PHP-MySQL-Class/class.MySQL.php at master · a1phanumeric/PHP-MySQL-Class · GitHub

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<?php

* Ed Rackham (http://github.com/a1phanumeric/PHP-MySQL-Class)

* Christopher Harms (http://github.com/neurotroph)

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

// MySQL Class v0.8.1

class MySQL {

// Base variables

public $lastError; // Holds the last error

public $lastQuery; // Holds the last query

public $result; // Holds the MySQL query result

public $records; // Holds the total number of records returned

public $affected; // Holds the total number of records affected

public $rawResults; // Holds raw 'arrayed' results

public $arrayedResult; // Holds an array of the result

private $hostname; // MySQL Hostname

private $username; // MySQL Username

private $password; // MySQL Password

private $database; // MySQL Database

private $databaseLink; // Database Connection Link

/* *******************

* Class Constructor *

* *******************/

function __construct($database, $username, $password, $hostname='localhost', $port=3306, $persistant = false){

$this->database = $database;

$this->username = $username;

$this->password = $password;

$this->hostname = $hostname.':'.$port;

$this->Connect($persistant);

}

/* *******************

* Class Destructor *

* *******************/

function __destruct(){

$this->closeConnection();

}

/* *******************

* Private Functions *

* *******************/

// Connects class to database

// $persistant (boolean) - Use persistant connection?

private function Connect($persistant = false){

$this->CloseConnection();

if($persistant){

$this->databaseLink = mysql_pconnect($this->hostname, $this->username, $this->password);

}else{

$this->databaseLink = mysql_connect($this->hostname, $this->username, $this->password);

}

if(!$this->databaseLink){

$this->lastError = 'Could not connect to server: ' . mysql_error($this->databaseLink);

return false;

}

if(!$this->UseDB()){

$this->lastError = 'Could not connect to database: ' . mysql_error($this->databaseLink);

return false;

}

$this->setCharset(); // TODO: remove forced charset find out a specific management

return true;

}

// Select database to use

private function UseDB(){

if(!mysql_select_db($this->database, $this->databaseLink)){

$this->lastError = 'Cannot select database: ' . mysql_error($this->databaseLink);

return false;

}else{

return true;

}

// Performs a 'mysql_real_escape_string' on the entire array/string

private function SecureData($data, $types=array()){

if(is_array($data)){

$i = 0;

foreach($data as $key=>$val){

if(!is_array($data[$key])){

$data[$key] = $this->CleanData($data[$key], $types[$i]);

$data[$key] = mysql_real_escape_string($data[$key], $this->databaseLink);

$i++;

}

}else{

$data = $this->CleanData($data, $types);

$data = mysql_real_escape_string($data, $this->databaseLink);

}

return $data;

}

// clean the variable with given types

// possible types: none, str, int, float, bool, datetime, ts2dt (given timestamp convert to mysql datetime)

// bonus types: hexcolor, email

private function CleanData($data, $type = ''){

switch($type) {

case 'none':

// useless do not reaffect just do nothing

//$data = $data;

break;

case 'str':

case 'string':

settype( $data, 'string');

break;

case 'int':

case 'integer':

settype( $data, 'integer');

break;

case 'float':

settype( $data, 'float');

break;

case 'bool':

case 'boolean':

settype( $data, 'boolean');

break;

// Y-m-d H:i:s

// 2014-01-01 12:30:30

case 'datetime':

$data = trim( $data );

$data = preg_replace('/[^\d\-: ]/i', '', $data);

preg_match( '/^([\d]{4}-[\d]{2}-[\d]{2} [\d]{2}:[\d]{2}:[\d]{2})$/', $data, $matches );

$data = $matches[1];

break;

case 'ts2dt':

settype( $data, 'integer');

$data = date('Y-m-d H:i:s', $data);

break;

// bonus types

case 'hexcolor':

preg_match( '/(#[0-9abcdef]{6})/i', $data, $matches );

$data = $matches[1];

break;

case 'email':

$data = filter_var($data, FILTER_VALIDATE_EMAIL);

break;

default:

break;

}

return $data;

}

/* ******************

* Public Functions *

* ******************/

// Executes MySQL query

public function executeSQL($query){

$this->lastQuery = $query;

if($this->result = mysql_query($query, $this->databaseLink)){

if (gettype($this->result) === 'resource') {

$this->records = @mysql_num_rows($this->result);

} else {

$this->records = 0;

}

$this->affected = @mysql_affected_rows($this->databaseLink);

if($this->records > 0){

$this->arrayResults();

return $this->arrayedResult;

}else{

return true;

}

}else{

$this->lastError = mysql_error($this->databaseLink);

return false;

}

public function commit(){

return mysql_query("COMMIT", $this->databaseLink);

}

public function rollback(){

return mysql_query("ROLLBACK", $this->databaseLink);

