I'm new to PHP and trying to write a bit of code that validates a form on the same page before then submitting the post to a database.
What i want is for the code to;
- ask if any of the fields have been filled
- if so check if any of the fields are empty (is so output a message)
- if not go through a series of validation checks of the data each time adding any errors to an array.
- finally ask if any errors have been found
- if not insert the data into a database (this bit of code is written but not shown in the code i provide below.
So here is my code:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Untitled Document</title>
</head>
if(isset($_POST['title']) || isset($_POST['content']) || isset($_POST['comment_option']));
{
$title = $_POST['title'];
$content = $_POST['content'];
$comment_option = $_POST['comment_option'];
$form_errors = array();
if (empty($title) || empty($content) || empty($comment_option))
{
$form_errors[] = "All fields are required!";
} else {
if (strlen($title < 3)){
$form_errors[] = "The title is too short!";
}
if (strlen($title > 50)){
$form_errors[] = "The title is too long!";
}
if (strlen($content < 50)){
$form_errors[] = "Post is a bit short!";
}
}
if(!empty($form_errors)) {
print_r($form_errors);
}else{
//insert data into database
}
}
?>
<form action="add_post.php" method="post">
Title: <input type="text" name="title"><br>
Content: <input type="text" name="content"><br>
Comments enabled?<br>
<input type="radio" name="comment_option" value="true">Yes<br>
<input type="radio" name="comment_option" value="false">No<br>
<input type="submit">
</form>
<body>
</body>
</html>
When i load the page i get three errors of an undefined index on the lines where i set the $title $content and $comment_option variables. If i just hit submit then i only get an error on the line where im setting the $comment_option variable but i do see "All fields are required". I also see this error if any of the fields are not filled in so this part works.
If all fields are filled in. No matter what the length i always see "Title is too short" and "Blog post is a bit short" even when they're not..
Iv spent a while looking at this and just cant figure it out what iv done wrong!
Any help would be much appreciated!!
Thanks, Max
