Need Help With Validation Form/sticky Form(code Inside)

jalist

I CAN GET IT TO WORK WITHOUT THE FINAL ELSE STATEMENT
CANT WITH
PERSONALLY I THINK MY LOGIC IS ALL MESSED UP

<html>
<head>
<title>Form sticky</title>
</head>
<body>
<?php

$fname=$POST['fname'];
$lname=$POST['lname'];

if(isset($POST['send'])){
if(empty($fname)){
echo "Please enter a first name";
}else if(empty($lname)){
echo "please enter a last name";
}else{
echo "thank you for signing up $fname $lname";
}
}else(!isset($POST['send'])){
?>
<form action="valtest.php" method="post">
First Name:<input type="text" name="fname" value="<?php echo $fname;?>">
<br>
Last Name:<input type="text" name="lname" value="<?php echo $lname;?>">
<br>
<input type="submit" name="send">
</form>
<?php
}
?>
</body>
</html>

bradgrafelman

Use the board's PHP tags when posting PHP code.
If you're asking for help with some code that is not working... tell us the problem! Is PHP giving you error messages? Is it not behaving as expected? Etc.
An [man]else[/man] statement (like yours here: "}else(!isset($_POST['send'])){") can't have any conditional information.
These lines will cause PHP to throw out E_WARNING's at you since the keys don't exist in the superglobal if the form hasn't been submitted yet:
```
$fname=$_POST['fname'];
$lname=$_POST['lname'];
```
You can either (a) surpress the error's by prepending each call to the $POST superglobal with an '@', or (b) check to see if the keys exist before you try to use them as values:
```
$fname = (isset($_POST['fname']) ? $_POST['fname'] : '');
$lname = (isset($_POST['lname']) ? $_POST['lname'] : '');
```

jalist

OK.
THE CODE WORKS FINE
THE ONLY PROBLEM IS
I WANT THE INPUT BOXES TO DISAPPEAR AFTER BOTH NAME FIELDS ARE FILLED IN.
CAN'T FIGURE OUT HOW TO WORK THE LOGIC.

<html>
<head>
<title>Form sticky</title>
</head>
<body>
<?php

$fname=$POST['fname'];
$lname=$POST['lname'];

if(isset($_POST['send'])){
if(empty($fname)){
echo "Please enter a first name";
}else if(empty($lname)){
echo "please enter a last name";
}else{
echo"thank you for signing up $fname $lname";
}
}

?>
<form action="valtest.php" method="post">
First Name:<input type="text" name="fname" value="<?php echo $fname;?>">
<br>
Last Name:<input type="text" name="lname" value="<?php echo $lname;?>">
<br>
<input type="submit" name="send">
</form>

</body>
</html>

bradgrafelman

Your previous approach was fine, you just simply needed to remove the conditional part of the else statement, like so:

}else{
echo "thank you for signing up $fname $lname";
}
}else{
?>

Also, a couple more suggestions:

Try not to use all caps. As per one of the bullets in RFC 1855 (Netiquette Guidelines),

Use mixed case. UPPER CASE LOOKS AS IF YOU'RE SHOUTING.

Indenting your code makes it a LOT easier to read and spot errors such as missing ending brace, incorrect brace placement, etc., like so:

if(isset($_POST['send'])) {
	if(empty($fname)) {
		echo "Please enter a first name";
	} else if(empty($lname)) {
		echo "please enter a last name";
	} else {
		echo "thank you for signing up $fname $lname";
	}
} else {

Houdini

OMG brad they don't seem to get it, I am tired and wonder if you aren't also. Take out white space (extra line feeds etcetera, and use the tools available in the message posing area in the second row of selections. You can do this by entering you code in full then selecting it with your mouse or the shiftkey and a cursor key and then clicking one of the code buttons or icons like # (for code) or <> (for HTML) or the tilde sign in the dogeared page ~ just before the quote. If you place your mouse over any ofthese features you will see a message about just what it does.

jalist

Thnaks for the help everyone
next time I will follow the rules.