SHA Encryptions in php : 

<?php

  $pass = '1264645634568345';

$enc_pass = sha1($pass);

  $pass1 = rand(100,999);

  $enc_pass1 = sha1($pass1);

  $pass_time = time();

  $enc_time1 = sha1($pass_time);

  $pass_date = date("Y-m-d");;

  $enc_date = sha1($pass_date);

  echo $enc_pass."<hr>";

  echo $enc_pass1."<hr>";

  echo $enc_time1."<hr>";

  echo $enc_date."<hr>";

  echo "Sh1 character length : ".strlen($enc_date)."<hr>";