如何在.php页面中添加外部javascript页面?
所以我的.php文件以前是一个.html页面,但是我想在这个文件中添加一个会话,并使用javascript验证我的表单。但是当我在标签中添加时,什么都没有发生。当我的文件是.html时,它工作正常。。。以下是我目前的代码:如何在.php页面中添加外部javascript页面?,javascript,php,netbeans,Javascript,Php,Netbeans,所以我的.php文件以前是一个.html页面,但是我想在这个文件中添加一个会话,并使用javascript验证我的表单。但是当我在标签中添加时,什么都没有发生。当我的文件是.html时,它工作正常。。。以下是我目前的代码: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<?php
session_start();
?>
<html>
<html>
<head>
<title>Hompage</title>
<script type="text/javascript" src="my_js.js"></script>
</head>
<body style = "margin-left:5%;">
<form method = "post" id = "Form1" action = "my_js.js">
<b>Login:</b>
<br/>
<br/>
User Name:      
<input type="text" name="uname" id ="uname"/>
<br/>
<br/>
Password:      
<input type="text" name="pwd" id ="pwd"/>
<br/>
<br/>
<input type ="button" id="Login" value ="Login" onclick = "validate();"/>
</form>
<br/><br/>
<hr/>
<br/><br/>
<form method = "post" name = "Form2" id = "Form2" action="register_add.php">
<b>Register:</b>
<br/>
<br/>
<span style = "color: red;">*</span> First Name:     
<input type="text" name="fname" id ="fname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Last Name:      
<input type="text" name="lname" id ="lname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Date of Birth:      
<input type = "text" name = "dob" id ="y" value = "yyyy/mm/dd">
<br/>
<br/>
<span style = "color: red;">*</span> User Name:      
<input type="text" name="uname" id ="uname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Password:      
<input type="password" name="pwd" id ="pwd"/>
<br/>
<br/>
<input type ="Submit" id="Register" value ="Register"/>
</form>
</body>
</html>
你必须把
<?php
session_start();
?>
在
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
您的javascript似乎有一些错误。记住使用开发工具(chrome/IE中的F12)并检查控制台 更新的代码和.js如下……我所做的是:
- 删除所有的var=因为他们在我这边抛出错误
- 您的登录和注册错误消息(id=“para1”和div id=“Para2”)在页面上没有这些元素,因此我添加了它们
- 我完成了注册测试代码(一些表单元素,其中miss命名并抛出错误…添加到JS第21行的注释)
<html>
<head>
<title>Hompage</title>
<script type="text/javascript" src="my_js.js"></script>
</head>
<?php
session_start();
?>
<body style = "margin-left:5%;">
<form method = "post" id = "Form1" action = "my_js.js">
<b>Login:</b>
<br/>
<br/>
User Name:      
<input type="text" name="uname" id ="uname"/>
<br/>
<br/>
Password:      
<input type="text" name="pwd" id ="pwd"/>
<div id="para1"></div>
<br/>
<br/>
<input type ="button" id="Login" value ="Login" onclick = "validate();"/>
</form>
<br/>
<br/>
<hr/>
<br/>
<br/>
<form method = "post" name = "Form2" id = "Form2" action="register_add.php" >
<b>Register:</b>
<br/>
<br/>
<span style = "color: red;">*</span> First Name:     
<input type="text" name="fname" id ="fname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Last Name:      
<input type="text" name="lname" id ="lname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Date of Birth:      
<input type = "text" name = "dob" id ="y" value = "yyyy/mm/dd">
<br/>
<br/>
<span style = "color: red;">*</span> User Name:      
<input type="text" name="uname" id ="uname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Password:      
<input type="password" name="pwd" id ="pwd"/>
<br/>
<br/>
<div id="para2"></div>
<input type ="button" id="Register" value ="Register" onclick = "validate();"/>
</form>
</body>
</html>
my_js.js
文件是否与此php文件位于同一目录中?谢谢!!这有助于我的会话想法,并且我能够让我的用户保持登录状态,以便他们可以在站点上执行多个操作:)非常感谢,我完全忘记删除那些额外的变量。。。它现在起作用了,我多么希望它。。。
<html>
<head>
<title>Hompage</title>
<script type="text/javascript" src="my_js.js"></script>
</head>
<?php
session_start();
?>
<body style = "margin-left:5%;">
<form method = "post" id = "Form1" action = "my_js.js">
<b>Login:</b>
<br/>
<br/>
User Name:      
<input type="text" name="uname" id ="uname"/>
<br/>
<br/>
Password:      
<input type="text" name="pwd" id ="pwd"/>
<div id="para1"></div>
<br/>
<br/>
<input type ="button" id="Login" value ="Login" onclick = "validate();"/>
</form>
<br/>
<br/>
<hr/>
<br/>
<br/>
<form method = "post" name = "Form2" id = "Form2" action="register_add.php" >
<b>Register:</b>
<br/>
<br/>
<span style = "color: red;">*</span> First Name:     
<input type="text" name="fname" id ="fname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Last Name:      
<input type="text" name="lname" id ="lname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Date of Birth:      
<input type = "text" name = "dob" id ="y" value = "yyyy/mm/dd">
<br/>
<br/>
<span style = "color: red;">*</span> User Name:      
<input type="text" name="uname" id ="uname"/>
<br/>
<br/>
<span style = "color: red;">*</span> Password:      
<input type="password" name="pwd" id ="pwd"/>
<br/>
<br/>
<div id="para2"></div>
<input type ="button" id="Register" value ="Register" onclick = "validate();"/>
</form>
</body>
</html>
function validate() {
x = document.forms["Form1"]["uname"].value;
y = document.forms["Form1"]["pwd"].value;
if (x == null || x == "" || uname == null) {
//alert("User name must be filled out");
document.getElementById('para1').innerHTML = "User Name field must be filled out";
return false;
}
if (y == null || y == "" || pwd == null) {
document.getElementById('para1').innerHTML = "Password field must be filled out";
return false;
} else {
document.getElementById('Form1').innerHTML = "User Name: " + x + "\nPassword: " + y;
}
// Registration Form Validation
a = document.forms["Form2"]["fname"].value;
b = document.forms["Form2"]["lname"].value;
dob = document.forms["Form2"]["dob"].value;
///These values do not exist in the form...commenting them out
//c=document.forms["Form2"]["m"].value;
//d=document.forms["Form2"]["d"].value;
//e=document.forms["Form2"]["y"].value;
f = document.forms["Form2"]["uname"].value;
g = document.forms["Form2"]["pwd"].value;
if ((a == null || a == "") || (b == null || b == "") || (dob == null || dob == "") || (f == null || f == "") || (g == null || g == "")) {
document.getElementById('para2').innerHTML = "All field with '*' must be filled out";
return false;
} else {
document.getElementById('Form2').innerHTML = "First Name: " + a + "\nLast Name: " + b + "\nDate of Birth: " + m + d + y + "\nUsername: " + uname + "\nPassword: " + pwd;
}
}