ShapeFile\Util

Complexity

Total Complexity

8

Size/Duplication

Total Lines	56
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Test Coverage

Coverage

94.74%

Importance

Changes	7
Bugs	0	Features	0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	loadData()	0	7	3
A	packDouble()	0	13	3
A	swap()	0	8	2

<?php
/**
 * phpMyAdmin ShapeFile library
 * <https://github.com/phpmyadmin/shapefile/>
 *
 * Copyright 2006-2007 Ovidio <ovidio AT users.sourceforge.net>
 * Copyright 2016 Michal Čihař <michal@cihar.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you can download one from
 * https://www.gnu.org/copyleft/gpl.html.
 */
namespace ShapeFile;

class Util {
    private static $little_endian = null;

    /**
     * Reads data
     *
     * @param string $type type for unpack()
     * @param string $data Data to process
     *
     * @return mixed
     */
    public static function loadData($type, $data) {
        if ($data === false || strlen($data) == 0) {
            return false;
        }
        $tmp = unpack($type, $data);
        return current($tmp);
    }

    /**
     * Changes endianity
     *
     * @param string $binValue Binary value
     *
     * @return string
     */
    public static function swap($binValue) {
        $result = $binValue{strlen($binValue) - 1};
        for ($i = strlen($binValue) - 2; $i >= 0; $i--) {
            $result .= $binValue{$i};
        }

        return $result;
    }

    /**
     * Encodes double value to correct endianity
     *
     * @param double $value Value to pack
     *
     * @return string
     */
    public static function packDouble($value) {
        $bin = pack("d", (double) $value);

        if (is_null(self::$little_endian)) {
            self::$little_endian = (pack('L', 1) == pack('V', 1));
        }

        if (self::$little_endian) {
            return $bin;
        } else {
            return self::swap($bin);
        }
    }
}