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@Martyr2

Martyr2/db_pdo_class.php

Last active Nov 29, 2018
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Database PDO wrapper class for PHP
<?php
/**
* Database PDO Wrapper
*/
if (!class_exists('Database')) {
// Define configuration
define("DB_HOST", "localhost");
define("DB_USER", "username");
define("DB_PASS", "pass");
define("DB_NAME", "dbname");
class Database extends PDO {
private $host = DB_HOST;
private $user = DB_USER;
private $pass = DB_PASS;
private $dbname = DB_NAME;
private $dbh;
private $error;
private $stmt;
public function __construct($dbuser = "", $dbpass = "") {
if (!empty($dbuser)) { $this->user = $dbuser; }
if (!empty($dbpass)) { $this->pass = $dbpass; }
// Set DSN
$dsn = 'mysql:host=' . $this->host . ';dbname=' . $this->dbname;
// Set options
$options = array(
PDO::ATTR_PERSISTENT => true,
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
);
// Create a new PDO instanace
try {
$this->dbh = new PDO($dsn, $this->user, $this->pass, $options);
$this->dbh->exec("SET NAMES 'utf8'");
}
// Catch any errors
catch (PDOException $e) {
$this->error = $e->getMessage();
}
}
// Prepare
public function query($query) {
$this->stmt = $this->dbh->prepare($query);
}
// Bind
public function bind($param, $value, $type = null) {
if (is_null($type)) {
switch (true) {
case is_int($value):
$type = PDO::PARAM_INT;
break;
case is_bool($value):
$type = PDO::PARAM_BOOL;
break;
case is_null($value):
$type = PDO::PARAM_NULL;
break;
default:
$type = PDO::PARAM_STR;
}
}
$this->stmt->bindValue($param, $value, $type);
}
// Execute
public function execute() {
return $this->stmt->execute();
}
// Result Set
public function resultset($fetchType = PDO::FETCH_ASSOC) {
$this->execute();
return $this->stmt->fetchAll($fetchType);
}
// Single
public function single($fetchType = PDO::FETCH_ASSOC) {
$this->execute();
return $this->stmt->fetch($fetchType);
}
// Row Count
public function rowCount() {
return $this->stmt->rowCount();
}
// Last Insert Id
public function lastInsertId($seqname = NULL) {
return $this->dbh->lastInsertId($seqname);
}
// Transactions
public function beginTransaction() {
return $this->dbh->beginTransaction();
}
public function endTransaction() {
return $this->dbh->commit();
}
public function cancelTransaction() {
return $this->dbh->rollBack();
}
// Debug Dump Parameters
public function debugDumpParams() {
return $this->stmt->debugDumpParams();
}
}
}
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