Schlagwort: password

Random password function in PHP and JavaScript

The syntax of JavaScript and PHP is very similar. How similar is shown by the following function that I wrote to generate a random password:

PHP code:

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<?php
function randomPassword($length){
  $password = "";
  for($i=0; $i<$length; $i++){		
    $func = rand(0,2);
    if($func == 0)
      $password = $password.chr(rand(48,57));
    else if($func == 1)
      $password = $password.chr(rand(65,90));
    else if($func == 2)
      $password = $password.chr(rand(97,122));
  }
  return $password;
}
 
$randomPassword = randomPassword(20);
echo($randomPassword);
?>

JavaScript code:

<script type="text/javascript" line="1">
function rand(min,max){
  if (arguments.length === 0){
    min = 0;
    max = 32767;
  }
  return Math.floor(Math.random() * (max - min + 1)) + min;
}
 
String.prototype.chr = function(code){
  return String.fromCharCode(code);
}
 
function randomPassword($length){
  $password = "";
  for($i=0; $i<$length; $i++){		
    $func = rand(0,2);
    if($func == 0)
      $password += $password.chr(rand(48,57));
    else if($func == 1)
      $password += $password.chr(rand(65,90));
    else if($func == 2)
      $password += $password.chr(rand(97,122));
  }
  return $password;
}
 
$randomPassword = randomPassword(20);
document.write($randomPassword);
</script>