Online PHP editor | output for gI69L

<?php $arr = array( "email" => array(TRUE, TRUE, "E-mail:", "Enter email address", "Enter valid email address"), "name" => array(FALSE, FALSE, "Name:", "Enter full name", "Enter your full name"), "fname" => array(FALSE, FALSE, "First name:", "Enter first name", "Enter your first name"), "lname" => array(FALSE, FALSE, "Last name:", "Enter last name", "Enter your last name"), "age" => array(FALSE, FALSE, "Age:", "Enter age", "Enter your age"), "gender" => array(FALSE, FALSE, "Gender:", NULL, "Select your gender"), "phone" => array(FALSE, FALSE, "Phone:", "Enter phone number", "Enter your phone number"), "website" => array(FALSE, FALSE, "Website:", "Enter website address", "Enter your website address"), "country" => array(FALSE, FALSE, "Country:", NULL, "Select your country"), "state" => array(FALSE, FALSE, "State:", "Enter state name", "Enter your state name"), "city" => array(FALSE, FALSE, "City:", "Enter city name", "Enter your city name"), "address" => array(FALSE, FALSE, "Address:", "Enter your address", "Enter your address here"), "zip" => array(FALSE, FALSE, "Zip/Pin code:", "Enter zip/pin code", "Enter your zip/pin code"), ); $keys = array_keys($arr); echo implode('", "', $keys);