再来个随机字符串
- PHP中文网Original
- 2016-05-25 17:12:02939browse
php代码
function str_rand($length)//随机字符，参数是长度
{
if(empty($length))
return NULL;
$a = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz';
$rand_str = '';
for($i=0;$i<$length;++$i)
{
$rand_str .= $a[rand(0,61)];
}
return $rand_str;
}
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