我在php文件的头部有这个JavaScript代码:
<script language="JavaScript" type="text/javascript">
function validateFirstName(field)
{
if (field == "")
{
return "Please enter a first name.\n";
}
else if (/[^a-zA-Z]/.test(field))
{
return "Invalid first name.\n";
}
return "";
}
function validateLastName(field)
{
if (field == "")
{
return "Please enter a last name.\n";
}
else if (/[^a-zA-Z]/.test(field))
{
return "Invalid last name.\n";
}
return "";
}
//more functions eliminated
function validate(form)
{
fail = validateFirstName(form.firstname.value);
fail += validateLastName(form.lastname.value);
//and so forth
if (fail == "")
{
return true;
}
else
{
alert(fail);
return false;
}
}
</script>
形式:
<form action="StudentSignUpPageAddingData.php" method="post" onsubmit="return validate(this)">
<p id="p3">First Name: <input id="roundedcorners" type="text" name="firstname"><br></p>
<p id="p3">Last Name: <input id="roundedcorners" type="text" name="lastname"><br></p>
//and so forth
<input id="i1" type="submit" value="Done!">
</form>
但是,当我运行它时,程序会跳到StudentSignUpPageAddingData.php中的代码。我是PHP和JavaScript的新手,所以我想知道onsubmit调用是否有问题。我是否还应该考虑将JavaScript代码粘贴到单独的文件中并简单地在PHP文件中引用它?
答案 0 :(得分:0)
知道了,原来我的计算机因某种原因禁用了JavaScript。这是一个快速链接,可以找出如何快速启用JavaScript: