Answers for "how to validate form in php"

form validation in php

<?php
// define variables and set to empty values
$name = $email = $gender = $comment = $website = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {
  $name = test_input($_POST["name"]);
  $email = test_input($_POST["email"]);

  
 $website = test_input($_POST["website"]);
  $comment = test_input($_POST["comment"]);
  $gender = test_input($_POST["gender"]);
}

 //php form data validation function 
function test_input($data) {
  $data = trim($data);
  $data = stripslashes($data);
  $data = htmlspecialchars($data);
  return $data;

 }
?>

php form validation

<label for="name">Name</label>
  <div>
    <input type="text" name="name" id="name" value="">
  </div>

<label for="address">Address</label>
  <div>
    <input type="text" name="address" id="address" value="">
  </div>

<label for="email">Email</label>
  <div>
    <input type="text" name="email" id="email" value="">
  </div>