}

public function setCharset( $charset = 'UTF8' ) {

return mysql_set_charset ( $this->SecureData($charset,'string'), $this->databaseLink);

}

// Adds a record to the database based on the array key names

public function insert($table, $vars, $exclude = '', $datatypes=array()){

// Catch Exclusions

if($exclude == ''){

$exclude = array();

}

array_push($exclude, 'MAX_FILE_SIZE'); // Automatically exclude this one

// Prepare Variables

$vars = $this->SecureData($vars, $datatypes);

$query = "INSERT INTO `{$table}` SET ";

foreach($vars as $key=>$value){

if(in_array($key, $exclude)){

continue;

}

$query .= "`{$key}` = '{$value}', ";

}

$query = trim($query, ', ');

return $this->executeSQL($query);

}

// Deletes a record from the database

public function delete($table, $where='', $limit='', $like=false, $wheretypes=array()){

$query = "DELETE FROM `{$table}` WHERE ";

if(is_array($where) && $where != ''){

// Prepare Variables

$where = $this->SecureData($where, $wheretypes);

foreach($where as $key=>$value){

if($like){

$query .= "`{$key}` LIKE '%{$value}%' AND ";

}else{

$query .= "`{$key}` = '{$value}' AND ";

}

$query = substr($query, 0, -5);

}

if($limit != ''){

$query .= ' LIMIT ' . $limit;

}

$result = $this->executeSQL($query);

if($this->affected == 0){

return false;

}

return $result;

}

// Gets a single row from $from where $where is true

public function select($from, $where='', $orderBy='', $limit='', $like=false, $operand='AND',$cols='*', $wheretypes=array()){

// Catch Exceptions

if(trim($from) == ''){

return false;

}

$query = "SELECT {$cols} FROM `{$from}` WHERE ";

if(is_array($where) && $where != ''){

// Prepare Variables

$where = $this->SecureData($where, $wheretypes);

foreach($where as $key=>$value){

if($like){

$query .= "`{$key}` LIKE '%{$value}%' {$operand} ";

}else{

$query .= "`{$key}` = '{$value}' {$operand} ";

}

$query = substr($query, 0, -(strlen($operand)+2));

}else{

$query = substr($query, 0, -6);

}

if($orderBy != ''){

$query .= ' ORDER BY ' . $orderBy;

}

if($limit != ''){

$query .= ' LIMIT ' . $limit;

}

$result = $this->executeSQL($query);

if(is_array($result)) return $result;

return array();

}

// Updates a record in the database based on WHERE

public function update($table, $set, $where, $exclude = '', $datatypes=array(), $wheretypes=array()){

// Catch Exceptions

if(trim($table) == '' || !is_array($set) || !is_array($where)){

return false;

}

if($exclude == ''){

$exclude = array();

}

array_push($exclude, 'MAX_FILE_SIZE'); // Automatically exclude this one

$set = $this->SecureData($set, $datatypes);

$where = $this->SecureData($where,$wheretypes);

// SET

$query = "UPDATE `{$table}` SET ";

foreach($set as $key=>$value){

if(in_array($key, $exclude)){

continue;

}

$query .= "`{$key}` = '{$value}', ";

}

$query = substr($query, 0, -2);

// WHERE

$query .= ' WHERE ';

foreach($where as $key=>$value){

$query .= "`{$key}` = '{$value}' AND ";

}

$query = substr($query, 0, -5);

$result = $this->executeSQL($query);

if($this->affected == 0){

return false;

}

return $result;

}

// 'Arrays' a single result

public function arrayResult(){

$this->arrayedResult = mysql_fetch_assoc($this->result) or die (mysql_error($this->databaseLink));

return $this->arrayedResult;

}

// 'Arrays' multiple result

public function arrayResults(){

if($this->records == 1){

return $this->arrayResult();

}

$this->arrayedResult = array();

while ($data = mysql_fetch_assoc($this->result)){

$this->arrayedResult[] = $data;

}

return $this->arrayedResult;

}

// 'Arrays' multiple results with a key

public function arrayResultsWithKey($key='id'){

if(isset($this->arrayedResult)){

unset($this->arrayedResult);

}

$this->arrayedResult = array();

while($row = mysql_fetch_assoc($this->result)){

foreach($row as $theKey => $theValue){

$this->arrayedResult[$row[$key]][$theKey] = $theValue;

}

return $this->arrayedResult;

}

// Returns last insert ID

public function lastInsertID(){

return mysql_insert_id($this->databaseLink);

}

// Return number of rows

public function countRows($from, $where=''){

$result = $this->select($from, $where, '', '', false, 'AND','count(*)');

return $result["count(*)"];

}

// Closes the connections

public function closeConnection(){

if($this->databaseLink){

// Commit before closing just in case :)

$this->commit();

mysql_close($this->databaseLink);

}

PHP-MySQL-Class/class.MySQL.php at master · a1phanumeric/PHP-MySQL-Class · GitHub

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