Class help

[bubblewrapped]

Hi Im new here and I was wondering if someone could tell me why my class is not working correctly, sorry if its a bit long

<?php

include("database_vars.php");

echo "entered page";

class customer_code {

//var $this;

function customer_code() {
	echo "enter function";
	mysql_connect($db_location, $db_username, $db_password)
	or die("Failure to connect with database");
	mysql_select_db("job_control");

/*if($_POST['update_cont'] = 'Update') {
	$this->update_contact();
}
elseif($_POST['cont_submit'] = 'Submit') {
	$this->insert_contact();
}
elseif($_POST['delete_cont'] = 'Delete') {
	$this->delete_contact();
}*/

$customer_id = $_POST['cont_id'];
$update_id = "update_cont" . $customer_id;

$delete_id = "delete_cont" . $customer_id;

if(isset($update_id)) {
	$this->update_contact();
	echo "going to update function";
}
elseif(isset($_POST['cont_insert'])) {
	$this->insert_contact();
}
elseif(isset($delete_id)) {
	$this->delete_contact();
}
}

function update_contact() {

	$emp_name = $_POST['emp_name'];

	$emp_id_query = "SELECT employee.emp_id, emp_name
					 FROM employee
					 WHERE employee.emp_name = '$emp_name'";
	$emp_id_result = mysql_query($emp_id_query);
	$emp_id_array = mysql_fetch_array($emp_id_result);

	$comp_id = $_POST['comp_id'];
	$cust_name = $_POST['cont_name'];
	$cust_title = $_POST['cont_title'];
	$cust_resp = $_POST['cont_resp'];
	$cust_phone = $_POST['cont_phone'];
	$cust_mobile = $_POST['cont_mobile'];
	$cust_fax = $_POST['cont_fax'];
	$cust_mail = $_POST['cont_mail'];
	$emp_id = $emp_id_array[emp_id];

	$update_query = "UPDATE customer
					 SET customer.cust_name='$cust_name', customer.cust_title='$cust_title', customer.cust_resp='$cust_resp', customer.cust_phone='$cust_phone', customer.cust_mobile='$cust_mobile', customer.cust_fax='$cust_fax', customer.cust_mail='$cust_mail', customer.emp_id='$emp_id'
					 WHERE customer.comp_id = '$comp_id'";
	$update_result = mysql_query($update_query);
	if(mysql_affected_rows() == 1) {
		echo "<p>The customer contact information has been updated</p>";
	} else {
		error_log(mysql_error());
		echo "<p>The information could not be updated: " . mysql_error() . "</p>";
	}
	echo "<form method='POST' action='customer.php' />";
	echo "<input type='hidden name='cust_name' value=\"$cust_name\"";
	echo "<meta http-equiv=\"refresh\" url=\"customer.php\" content=\" $cust_name \" />\n";
	echo "</form>";
}

function insert_contact() {

	$cust_id_query = "SELECT customer.cust_id
					  FROM customer
					  ORDER BY customer.cust_id DESC LIMIT 1";

	$cust_id_result = mysql_query($cust_id_query);
	$cust_id_array = mysql_fetch_array($cust_id_result);

	//insert new customer data
	//$cust_id = $_POST['cust_id'];
	$last_cust = $cust_id_array[cust_id] + 1;
	if($last_cust > 9) {
	$cust_id = '0' . $last_cust;
	} elseif($last_cust > 99) {
	$cust_id = $last_cust;
	} else {
	$cust_id = '00' . $last_cust;
	}
	$comp_id = $_POST['comp_id'];
	$cust_name = $_POST['cust_name'];
	$cust_title = $_POST['cust_title'];
	$cust_resp = $_POST['cust_resp'];
	$cust_phone = $_POST['cust_phone'];
	$cust_mobile = $_POST['cust_mobile'];
	$cust_fax = $_POST['cust_fax'];
	$cust_mail = $_POST['cust_mail'];
	$emp_id = $_POST['emp_id'];

	$cust_query = "INSERT INTO customer(customer.cust_id, customer.comp_id, customer.cust_name, customer.cust_title, customer.cust_resp, customer.cust_phone, customer.cust_mobile, customer.cust_fax, customer.cust_mail, customer.emp_id)
				   VALUES('$cust_id', '$comp_id', '$cust_name', '$cust_title', '$cust_resp', '$cust_phone', '$cust_mobile', '$cust_fax', '$cust_mail', '$emp_id')";
	$cust_result = mysql_query($cust_query);
	if(mysql_affected_rows() == 1) {
		echo "<p>The new customer contact has been inserted into the database</p>";
	} else {
		error_log(mysql_error());
		echo "<p>The information could not be entered into the database: " . mysql_error() . "</p>";
	}
	echo "<meta http-equiv=\"refresh\" url=\"customer.php\" content=\"$cust_name\" />\n";
}

function delete_contact() {

	$cust_name = $_POST['cont_name'];
	$cust_id = $_POST['cont_id'];

	$delete_query = "DELETE FROM customer
					 WHERE customer.cust_id = '$cust_id'";
	$delete_result = mysql_query($delete_query);

	echo "<meta http-equiv=\"refresh\" url=\"customer.php\" content=\"$cust_name\" />\n";
}
}
?>

[laserlight]

How does it not work? For example, what do you expect it to do, and how does it not do what you expect?