<?php
mt_srand($_SESSION['seed']);
$str_long1 = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$str_show = 'faANNqh47O';
for ($value = 0; $value < strlen($str_show); $value++) {
echo strpos($str_long1, substr($str_show, $value, 1)) . ' ' . strpos($str_long1, substr($str_show, $value, 1)) . ' 0 61 ';
}
<?php
mt_srand(50560444);
$str_long1 = "abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
$str='';
$len1=20;
for ( $i = 0; $i < $len1; $i++ ){
$str.=substr($str_long1, mt_rand(0, strlen($str_long1) - 1), 1);
}
echo $str;
?>