php生成随机密码的范例

<?php
/**
  自动生成密码
*/
function password(length, special) {
  var iteration = 0;
  var password = "";
  var randomNumber;
  if(special == undefined){
      var special = false;
  }
  while(iteration < length){
    randomNumber = (Math.floor((Math.random() * 100)) % 94) + 33;
    if(!special){
      if ((randomNumber >=33) && (randomNumber <=47)) { continue; }
      if ((randomNumber >=58) && (randomNumber <=64)) { continue; }
      if ((randomNumber >=91) && (randomNumber <=96)) { continue; }
      if ((randomNumber >=123) && (randomNumber <=126)) { continue; }
    }
    iteration++;
    password += String.fromCharCode(randomNumber);
  }
  return password;
}
?>

<?php
/**
  随机密码 调用示例
*/
password(8);
// Outputs: Yrc7TxX3

password(12, true);
//Outputs: C}4_ege!P&#M
?>