* @copyright 2012-2014 Romanenko Sergey / Awilum * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ class Number { /** * Protected constructor since this is a static class. * * @access protected */ protected function __construct() { // Nothing here } /** * Convert bytes in 'KB','MB','GB','TiB','PiB' * *


     *      echo Number::byteFormat(10000);
     *

* * @param integer $size Data to convert * @return string */ public static function byteFormat($size) { // Redefine vars $size = (int) $size; $unit = array('B', 'KB', 'MB', 'GB', 'TiB', 'PiB'); return @round($size/pow(1024, ($i=floor(log($size, 1024)))), 2).' '.$unit[($i < 0 ? 0 : $i)]; } /** * Convert 'KB','MB','GB' in bytes * *


     *      echo Number::convertToBytes('10MB');
     *

* * @param string $num Number to convert * @return int */ public static function convertToBytes( $num ) { $num = strtolower( $num ); $bytes = (int) $num; if ( strpos( $num, 'k' ) !== false ) $bytes = intval( $num ) * 1024; elseif ( strpos( $num, 'm' ) !== false ) $bytes = intval($num) * 1024 * 1024; elseif ( strpos( $num, 'g' ) !== false ) $bytes = intval( $num ) * 1024 * 1024 * 1024; return $bytes; } /** * Converts a number into a more readable human-type number. * *


     *      echo Number::quantity(7000); // 7K
     *      echo Number::quantity(7500); // 8K
     *      echo Number::quantity(7500, 1); // 7.5K
     *

* * @param integer $num Num to convert * @param integer $decimals Decimals * @return string */ public static function quantity($num, $decimals = 0) { // Redefine vars $num = (int) $num; $decimals = (int) $decimals; if ($num >= 1000 && $num < 1000000) { return sprintf('%01.'.$decimals.'f', (sprintf('%01.0f', $num) / 1000)).'K'; } elseif ($num >= 1000000 && $num < 1000000000) { return sprintf('%01.'.$decimals.'f', (sprintf('%01.0f', $num) / 1000000)).'M'; } elseif ($num >= 1000000000) { return sprintf('%01.'.$decimals.'f', (sprintf('%01.0f', $num) / 1000000000)).'B'; } return $num; } /** * Checks if the value is between the minimum and maximum (min & max included). * *


     *      if (Number::between(2, 10, 5)) {
     *          // do something...
     *      }
     *

* * @param float $minimum The minimum. * @param float $maximum The maximum. * @param float $value The value to validate. * @return boolean */ public static function between($minimum, $maximum, $value) { return ((float) $value >= (float) $minimum && (float) $value <= (float) $maximum); } /** * Checks the value for an even number. * *


     *      if (Number::even(2)) {
     *          // do something...
     *      }
     *

* * @param integer $value The value to validate. * @return boolean */ public static function even($value) { return (((int) $value % 2) == 0); } /** * Checks if the value is greather than a given minimum. * *


     *      if (Number::greaterThan(2, 10)) {
     *          // do something...
     *      }
     *

* * @param float $minimum The minimum as a float. * @param float $value The value to validate. * @return boolean */ public static function greaterThan($minimum, $value) { return ((float) $value > (float) $minimum); } /** * Checks if the value is smaller than a given maximum. * *


     *      if (Number::smallerThan(2, 10)) {
     *          // do something...
     *      }
     *

* * @param integer $maximum The maximum. * @param integer $value The value to validate. * @return boolean */ public static function smallerThan($maximum, $value) { return ((int) $value < (int) $maximum); } /** * Checks if the value is not greater than or equal a given maximum. * *


     *      if (Number::maximum(2, 10)) {
     *          // do something...
     *      }
     *

* * @param integer $maximum The maximum. * @param integer $value The value to validate. * @return boolean */ public static function maximum($maximum, $value) { return ((int) $value <= (int) $maximum); } /** * Checks if the value is greater than or equal to a given minimum. * *


     *      if (Number::minimum(2, 10)) {
     *          // do something...
     *      }
     *

* * @param integer $minimum The minimum. * @param integer $value The value to validate. * @return boolean */ public static function minimum($minimum, $value) { return ((int) $value >= (int) $minimum); } /** * Checks the value for an odd number. * *


     *      if (Number::odd(2)) {
     *          // do something...
     *      }
     *

* * @param integer $value The value to validate. * @return boolean */ public static function odd($value) { return ! Number::even((int) $value); } }