PHP randomly generates n-digit string_PHP tutorial

//随机生成n位字符串

function rand_str($num){

$str = "qwertyuioplkjhgfdsazxcvbnmQAZWSXEDCRFVTGBYHNUJMIKOLP1234567890";

$str_len = strlen($str)-1;

//echo $str_len;

$s='';

for ($i = 0; $i

$s.=$str[rand(0, $str_len)];

}

echo $s;

}

rand_str(32);

?>

// Randomly generate n-digit string

function rand_str($num){

$str = "qwertyuioplkjhgfdsazxcvbnmQAZWSXEDCRFVTGBYHNUJMIKOLP1234567890"; $str_len = strlen($str)-1; //echo $str_len; $s=''; for ($i = 0; $i $s.=$str[rand(0, $str_len)];

} echo $s;

} rand_str(32); ?>

http://www.bkjia.com/PHPjc/742405.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/742405.htmlTechArticle//Randomly generate n-digit string functionrand_str($num){ $str = "qwertyuioplkjhgfdsazxcvbnmQAZWSXEDCRFVTGBYHNUJMIKOLP1234567890"; $str_len = strlen($str)-1; //echo $str_len; $s=''; for(...