PHP PDO connection failure [duplicate] - php

Question

This question already has answers here:
Why does this PDO statement silently fail?
(2 answers)
Closed 3 years ago.
Hey, so I am new with PDO, and I cannot figure out why my data will not insert into my tables. Much appreciated!
<?php
include("class.php");
$dbhost = "localhost";
$dbname = "db";
$dbuser = "user";
$dbpass = "pass";
$conn = new PDO("mysql:host=$dbhost;dbname=$dbname",$dbuser,$dbpass);
$username = $_POST['username'];
$password = $_POST['password'];
$email = strtolower($_POST['email']);
$firstName = ucwords(strtolower($_POST['firstName']));
$lastName = ucwords(strtolower($_POST['lastName']));
$date = date("Y-m-d");
$hash = Secure::Encrypt($username, $password);
$sql = "INSERT INTO users (username,password,email,firstName,lastName,createDate) VALUES (:username,:password,:email,:firstName,:lastName,:date)";
$q = $conn->prepare($sql);
$q->execute(array(
':username'=>$username,
':password'=>$hash,
':email'=>$email,
':firstName'=>$firstName,
':lastName'=>$lastName,
':date'=>$date));
?>

Answer 1

If all of your table's field names match, I have found that PDO will sometimes fail if one of your array variables are empty.
to find out if any errors are being thrown, add the following after your new PDO declaration (PDO error reporting is silent by default):
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
Then add try/catch around each PDO activity as follows:
try {
..Code Here...
}catch (PDOException $err) {
echo $err->getMessage();
}
Final Code:
<?php
include("class.php");
$dbhost = "localhost";
$dbname = "db";
$dbuser = "user";
$dbpass = "pass";
$conn = new PDO("mysql:host=$dbhost;dbname=$dbname",$dbuser,$dbpass);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$username = $_POST['username'];
$password = $_POST['password'];
$email = strtolower($_POST['email']);
$firstName = ucwords(strtolower($_POST['firstName']));
$lastName = ucwords(strtolower($_POST['lastName']));
$date = date("Y-m-d");
$hash = Secure::Encrypt($username, $password);
$sql = "INSERT INTO users (username,password,email,firstName,lastName,createDate) VALUES (:username,:password,:email,:firstName,:lastName,:date)";
try {
$q = $conn->prepare($sql);
}catch (PDOException $err) {
echo 'Prepare Failed: '.$err->getMessage();
}
try {
$q->execute(array(
':username'=>$username,
':password'=>$hash,
':email'=>$email,
':firstName'=>$firstName,
':lastName'=>$lastName,
':date'=>$date));
}catch (PDOException $err) {
echo 'Execute Failed: '.$err->getMessage();
}
?>
Then please update with any errors you receive :)