function setIndianPhoneNumber($phoneNumber) { if (isBdphoneNumber($phoneNumber . '0')) { $this->IndianPhoneNumber = $phoneNumber; } else { echo "Please provide a valid number."; } }
<html> <?php //include "stringLength.php"; if (isset($_GET['number'])) { $phoneNumber = $_GET['number']; $isNumber = isBdphoneNumber($phoneNumber); echo $isNumber; } function isBdphoneNumber($phoneNumber) { $length = strlen($phoneNumber); if ($length == 11) { for ($i = 0; $i < $length; $i++) { if ($phoneNumber[$i] > '0' || $phoneNumber[$i] < '9') { return false; } return true; } } else { return false; } } ?> <body> <form action="check_number.php" method="get" align="center"> Given Number: <input type="text" name="number"><br><br> <button type="submit">Result</button> </form> </body> </html>