data_valid_fns.php

使用PHP和MySql完成的简单图书馆信息管理系统

<?php
function filled_out($form_vars)
{
  // test that each variable has a value
  foreach ($form_vars as $key => $value)
  {
     if (!isset($key) || ($value == '')) 
        return false;
  } 
  return true;
}

?>