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Informations about the package mysql-pdo-class

Intro

Just another PHP class to cope with MySQL via PDO.

Installation

Use composer:

composer require qrzysio/mysql-pdo-class

Usage

require 'vendor/autoload.php';

$db = new Db();

$db->query('INSERT INTO mytable (FName, LName, Age, Gender) VALUES (:fname, :lname, :age, :gender)');
$db->bind(':fname', 'John');
$db->bind(':lname', 'Smith');
$db->bind(':age', '24');
$db->bind(':gender', 'male');
$db->exec();

echo $db->lastId();

*** Transactions ***

$db->beginTrans();

$db->query('INSERT INTO mytable (FName, LName, Age, Gender) VALUES (:fname, :lname, :age, :gender)');
$db->bind(':fname', 'Jenny');
$db->bind(':lname', 'Smith');
$db->bind(':age', '23');
$db->bind(':gender', 'female');
$db->exec();

$db->bind(':fname', 'Jilly');
$db->bind(':lname', 'Smith');
$db->bind(':age', '25');
$db->bind(':gender', 'female');
$db->exec();

echo $db->lastId();

$db->endTrans();

*** Select a single row ***

$db->query('SELECT FName, LName, Age, Gender FROM mytable WHERE FName = :fname');
$db->bind(':fname', 'Jenny');
$row = $db->single();

*** Select multiple rows ***

$db->query('SELECT FName, LName, Age, Gender FROM mytable WHERE LName = :lname');
$db->bind(':lname', 'Smith');
$rows = $db->fetch();

echo $db->numrows();

Try { } catch { } usage

It's very convenient to use try and catch blocks.

try {
  $db->query('INSERT INTO mytable (FName, LName, Age, Gender) VALUES (:fname, :lname, :age, :gender)');
  $db->bind(':fname', 'Jenny');
  $db->bind(':lname', 'Smith');
  $db->bind(':age', '23');
  $db->bind(':gender', 'female');
  $db->exec();
} catch (PDOException $e) {
  echo '<p>Something went wrong!</p>';
  echo '<p><strong>Details:</strong></p>';
  echo '<p>'.$e->getMessage().'</p>';  
}

Or more useful method.

try {

  // doing some operations
  ValidateFirst();

  // adding to database
  try {
    $db->query('INSERT INTO mytable (FName, LName, Age, Gender) VALUES (:fname, :lname, :age, :gender)');
    $db->bind(':fname', 'Jenny');
    $db->bind(':lname', 'Smith');
    $db->bind(':age', '23');
    $db->bind(':gender', 'female');
    $db->exec();    
  } catch (PDOException $e) {
    throw new Exception('We have an issue with this code!');    
  }

  // additional operations
  DoSomehing();

} catch (Exception $e) {
  echo '<p>Something went wrong!</p>';
  echo '<p><strong>Details:</strong></p>';
  echo '<p>'.$e->getMessage().'</p>';  
}

All methods

exec() - execute SQL query

fetch() - fetch all rows and returns an array

single() - fetch only one row as an array

numrows() - returns number of rows affected or counted

lastId() - last inserted ID

cancel() - rollback the operation

debug() - returns debugDumpParams() method from PDO

beginTrans() - begins a transaction

endTrans() - ends a transaction  

License

This script was made by a bloger and published here: http://culttt.com/2012/10/01/roll-your-own-pdo-php-class/

There is no info about license, so I believe it's MIT. I did some small changes in the code and perhaps will do more in the future. According to the former author, license of this script is MIT.

All versions of mysql-pdo-class with dependencies

PHP Build Version
Package Version
Requires php Version >=5.1.0
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