Php Login Form

Catman

Does anyone know the code for a login form & validation page that will redirect u if you had a sucsessful login?

Houdini

This is actually a general PHP question and not a PHP5 question but yes there are plenty of scripts out on the net to do what you want. Just do a search for PHP form Validation Tutorial and you should find plenty of them. Then when you find ne and have a problem with it then present your probem along with the troublesome code and some one will help you with it. We do not write code for others here we help with existing code or explain how certatin code should work.

Catman

This is Index.php

<?php>
function ValidationSet($a_obj_DBConn = null)
	{
		$this->arr_validators = array();
		$this->arr_validationErrors = array();
		$this->obj_DBConn = $a_obj_DBConn;
		$this->bool_hasErrors = false;
	}


function setDBConn($a_obj_DBConn)
{
	$this->obj_DBConn = $a_obj_DBConn;
}

function getDBConn()
{
	return $this->obj_DBConn;
}


function addValidator($a_obj_validator)
{
	$a_obj_validator->setValidationSet(&$this);
	array_push($this->arr_validators, $a_obj_validator);
}

function addValidationError($a_obj_validationError)
{
	array_push($this->arr_validationErrors, $a_obj_validationError);
	$this->setHasErrors(true);
}

function hasErrors()
{
	return $this->bool_hasErrors;
}


function setHasErrors($a_bool_hasErrors)
{
	$this->bool_hasErrors = $a_bool_hasErrors;
}
function getErrorByFieldName($a_str_fieldName)
	{
		for($i = 0; $i < sizeof($this->arr_validationErrors); $i++)
		{
			if($this->arr_validationErrors[$i]->getFieldName() == $a_str_fieldName)
			{
				return $this->arr_validationErrors[$i]->getErrorMessage();
			}
		}
	}
function setValidationSet(&$a_obj_validationSet)
	{
		$this->obj_validationSet =& $a_obj_validationSet;
	}
function getValueByFieldName($a_str_fieldName)
	{
		foreach($_REQUEST as $key => $value)
		{
		   if(strtolower($key) == strtolower($a_str_fieldName))
		   {
		   	return $value;
		   }
		}
	}
function EmailValidator($a_str_fieldName, $a_str_errorMessage = null, $a_str_fieldValue = null)
	{
		$this->str_fieldName = $a_str_fieldName;
		$this->str_fieldValue = $a_str_fieldValue;

	if($this->str_fieldValue == null)
	{
		$this->str_fieldValue = $this->getValueByFieldName($this->str_fieldName);
	}

	if($a_str_errorMessage == null)
	{
		$this->str_errorMessage = "Invalid e-mail address";
	}
	else
	{
		$this->str_errorMessage = $a_str_errorMessage;
	}
}
function validate()
	{
		if(strlen($this->str_fieldValue) != 0)
		{
			if (!eregi('^[A-Z0-9._%-]+@[A-Z0-9._%-]+\.[A-Z]{2,6}$', $this->str_fieldValue))
			{
				$this->obj_validationSet->addValidationError(new ValidationError($this-

str_fieldName, $this->str_errorMessage));
			}
		}
	}
function ValidationError($a_str_fieldName, $a_str_errorMessage)
	{
		$this->str_fieldName = $a_str_fieldName;
		$this->str_errorMessage = $a_str_errorMessage;
	}

function getFieldName()
{
	return $this->str_fieldName;	
}


function getErrorMessage()
{
	return $this->str_errorMessage;	
}
require_once('_includes/classes/validation/ValidationSet.php');

$obj_validationSet = new ValidationSet();

if($_POST['submitted'] == 'yes')
{
	$obj_validationSet->addValidator(new EmailValidator('email'));
	$obj_validationSet->validate();

	if(!$obj_validationSet->hasErrors())
	{
		// store form data here
		// exit the page
	}
}
</?php>

This is index.html

<html>
	<body>
	<form action="index.php" method="POST">
		<input type="hidden" name="submitted" value="yes" />
		<input type="text" name="email" value="<?=$_POST['email']?>" /><?=$obj_validationSet->getErrorByFieldName('email')?><br /><br />
		<input type="submit" value="submit" />
	</form>
	</body>
	</html>

How can i get these to work?

thepeccavi

2 problems with index.html:

1| It contains php code (<?=$obj_validationSet->getErrorByFieldName('email')?>

and

2| There is no ; (semi-colon) at the end of the line of your php code.

I would recommend re-naming index.php to logon.php or somthing, as index.html needs the php extension.

Hope that helps

Houdini

A couple of problems here. The index appears to be part of a class but there is no class definition so there should be more code than what you are showing. and PHP unlike HTML does not have a closing > (greater then sign in it) so this

<?php>//no such tag
//and there is no such tag as the below
</?php>

should be

<?php
//and
?>

the $this is used within the class itself but since there is no class defined none of the functions will work. Also in your form you are using 'short tags' namely here

<?=$_POST['email']?>" />
//and immediately after ir 
<?=$obj_validationSet->getErrorByFieldName('email')?>

it would be better to use

<?php echo $_POST['email'] ?>" /><?php echo$obj_validationSet->getErrorByFieldName('email')?>

It look like you are referencing a class that will validate the form elements as well a email validation, connect to the database.

OOPs now I see the call for the class right here.

require_once('_includes/classes/validation/ValidationSet.php');

so try just fixing the <?php> and </?php> and try it again make <?php> just <?php and end the script with just ?> not </?php>