[RESOLVED] Php and checking forms

[Fuzzylr]

Good day,

I'm rather new to this php coding thing. I may be doing this wrong. But here it goes.

I am trying to making a page where you are given 7 fields to fill in. Upon doing so I'd like to have a php function check the fields for consistancy.

My layout is

index.php -> config.php (mysql)
reg.php (function to check)
mysql.php (function to check if in use) + write to data base.
congrats.php

I am not sure how to get the php function to work with my form. then how do I jump to the next function?

[djjjozsi]

A checking function usually have these arguments:
-index name of $POST - for example: username ($POST["username"])
-required field 1/0
-check existense from database 1/0
-field name in the database/table
-Label in the error message - Username

Then you can call this function based on an array:

$field_structures[]=array(
"username" , 1 , 1 , "un_field" , "User name" 
);
$field_structures[]=array(
"email" , 1 , 1 , "email_field" , "E-mail" 
);

then you can use the foreach() php function to run the check on the inputs.

[jdc44]

define: >> a php function check the fields for consistancy.

[Fuzzylr]

jdc44;10936594 wrote:

define: >> a php function check the fields for consistancy.

Ok, I have a simple for that asks for the following information:
name
password
verify password
email

verifcation code.

My orginal attempt at this is was to write one massive code which you are about to see. Pardon my sloppy coding practices. But my more ideal code is one that checks more on the fly and then places an X (image plus an error message) and a check (image) and then run the sql part after all is done. But I'm very new with php and I can't figure out how to get it to all work together.

<?php


$user = $_REQUEST['username'];
$email = $_REQUEST['email'];
$password = $_REQUEST['password'];
$password1 = $_REQUEST['password1'];
$code = $_REQUEST['code'];

if ((empty($user)) || (empty($email)) || (empty($password)) || (empty($password1)) || (empty($code)))
{
	$error = 'Please fill out all form areas.  Thank you.';
	exit();
}
elseif (strlen($user) < 5)
{
	$error = 'Minimum of 5 characters required!';
	exit();
}
elseif (strlen($user) > 14)
{
	$error = 'Exceeded Maximum of 14 Characters!';
	exit();
}
elseif (strlen($password) < 5)
{
	$error = 'Minimum of 5 characters required!';
	exit();
}
elseif (strlen($password) > 12)
{
	$error = 'Exceeded Maximum of 12 Characters!';
	exit();
}
elseif (strlen($password1) < 5)
{
	$error = 'Minimum of 5 characters required!';
	exit();
}
elseif (strlen($password1) > 12)
{
	$error = 'Exceeded Maximum of 12 Characters!';
	exit();
}
elseif (strnatcmp ($password, $password1) != 0)
{
	$error = 'Your passwords do not match!';
	exit();
}
elseif (strlen($email) > 50)
{
	$error = 'Your email exceeds 50 Characters!';
	exit();
}
elseif (preg_match("/^([a-zA-Z0-9])+([a-zA-Z0-9\._-]) ?*@([a-zA-Z0-9_-])+([a-zA-Z0-9\._-]+)+$/", $email))
{
	list($username,$domain)=split('@',$email);
	if(!checkdnsrr($domain,'MX'))
	{
		$error = 'No mail record for this email';
		exit();
	}
}
if (isset($_POST['AnimCaptcha']))
{
	if (is_numeric($_POST['AnimCaptcha']))
	{
		if ( $_POST['AnimCaptcha'] == $_SESSION['answer'])
		{
			$qry = @mysql_query($register_sql, $con);
		}
		else
		{
			$error = 'You failed to fill out the Challenge question properly!';
			exit();
		}
	}
	else
	{
		$error = 'You failed to answer the challenge question!';
		exit();
	}
}
header('location:mysql.php');

function error($error)
{
	echo $error;
}
?>

[Fuzzylr]

Hey, mod. Sorry delete my second post. I didn't know you were going to check my post. Sorry for the trouble.

[djjjozsi]

First, try to write one function to check one field with all the requirements you have here. Then apply that function where you feed that with an array.

[Fuzzylr]

djjjozsi;10936649 wrote:

First, try to write one function to check one field with all the requirements you have here. Then apply that function where you feed that with an array.

I suck with arrays. Could you give me a watered down version of what your talking about. I almost bombed my programing course because of it.

Also, I don't need it to be instant but how can I get it check real time. I've tried a couple of functions that failed horribly.

Maybe I am thinking above my skill level here. But I went to a site that when you logged in it it checked your form while you filled it out. A lot of gaming sites have that feature now.

I'll start to work on a function.

[Fuzzylr]

This is what I was thinking about as far the function goes. Truth be told I'm not sure how to make all this work.

<?php

function checkuser()
{
$checkuser = $_POST['username'];

if (empty ($checkuser))
{
	echo 'Please fill in username field.';
	exit();
}
if (strlen($checkuser) < 5)
{
	echo 'Minimum of 5 characters required!';
	exit();
}
if (strlen($checkuser) > 14)
{
	echo 'Exceeded maximum of 14 characters!';
	exit();
}
include_once('config.php');
$con = mysql_connect('$ip, $user, $pass');
if (!$con)
{
	die('Could not connect: ' . mysql_error());
}
$sql = 'SELECT * FROM account WHERE username = $checkuser';
$result = mysql_query($sql,$con);
If ($result = true)
{
	echo 'That user name is taken.';
	exit();
}
}
?>

[djjjozsi]

shematic/did not tested example:

<?php

function check( $index , $label, $required , $min , $max )
{
    $errors = '';
    $value = isset( $_POST[$index] ) ? $_POST[$index] : null ;

if ( $required AND empty( $value ) )
    $errors .= $label . ' is empty<br />';
else {
    if ( strlen( $value ) > $max )
        $errors .= $label . ' is longer then' . $max . "<br />";

    if ( strlen( $value ) < $min )
        $errors .= $label . ' is shorten then' . $min . "<br />";
} 
return $errors;
} 
// how to call it:
if ( isset( $_POST["submit"] ) ) {
    $errors = ''; 
    // ( $index , 		$label, 		$required , $min , $max )
    $errors .= check( "un" , "Username" , 1 , 2 , 50 );
    $errors .= check( "pass" , "Password" , 1 , 2 , 50 );
    $errors .= check( "email" , "Email" , 1 , 2 , 50 );
    $errors .= check( "message" , "Message" , 1 , 2 , 50 );

if ( empty( $errors ) ) {
    // do something
} else {
    print "Check these errors:" . $errors;
} 
} 

?>

[Fuzzylr]

function check( $index , $label, $required , $min , $max )

predefined? I dont see the calls to tell the function what goes where.

😕