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<?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;
	}


}