Hi everyone,
I am trying to validate a user registration form. User must enter letters and/or letters only.
//check username
$_POST['user_name'] = trim($_POST['user_name']);
$checkChar ='/^[a-zA-Z0-9]+$/';
if (!preg_match($checkChar, ($_POST['user_name']))); {
$error['char'] = 'Username must contain letters or numbers only';
}When I submit the error message keeps coming up when it should not.
Any thoughts?
Sorry,
I had a semicolon at end of line ending statement.
Hi everyone,
I am trying to validate a user registration form. User must enter letters and/or letters only.//check username $_POST['user_name'] = trim($_POST['user_name']); $checkChar ='/^[a-zA-Z0-9]+$/'; if (!preg_match($checkChar, ($_POST['user_name']))); { $error['char'] = 'Username must contain letters or numbers only'; }When I submit the error message keeps coming up when it should not.
Any thoughts?
I use following php code to validate i18n user name ($value)
if (preg_match('/[~!@#$%^&\*\(\)\+={}\[\]|\\:;"<>\?\/]/', $value))
return new ValidationError($field, $value, "$field has unavailable symbols: $value");We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.