error checking code

mindapolis · November 8, 2011

Hi, I wrote a simple code to check to see if the user filled in the name field, but when I uploaded the file, it just displays the code. here 's the code.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<?php
$errors=array(); 
if(isset($_POST['submit']))
{
	validate_input(); 
	if(count($errors) !=0)
	{
		display_form(); 	
	}
	else 
	{
		display_form(); 	
	}
}
function validate_input() {
	global $errors; 
	if($_POST['name'] == " "){
	$errors['name']="dipshit, put your name";
	}
?>   
<form action="" method="post" name="test">
Name:  <input name="name" type="text" size="10" maxlength="15" value="<?php echo $_POST[name]; ?>"/><br />  
<?php echo $errors['name']; ?>
<input name="submit" type="button" value="submit" />
</form>
</body>
</html>

Pikachu2000 · November 8, 2011

Is the file extension .php?

mindapolis · November 8, 2011

yes

Pikachu2000 · November 8, 2011

And what happens when you run the code locally? It should generate a parse error; unexpected $end

mindapolis · November 8, 2011

No, there 's no error. It just displays the script on the webpage.

Pikachu2000 · November 8, 2011

Perhaps you could elaborate on that a bit? Maybe paste the result of View ---> Source? Is this script being include()d by another script? Details are important.

mindapolis · November 8, 2011

when I click view source I get this code. here 's the link to the page. http://auntievics.com/error.phtml

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<?php
$errors=array(); 
if(isset($_POST['submit']))
{
	validate_input(); 
	if(count($errors) !=0)
	{
		display_form(); 	
	}
	else 
	{
		display_form(); 	
	}
}
function validate_input() {
	global $errors; 
	if($_POST['name'] == " "){
	$errors['name']="dipshit, put your name";
	}
?>   
<form action="" method="post" name="test">
Name:  <input name="name" type="text" size="10" maxlength="15" value="<?php echo $_POST[name]; ?>"/><br />  
<?php echo $errors['name']; ?>
<input name="submit" type="button" value="submit" />
</form>
</body>

</html>

RaythMistwalker · November 8, 2011

.phtml isn't .php

Save as error.php

mindapolis · November 8, 2011

I am so sorry. In my PHP class my professor said php and phtml were the same thing. Anyway, I fixed that error but if I don't enter a name and click submit no error message comes up. I wonder if it has something to do with the form action? ?

NewcastleFan · November 8, 2011

Try:

if(!$_POST['name'])

Instead of:

if($_POST['name'] == " ")

Drummin · November 8, 2011

$_POST['name'] is going to be there so if(!$_POST['name']) is not what you need.

If (empty($POST['name'])) will let you know if the value of $POST['name'] has a value.

redarrow · November 8, 2011

In my PHP class my professor said php and phtml were the same thing

your professor must of fort, when you load php from scratch, the extension settings are set as phtml and not .php

when you download a copy of php, sometimes the extension settings are set to all sorts of settings.

maybe the professor, should teach the internal settings of php and Apache.

also looking at your code, i think if the teacher used upper case, for xhtml then others can identify html from php quicker.

also where the comments to show what the code doing.

If your going to learn php, html, mysql, and ajax and JavaScript plus css, might as well do it Wright.

what the course price dont tell me £3.ooo plus only 10 sittings/lessons

KevinM1 · November 8, 2011

Maybe the professor should teach to not use the 'global' keyword, and how to properly structure a PHP script as well.

xyph · November 8, 2011

Your professor seems like 75% of the 'teachers' I had going through my degree. The only thing harder than putting up with their classes was trying to get my money back

To solve you issue, no PHTML is NOT the same extension as PHP. Just like <? is not the same as <?php.

Some PHP installs are set up to only parse files with the PHP extension, some will even parse HTML extensions. There are ways around this, but as a general rule, name your files using the 'php' extension to ensure maximum compatibility.

Let us know what happens after you change the file's extension.

mindapolis · November 9, 2011

I changed the file extension & adjusted the following code but still no go.

<?php
$errors=array(); 
if(isset($_POST['submit']))
{
	validate_input(); 
	if(count($errors) !=0)
	{
		display_form(); 	
	}
	else 
	{
		display_form(); 	
	}
}
function validate_input() {
	global $errors; 
	if(empty($_POST['name']) == " "){
	$errors['name']="Hey dipshit, put your name";
	}
	}
?>   
<form action="checkOut.php" method="post" name="test">
Name:  <input name="name" type="text" size="10" maxlength="15" value="<?php echo $_POST[name]; ?>"/><br />  
<?php echo $errors['name']; ?>
<input name="submit" type="button" value="submit" />
</form>

xyph · November 9, 2011

No go what?

The PHP still isn't being parsed?

Are you trying to open these files on your local computer? If so, it isn't getting parsed because you don't have a parser on your computer.

Download and install WAMP (Windows) or MAMP (OSX) to solves that issue. When it's installed and running, put your PHP files in your web directory and access through http://localhost/file.php

mindapolis · November 9, 2011

I'm sorry, I meant if I leave the name field blank and click submit no error comes up saying put your name

xyph · November 9, 2011

Of course it doesn't. Look at what your script checking.

mindapolis · November 9, 2011

What? ? sorry, it 's late

Drummin · November 9, 2011

I won't even mess with your function attempt but here's a working form based on what you have started. You should read up on html and forms. Don't use type="button"...

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body>
<?php 
$errors=array(); 
if(isset($_POST['submit']))
{
if(empty($_POST['name'])){
$errors['name']="dipshit, put your name";
}
}
?>   
<form action="" method="post" name="test">  
<?php if(isset($errors['name'])){ echo $errors['name']."<br />"; } ?>
Name:  <input name="name" type="text" size="10" maxlength="15" value="<?php if(isset($_POST['name'])){ echo "$_POST[name]"; } ?>" /><br />  
<input name="submit" type="submit" value="Submit" />
</form>
</body>
</html>

mindapolis · November 9, 2011

Oh, I am so sorry. I just realized what I did. It was really late when I made my last reply. I am so sorry.

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