How to "see" php variable in multiple <?php ?> - php

Question

Ok i will show you code, you should understand from it what i want, problem is it doesnt recognize variable from one php tags inside other php tags on same page which is contact.php...
<form action="contact.php" method="POST">
<p>Name: <input type="text" name="name"><?php $nameErr=' '; echo $nameErr; ?></p>
<p>Email: <input type="email" name="email"><?php $emailErr=' '; echo $emailErr; ?></p>
<p>Message:</p> <textarea name="message" rows="10" cols="50"></textarea><br />
<p><?php $messageErr= ' '; echo $messageErr; ?></p>
<button type="submit" value="Submit" name="Submit1">Submit</button>
</form>
<?php
if (isset($_POST['Submit1'])) {
$name = $_POST['name'];
$email= $_POST['email'];
$message= $_POST['message'];
$formcontent= "From: $name \n Message: $message";
$recipient= "konstantin91#gmail.com";
$subject= "Contact Form";
$mailheader= "From: $email \r\n";
if(strlen($name)==0) {
$nameErr = "Name is required <br>";
die();
}
elseif(strlen($email)==0) {
$emailErr = "Email is required";
die();
}
elseif(strlen($message)==0) {
$messageErr "Message is required <br>";
die();
}
else {
echo "$name, thank you for submiting message";
}
}
?>
I made all $varErr variables empty strings by default so when you first enter contact.php you see nothing, but when you submit form IF checks if field is empty, if it is empty i want inline with form field to echo $varErr for that field ($nameErr or $emailErr, $messageErr will go under textarea field cause i want it like that)
Hope you understand what i want, i have finished everything just that form and i am done.. Ofcourse i can avoid all of this by echoing under form error for empty form fields but that is not what i want...

Answer 1

In your original code $nameErr, $emailErr and $messageErr are changed after showing them.
If you make something like:
<?php $something = "value1";
echo $something;
$something = "value2";
?>
it will show value1 on the screen.
It should be something like this:
<?php
$nameErr='';
$emailErr='';
$messageErr= '';
if ($_POST) {
$name = $_POST['name'];
$email= $_POST['email'];
$message= $_POST['message'];
$formcontent= "From: $name \n Message: $message";
$recipient= "konstantin91#gmail.com";
$subject= "Contact Form";
$mailheader= "From: $email \r\n";
if(strlen($name)==0) {
$nameErr = "Name is required <br>";
}
elseif(strlen($email)==0) {
$emailErr = "Email is required";
}
elseif(strlen($message)==0) {
$messageErr = "Message is required <br>";
}
else {
echo "$name, thank you for submiting message";
}
}
?>
<form action="" method="POST">
<p>Name: <input type="text" name="name"><?php echo $nameErr; ?></p>
<p>Email: <input type="email" name="email"><?php echo $emailErr; ?></p>
<p>Message:</p> <textarea name="message" rows="10" cols="50"></textarea><br />
<p><?php echo $messageErr; ?></p>
<button type="submit" value="Submit" name="Submit1">Submit</button>
</form>
Also I removed die() because else it makes an exitbefore showing the error. However you don't needdie()here because it sends the form only if server runs the lastelse` statement, only if all fields are completed.