Tips
rand_string Código PHP:
<?php
function rand_string($len, $chars = 'qwertyuiopasdfghjklzxcvbnm1234567890')
{
$string = '';
for ($i = 0; $i < $len; $i++)
{
$pos = rand(0, strlen($chars)-1);
$string .= $chars{$pos};
}
return $string;
}
echo 'String al Azar de 3 Caracteres : '.rand_string(3) . '<br>' ;
echo 'String al Azar de 6 Caracteres : '.rand_string(6) . '<br>' ;
echo 'String al Azar de 9 Caracteres : '.rand_string(9) . '<br>' ;
?>