PHP-DB-Manager

PHP DB Manager aims to provide easy-to-use wrapper for MySQL database. Features:

• UTF-8 Connection
• Support Transaction
• Support MySQLi PHP driver
• Support custom port
• Query Count information
• Connection information

Coming Soon Features:

• PDO support

Requirements:

• PHP v5.3+ (Compatible with PHP7)
• MySQL v4.1+ (tested on MySQL 8.0)
• PHP MySQLi module enabled

QUICK START

Step 1: Install Composer by issuing the following command in your project root:

curl -s http://getcomposer.org/installer | php

Step 2: create a composer.json configuration file in the same folder, with the following contents:

{
  "require": {
    "shivanraptor/php-db-manager": ">=1.0"
  }
}

Step 3: Execute the following command to install the library:

php composer.phar install

Step 4: Create a config.db.inc.php in conf/ folder to configure the connection parameters to MySQL database

<?php
$db_settings = array(
	'DB_ENCODING' 		=> 'utf8',
	'DB_HOST' 			=> 'localhost',
	'DB_SCHEMA' 		=> 'your_schema',
	'DB_USERNAME' 		=> 'root',
	'DB_PASSWORD' 		=> 'your_password',
	'DB_PREFIX' 		=> 'test_',
);
while (list($key, $value) = each($db_settings)) {
	define($key, $value);
}
?>

Parameters explained:

DB_USERNAME : user name of MySQL database account
DB_PASSWORD : password of MySQL database account
DB_HOST 	: host name / IP of MySQL database ( in most cases, it is "localhost" )
DB_SCHEMA 	: the desired schema of MySQL database
DB_ENCODING : encoding of MySQL database connection
DB_PREFIX 	: table prefix of MySQL database tables ( see Example 1 below )

Step 5: Include the DB Manager to your codes and follow the sample codes to write your logic:

// Use Composer to autoload DB Manager
require_once('vendor/autoload.php');
// Require the Configuration file
require_once('conf/config.db.inc.php');

Parameters of Constructor

host 		: Host of MySQL server , e.g. localhost or 192.168.1.123 ( make sure TCP/IP connection of MySQL server is enabled )
user 		: Username
pass		: Password
_debugMode		: Debug mode ( set TRUE to enable , set FALSE to disable )
charSet		: Character set of connection ( defaults to UTF-8 )
autoCommit		: Transaction Auto Commit mode ( set TRUE to enable , set FALSE to disable )
port		: Server Port of MySQL server ( defaults to 3306 , standard port of MySQL server )
persistent		: Persistent Connection mode ( set TRUE to enable , set FALSE to disable )

Sample Codes

Example 1: Simple SELECT action

// Use Composer to autoload DB Manager
require_once('vendor/autoload.php');
// Require the Configuration file
require_once('conf/config.db.inc.php');

// Initialization
$db = new dbManager(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_SCHEMA);

// Query & Get the result
$sql = "SELECT * FROM " . DB_PREFIX . "example";
$rs = $db->query($sql);
while($row = $db->result($rs)) {
	// do your action here, for example...
	echo $row['action_id'];
}

// Query & Get the result
$sql = "SELECT * FROM " . DB_PREFIX . "example";
$rows = $db->rs($sql);
foreach($rows as $row) {
	// do your action here, for example...
	echo $row['action_id'];
}

Example 2: Simple INSERT action

// Use Composer to autoload DB Manager
require_once('vendor/autoload.php');
// Require the Configuration file
require_once('conf/config.db.inc.php');

// Initialization
$db = new dbManager(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_SCHEMA);

// DBManager - Query & Get the result
$sql = "INSERT INTO tbl_example VALUES ($value1, '$value2')";
$db->query($sql);

$row_id = $db->insert_id();

Other Functions

1. Backward compatible version:

   $db = new dbManager(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_SCHEMA);

2. Support of charaset, disable debug message

   $db = new dbManager(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_SCHEMA, FALSE, 'utf8mb4');

3. To check connection error:

   if($db->error !== NULL) { // error exists }

4. Escape String

   $db->escape_string($str);

5. Use MySQLi PHP functions directly, e.g. mysqli::rollback()

   $db->mysqli->rollback();

6. Prepared Statement

   $sql = "SELECT field_name1, field_name2 FROM table_name WHERE id = ?"; 	// cannot use "SELECT *"
   $params = array('i' => 1); 							// i = integer , d = double , s = string , b = blob
   $result = $db->query_prepare($sql, $params);
   if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
       $row = $db->result($result);
       echo $row['field_name1'];
   } else {
       foreach($result as $row) {
    	   echo $row['field_name1'] . ' ' .$row['field_name2'];
       }
   }
   

Version History

v1.0

• initial release v1.0.1
• bug fix v1.6
• Remove log4php dependencies

Technical Support

findme@raptor.hk ( please specify email subject: "dbManager for MySQLi" ) or ask in Stack Overflow using tag : php-db-manager

COPYRIGHT

Copyright (c) 2009 Raptor K

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