php - MySQL - PDO - Allow if POSTS are NULL -


if fill every input in form, data go database, when don't fill input telephone, data not go database , give error :

error sqlstate 23000 integrity constraint violation 1048 column 'telephone' cannot null

so means, if field telephone empty, , click submit data not go database.

so question is: how can allow if textinput 'telephone' not filled, data still go database?

this .php

<?php   include("dbconfig.php");  if( isset($_post['name']) ) {  try {       $date= date('d.m.y');     $tijd= date("h:i a");     $ip = $_server['remote_addr'];      $conn = new pdo('mysql:host=localhost;dbname=*****', $username, $password);     $conn->setattribute(pdo::attr_errmode, pdo::errmode_exception);        $mhbt = $conn->prepare("insert orders (name, email, telephone, city) values (?, ?, ?, ?)");     $mhbt->bindparam(1, $_post["name"]);     $mhbt->bindparam(2, $_post["email"]);     $mhbt->bindparam(3, $_post["telephone"]);     $mhbt->bindparam(4, $_post["city"]);       $mhbt->bindparam(5, $date);     $mhbt->bindparam(6, $tijd);     $mhbt->bindparam(7, $ip);      $mhbt->execute();  } catch(pdoexception $e) {     echo 'error: ' . $e->getmessage(); }  }    ?>

be careful when ever creating columns not null attribute. need pass value when want save data table.

change in table. change default value of telephone field null. if no value assigned automatically null added telephone field.

just query this:- alter table orders modify column telephone varchar(15) null

note:- more @ db level. give relaxation future problems.thanks.


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