PHP random number code example:
- < ?php
- class getRandstrClass{
- function getCode ($length = 32, $mode = 0) {
- switch ($mode) {
- case '1':
- $str = '1234567890';
- break;
- case '2':
- $str = 'abcdefghijklmnopqrstuvwxyz';
- break;
- case '3':
- $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
- break;
- case '4':
- $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZa
bcdefghijklmnopqrstuvwxyz';break; - case '5':
- $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
- break;
- case '6':
- $str = 'abcdefghijklmnopqrstuvwxyz1234567890';
- break;
- default:
- $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcde
fghijklmnopqrstuvwxyz1234567890'; - break;
- }
- $randString = '';
- $len = strlen($str)-1;
- for($i = 0;$i < $length;$i ++){
- $num = mt_rand(0, $len);
- $randString .= $str[$num];
- }
- return $randString ;
- }
- }
- /* 使用方法
- $code = new getRandstrClass();
- $length = 4;
- $mode = 0;
- $str = $code->getCode($length, $mode);
- echo $str;
-
$code = NULL;
- */
-
?>
以上这段代码就是PHP随机数类的具体使用方法。
http://www.bkjia.com/PHPjc/446042.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/446042.htmlTechArticlePHP随机数类代码示例: ?php classgetRandstrClass{ functiongetCode($ length = 32 ,$ mode = 0 ){ switch($mode){ case'1': $ str = '1234567890' ; break; case'2': $ str = 'abcde...
Statement:The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn