PHP form validation class
Are you bored to write long script to validate you user input? If yes I coded a user input validation PHP class. It’s very flexible and easy to use. This class can validate user e-mail, homepage url, text and other input formats.
Class features:
- validate and return entered one word (perfect for username and password validation, you can write custom regex for allowed chars, by default it allows only letters);
- validate and return entered text (may return formated text, strips tags or changes special HTML characters like <, >, & and others to character codes);
- validate and return integer number input;
- validate and return float number input;
- validate and return email input;
- validate and return www address input;
- validate and return password and password confirm match input;
- every form field may have required option;
- for every form field you may write custom error message;
Example of using validation class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | <?php require('validate.class.php'); $VD = new validate(); if ($_POST['form_submit']) { $VD->validate_data('username', $_POST['username'], array( 'isOneWord'=>array( 'min_chars'=>5, 'max_chars'=>20, 'regex'=>"/^[a-zA-Z0-9_\.]{1,}$/", 'required'=>true) ), 'Username not valid' ); $VD->validate_data('password', $_POST['password'], array( 'isOneWord'=>array( 'min_chars'=>6, 'max_chars'=>15, 'regex'=>"/^[a-zA-Z0-9_\.]{1,}$/", 'required'=>true) ), 'Password not valid' ); $VD->validate_data('email', $_POST['email'], array( 'isEmail'=>array( 'required'=>true) ), 'Email not valid' ); $VD->validate_data('details', $_POST['details'], array( 'isText'=>array( 'strip'=>true, 'required'=>true) ), 'Details not valid' ); $VD->validate_data('age', $_POST['age'], array( 'isInteger'=>array( 'required'=>true )), 'You must fill in your age'); if (count($VD->errors) > 0) { echo 'Please fix following errors:'; foreach ($VD->errors as $error) { echo $error.'<br />'; } } else { $link = mysql_connect($host, $user, $pass); mysql_select_db($name, $link); mysql_query("INSERT INTO users VALUES ( '".$VD->return['username']."', '".md5($VD->return['password'])."', '".$VD->return['email']."', '".$VD->return['details']."', ".$VD->return['age']." )"); } } ?> |
Download form validation class
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Hello! Good Site! Thanks you! ohfbeukhesuuu
how to use this class ? can you create simple code (login form) and use your class .. thx’s
Nice work
Just some tips:
- For something to be considered a class or object, it should have data members and methods. You should best decompose the code into a couple of methods, and have private data members to store the state of the class.
- And as a general rule of thumb, a method should be no longer than about 25 lines. More than that may indicate problems with the design.
Hope that helps!
Great code, i agree that is not a proper class but you can still use simply as functions. Five stars from me!!!
Cheers