PHP -简单的32个字符随即串生成

code

　　

<?php  
 $array1 = array(0,1,2,3,4,5,6,7,8,9,'q','w','e','r','t','y','u','i','o','p','a','s','d','f','g','h','j','k','l','z','x','c','v','b','n','m','Q','W','E','R','T','Y','U','I','O','P','M','N','B','V','C','X','Z','A','S','D','F','G','H','J','K','L');
$i= 0;
$str = null;
while ( $i<= 31) {
    $str .= $array1[array_rand($array1,1)];
    $i++;
 
}
echo $str;
?>