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POchecking the state of checkbox using PHP (For t's & c's)
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copied!<p>I am abit stuck on getting the state of a checkbox via PHP. I have spent the past 2 hours on google trying different methods but nothing seems to work...</p> <p>Basically I need the logic to say "if it is not checked, add an error".</p> <p>I have tried the following methods:</p> <pre><code>if(!isset($_POST['terms_and_conditions'])){ $this->addError("You must agree to our terms and conditions"); } if(isset($_POST['terms_and_conditions']) && $_POST['terms_and_conditions'] == 'true'){ $this->addError("You must agree to our terms and conditions"); } if(!isset($_POST['terms_and_conditions']) && !$_POST['terms_and_conditions'] == 'true'){ $this->addError("You must agree to our terms and conditions"); } if($_POST['terms_and_conditions'] == "false"){ $this->addError("You must agree to our terms and conditions"); } if($_POST['terms_and_conditions'] == false){ $this->addError("You must agree to our terms and conditions"); } </code></pre> <p>and here is the code for the checkbox:</p> <pre><code><div id="field"> <input type="checkbox" value="false" name="terms_and_conditions" id="terms_and_conditions"/>&nbsp;<label for="terms_and_conditions">By clicking this you agree to this site's <a href="terms_and_conditions.php">Terms and Conditions</a></label> </div> </code></pre> <p>am I being stupid and going wrong somewhere? It will only put the error out using this method and if the box IS checked (which is needed):</p> <pre><code>if(isset($_POST['terms_and_conditions'])){ $this->addError("You must agree to our terms and conditions"); } </code></pre> <p>But then if I try make it a negative, ie: with an exclamation mark "!" it displays nothing?</p> <p>What would be my best way to get around this?</p> <p>Thanks for your time!</p> <p><strong>UPDATE</strong></p> <p>Here is the register.php file:</p> <pre><code><?php require 'core/init.php'; include_once 'includes/files/overall/header_main.php'; $error_array = array(); if(Input::exists()) { if(Token::check(Input::get('token'))) { $validate = new Validate(); $validation = $validate->check($_POST, array( 'username' => array( 'required' => true, 'min' => 2, 'max' => 20, 'unique' => 'users'), 'password' => array( 'required' => true, 'min' => 3), 'password_again' => array( 'required' => true, 'matches' => 'password'), 'name' => array( 'required' => false, 'min' => 2, 'max' => 50) )); if($validation->passed()) { $user = new User(); $bcrypt = new Bcrypt(); try { $user->create(array( 'username' => Input::get('username'), 'password' => $bcrypt->hash(Input::get('password')), 'name' => Input::get('name'), 'joined' => date('Y-m-d H:i:s'), 'group' => 1 )); Session::flash('home', 'You have been registered and can now log in!'); Redirect::to('index.php'); } catch(Exception $e) { die($e->getMessage()); } } else { foreach($validate->errors() as $error) { echo $error, '<br>'; } } } } ?> <section id="aside"> <aside class="register"> </aside> </section> <section id="main_content"> <h1>Sign Up</h1> <p class="bigger">Join 1000's of <b>docimes</b> and meet new companions - it's easy!</p> <?php if(!empty($error_array)){ echo '<ul>'; foreach($error_array as $error){ echo '<li>'. $error .'</li>'; } echo '</ul>'; } ?> <form action="" method="post"> <div id="field"> <label for="name">Name</label> <input type="text" name="name" value="<?php echo escape(Input::get('name')); ?>" placeholder="name" /> </div> <div id="field"> <label for="surname">Surname</label> <input type="text" name="surname" value="<?php echo escape(Input::get('surname')); ?>" placeholder="Surname" /> </div> <div id="field"> <label for="email">Email</label> <input type="text" name="email" value="<?php echo escape(Input::get('email')); ?>" placeholder="Email" /> </div> <div id="field"> <label for="username">Username</label> <input type="text" name="username" value="<?php echo escape(Input::get('username')); ?>" placeholder="Username" /> </div> <div id="field"> <label for="password">Password</label> <input type="password" name="password" value="" placeholder="Password" /> </div> <div id="field"> <label for="password_again">Password again</label> <input type="password" name="password_again" value="" placeholder="Password again" /> </div> <input type="hidden" name="token" value="<?php echo Token::generate(); ?>"/> <input type="submit" value="Signup" /> <div id="field"> <input type="checkbox" value="" name="terms_and_conditions" id="terms_and_conditions"/>&nbsp;<label for="terms_and_conditions">By clicking this you agree to this site's <a href="terms_and_conditions.php">Terms and Conditions</a></label> </div> </form> </section> <?php include_once 'includes/files/overall/footer_main.php'; ?> </code></pre> <p>and the validate.php class:</p> <pre><code><?php class Validate { private $_passed = false, $_errors = array(), $_db = null; public function __construct() { $this->_db = DB::getInstance(); } public function check($source, $items = array()) { foreach($items as $item => $rules) { foreach($rules as $rule => $rule_value) { $value = trim($source[$item]); if($rule === 'required' && $rule_value === true && empty($value)) { $this->addError("{$item} is required."); } else if (!empty($value)) { switch($rule) { case 'min': if(strlen($value) < $rule_value) { $this->addError("{$item} must be a minimum of {$rule_value} characters."); } break; case 'max': if(strlen($value) > $rule_value) { $this->addError("{$item} must be a maximum of {$rule_value} characters."); } break; case 'matches': if($value != $source[$rule_value]) { $this->addError("{$rule_value} must match {$item}."); } break; case 'unique': $check = $this->_db->get('users', array($item, '=', $value)); if($check->count()) { $this->addError("{$item} is already taken."); } break; case 'accepted': if($rule === 'accepted' && $rule_value === true){ $this->addError("You must agree to our terms and conditions"); } break; } } } } if(empty($this->_errors)) { $this->_passed = true; } return $this; } protected function addError($error) { $this->_errors[] = $error; } public function passed() { return $this->_passed; } public function errors() { return $this->_errors; } } </code></pre>

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