or on error60		 */61		public function readint32() {62			$bytes = $this->read( 4 );63			if ( 4 !== $this->strlen( $bytes ) ) {64				return false;65			}66			$endian_letter = ( 'big' === $this->endian ) ? 'N' : 'V';67			$int           = unpack( $endian_letter, $bytes );68			return reset( $int );69		}70 71		/**72		 * Reads an array of 32-bit Integers from the Stream73		 *74		 * @param int $count How many elements should be read75		 * @return mixed Array of integers or false if there isn't76		 *  enough data or on error77		 */78		public function readint32array( $count ) {79			$bytes = $this->read( 4 * $count );80			if ( 4 * $count !== $this->strlen( $bytes ) ) {81				return false;82			}83			$endian_letter = ( 'big' === $this->endian ) ? 'N' : 'V';84			return unpack( $endian_letter . $count, $bytes );85		}86 87		/**88		 * @param string $input_string89		 * @param int    $start90		 * @param int    $length91		 * @return string