php.css and html undefined index and uncaught exemption - php

Question

this is the error i get after i reload the browser (Notice: Undefined index:) and also this (Uncaught exception 'PDOException' with message 'SQLSTATE[HY093]: Invalid parameter number: number of bound variables does not match number of tokens')
THIS IS MY CODE:
addform.php
<input type="text" name="EMPLOYEENO" placeholder="Employee No">
<input type="text" name="NAME" placeholder="Name">
<input type="text" name="OCCUPATION" placeholder="Occupation">
<input type="text" name="GENDER" placeholder="Gender"><br><br>
<input type="text" name="AGE" placeholder="Age">
<input type="text" name="ADDRESS" placeholder="Address">
<input type="text" name="CELLPHONE" placeholder="Cellphone No">
<input type="text" name="DATEOFBIRTH" placeholder="Date of Birth"><br><br>
<input type="text" name="CITIZEN" placeholder="Citizenship">
<input type="text" name="RELIGION" placeholder="Religion">
<input type="text" name="HEIGHT" placeholder="Height">
<input type="text" name="WEIGHT" placeholder="Weight"><br><br>
<input type="text" name="ELEMENTARY" placeholder="Elementary">
<input type="text" name="ELEMENTARYYEAR" placeholder="Year Graduated"><br><br>
<input type="text" name="HIGHSCHOOL" placeholder="High School">
<input type="text" name="HIGHYEAR" placeholder="Year Graduated"><br><br>
<input type="text" name="COLLEGE" placeholder="College">
<input type="text" name="COLLEGEYEAR" placeholder="Year Graduated"><br>
<button>SUBMIT</button>
</div>
AND ADDFORM_PROCESS.PHP
$idno = $_POST['EMPLOYEENO'];
$name = $_POST['NAME'];
$occ = $_POST['OCCUPATION'];
$gender = $_POST['GENDER'];
$age = $_POST['AGE'];
$address = $_POST['ADDRESS'];
$cell = $_POST['CELLPHONE'];
$birth = $_POST['DATEOFBIRTH'];
$citizen = $_POST['CITIZEN'];
$religion = $_POST['RELIGION'];
$height = $_POST['HEIGHT'];
$weight = $_POST['WEIGHT'];
$elementary = $_POST['ELEMENTARY'];
$elementaryyear = $_POST['ELEMENTARYYEAR'];
$highschool = $_POST['HIGHSCHOOL'];
$highschoolyear = $_POST['HIGHYEAR'];
$college = $_POST['COLLEGE'];
$collegeyear = $_POST['COLLEGEYEAR'];
if ($idno="" || $name="" || $occ="" || $gender="" || $age="" || $address="" || $cell="" || $birth="" || $citizen="" ||
$religion="" || $height="" || $weight="" || $elementary="" || $elementaryyear="" || $highschool="" ||
$highschoolyear="" || $college="" || $collegeyear=""){
echo "<script>
alert('Dont leave the textbox empty!');
window.location='addform.php';
</script>";
}else{
$stmt=$db->prepare("INSERT INTO tbl_employee_information(EmployeeNo,Name,Occupation,Gender,Age,Address,CellphoneNo,DateofBirth,Citizenship,Religion,Height,Weight,Elementary,YearGraduatedinElementary,HighSchool,YearGraduatedinHighSchool,College,YearGraduatedinCollege) VALUES(:EMPLOYEENO,:NAME,:OCCUPATION,:GENDER,:AGE,:ADDRESS,:CELLPHONE,
:DATEOFBIRTH,:CITIZEN,:RELIGION,:HEIGHT,:WEIGHT,:ELEMENTARY,:ELEMENTARYYEAR,:HIGHSCHOOL,:HIGHYEAR,:COLLEGE,:
COLLEGEYEAR)");
$stmt->bindParam(':EMPLOYEENO',$idno);
$stmt->bindParam(':NAME',$name);
$stmt->bindParam(':OCCUPATION',$occ);
$stmt->bindParam(':GENDER',$gender);
$stmt->bindParam(':AGE',$age);
$stmt->bindParam(':ADDRESS',$address);
$stmt->bindParam(':CELLPHONE',$cell);
$stmt->bindParam(':DATEOFBIRTH',$birth);
$stmt->bindParam(':CITIZEN',$citizen);
$stmt->bindParam(':RELIGION',$religion);
$stmt->bindParam(':HEIGHT',$height);
$stmt->bindParam(':WEIGHT',$weight);
$stmt->bindParam(':ELEMENTARY',$elementary);
$stmt->bindParam(':ELEMENTARYYEAR',$elementaryyear);
$stmt->bindParam(':HIGHSCHOOL',$highschool);
$stmt->bindParam(':HIGHYEAR',$highschoolyear);
$stmt->bindParam(':COLLEGE',$college);
$stmt->bindParam(':COLLEGEYEAR',$collegeyear);
$stmt->execute();
header("location:main.php");

Answer 1

Maybe if you put the names of the parameters in an array and use foreach loop to build your request text and multiple calls of bindParam it would be easyer to debug ?