<?php /** * LiteSpeed String Operator Library Class * * @since 1.3 */ namespace LiteSpeed ; defined( 'WPINC' ) || exit ; class Str { /** * Generate random string * * @since 1.3 * @access public * @param int $len Length of string * @param int $type 1-Number 2-LowerChar 4-UpperChar * @return string */ public static function rrand( $len, $type = 7 ) { mt_srand( ( double ) microtime() * 1000000 ) ; switch( $type ) { case 0 : $charlist = '012' ; break ; case 1 : $charlist = '0123456789' ; break ; case 2 : $charlist = 'abcdefghijklmnopqrstuvwxyz' ; break ; case 3 : $charlist = '0123456789abcdefghijklmnopqrstuvwxyz' ; break ; case 4 : $charlist = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' ; break ; case 5 : $charlist = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ' ; break ; case 6 : $charlist = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' ; break ; case 7 : $charlist = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' ; break ; } $str = '' ; $max = strlen( $charlist ) - 1 ; for( $i = 0 ; $i < $len ; $i++ ) { $str .= $charlist[ mt_rand( 0, $max ) ] ; } return $str ; } }