Returns the article tag with ID from the action page
Let's say you're in a login form and you enter the wrong information; in this case, you probably want to go back to the login page.
PHP has a built-in function header()to redirect a page to a specific page.
But what if the login page is at the bottom of the page or somewhere in the middle.
In this case, we can locate the id of the tag and put it into the URL. We can use the Html article tag for the separate item part of the login form.
Use PHP headers to return a specific article tag with an ID
We use two different article tags with different ids, one with the content and one with the login form. When we submit, we want to go back to the login section.
index.phppage:
<!DOCTYPE html>
<html>
<head>
<style>
p {
font-size: 100px;
}
#email {
margin: auto;
width: 50%;
border: 3px solid green;
padding: 10px;
}
input[type=email], input[type=password] {
width: 100%;
padding: 10px 18px;
box-sizing: border-box;
margin: 8px 0;
display: inline-block;
border: 3px solid #8fbc8f ;
}
button {
background-color: #8fbc8f;
color: white;
margin: 8px 0;
cursor: pointer;
padding: 10px 18px;
border: none;
width: 100%;
}
</style>
</head>
<body>
<div id="main">
<article id="paragraph1">
<p>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam."</P
</article>
<article id="email">
<form action="action.php" method="post">
Email: <input type="email" placeholder="example@example.com" >
<br>
Password: <input type="password" placeholder="********">
<br>
<button name="submit" type="submit" value="login" class="login">Login</button>
</form>
</article>
<article id="paragraph2">
<p>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam."</P
</article>
</div>
</body>
</html>
Form operation page action.php:
<script>
alert("This is form action page; please enter the information again, click ok to go back to the login form");
</script>
<?php
//header function is used to redirect the page to a perticular link. we can fetch the id of a tag and redirect the page
$url = 'Refresh:0; url=index.php#email';
header($url);
?>
After index.phpthe form is submitted, the code will go to the second page and redirect it back to index.phpthe login section of .
Output:
In this case, we can action.phpput anything before the header of the page to verify the email and password information in the database in order to redirect conditionally.
For dynamic redirection, we can index.phpuse javascript or jquery on the page to get the id of the current tab and send it to action.phpto redirect the page to that tab.
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