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nagiosql/functions/mysqli_class.php

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<?php
///////////////////////////////////////////////////////////////////////////////
//
// Common utilities
//
///////////////////////////////////////////////////////////////////////////////
//
// (c) 2005-2017 by Martin Willisegger
//
// Project : Common scripts
// Component : MySQLi data processing class
// Date : $LastChangedDate: 2017-06-22 13:39:15 +0200 (Thu, 22 Jun 2017) $
// Author : $LastChangedBy: martin $
// Version : 3.3.0
// Revision : $LastChangedRevision: 7 $
// SVN-ID : $Id: mysqli_class.php 7 2017-06-22 11:39:15Z martin $
//
///////////////////////////////////////////////////////////////////////////////////////////////
//
///////////////////////////////////////////////////////////////////////////////////////////////
//
// Class: Common database functions for MySQL (mysqli database module)
//
///////////////////////////////////////////////////////////////////////////////////////////////
//
// Includes any functions to communicate with an MySQL database server
//
// Name: mysqlidb
//
// Class variables: $arrParams Array including the server settings
// ---------------- $strErrorMessage Database error string
// $error Boolean - Error true/false
// $strDBId Database connection id
// $intLastId ID of last dataset
// $intAffectedRows Counter variable of all affected data dows
// $booSSLuse Use SSL connection
// (INSERT/DELETE/UPDATE)
//
// Parameters: $arrParams['server'] -> DB server name
// ----------- $arrParams['port'] -> DB server port
// $arrParams['user'] -> DB server username
// $arrParams['password'] -> DB server password
// $arrParams['database'] -> DB server database name
//
///////////////////////////////////////////////////////////////////////////////////////////////
class mysqlidb {
// Define class variables
var $error = false; // Will be filled in functions
var $strDBId = ""; // Will be filled in functions
var $intLastId = 0; // Will be filled in functions
var $intAffectedRows = 0; // Will be filled in functions
var $strErrorMessage = ""; // Will be filled in functions
var $booSSLuse = false; // Defines if SSL is used or not
var $arrParams = ""; // Must be filled in while initialization
var $arrSQLdef = ""; // Must be filled in while initialization
var $strSQLQuote1 = "`"; // Quote char for table or row names
var $strSQLQuote2 = "'"; // Quote char for table or row names
///////////////////////////////////////////////////////////////////////////////////////////
// Class constructor
///////////////////////////////////////////////////////////////////////////////////////////
//
// Activities during initialisation
//
///////////////////////////////////////////////////////////////////////////////////////////
function __construct() {
$this->arrParams['server'] = "";
$this->arrParams['port'] = 0;
$this->arrParams['username'] = "";
$this->arrParams['password'] = "";
$this->arrParams['database'] = "";
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Connect to database
///////////////////////////////////////////////////////////////////////////////////////////
//
// Opens a connection to the database server and select a database
//
//
// Return value: true successful
// false error
// Status message is stored in class variable $this->strErrorMessage
//
///////////////////////////////////////////////////////////////////////////////////////////
function getdatabase() {
$this->dbconnect();
if ($this->error == true) {
return false;
}
$this->dbselect();
if ($this->error == true) {
return false;
}
return true;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Get a single dataset field value
///////////////////////////////////////////////////////////////////////////////////////////
//
// Sends an SQL statement to the server and returns the result of the first data field
//
// Parameters: $strSQL SQL Statement
//
// Return value: <data> = successful
// <empty> = error
// Status message is stored in class variable $this->strErrorMessage
//
///////////////////////////////////////////////////////////////////////////////////////////
function getFieldData($strSQL) {
// Reset error variables
$this->strErrorMessage = "";
$this->error = false;
// Send the SQL statement to the server
$resQuery = mysqli_query($this->strDBId,$strSQL);
// Error processing
if ($resQuery && (mysqli_num_rows($resQuery) != 0) && (mysqli_error($this->strDBId) == "")) {
// Return the field value from position 0/0
$arrDataset = mysqli_fetch_array($resQuery,MYSQLI_NUM);
return $arrDataset[0];
} else if (mysqli_error($this->strDBId) != "") {
$this->strErrorMessage .= mysqli_error($this->strDBId)."::";
$this->error = true;
return("");
}
return("");
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Get a single dataset
///////////////////////////////////////////////////////////////////////////////////////////
//
// Sends an SQL statement to the server and returns the result of the first data set
//
// Parameters: $strSQL SQL Statement
// $arrDataset Return value including the data set
//
// Return value: true = successful
// false = error
// Status message is stored in class variable $this->strErrorMessage
//
///////////////////////////////////////////////////////////////////////////////////////////
function getSingleDataset($strSQL,&$arrDataset) {
$arrDataset = "";
// Reset error variables
$this->strErrorMessage = "";
$this->error = false;
// Send the SQL statement to the server
$resQuery = mysqli_query($this->strDBId,$strSQL);
// Error processing
if ($resQuery && (mysqli_num_rows($resQuery) != 0) && (mysqli_error($this->strDBId) == "")) {
// Put the values into the array
$arrDataset = mysqli_fetch_array($resQuery,MYSQLI_ASSOC);
return true;
} else if (mysqli_error($this->strDBId) != "") {
$this->strErrorMessage .= mysqli_error($this->strDBId)."::";
$this->error = true;
return false;
}
return true;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Get a full data part
///////////////////////////////////////////////////////////////////////////////////////////
//
// Sends an SQL statement to the server and returns the result inside a data array
//
// Parameters: $strSQL SQL Statement
// $arrDataset Return value including the data records
// $intDataCount Return value including the number of the records
//
// Return value: true = successful
// false = error
// Status message is stored in class variable $this->strErrorMessage
//
///////////////////////////////////////////////////////////////////////////////////////////
function getDataArray($strSQL,&$arrDataset,&$intDataCount) {
$arrDataset = "";
$intDataCount = 0;
// Reset error variables
$this->strErrorMessage = "";
$this->error = false;
// Send the SQL statement to the server
$resQuery = mysqli_query($this->strDBId,$strSQL);
// Error processing
if ($resQuery && (mysqli_num_rows($resQuery) != 0) && (mysqli_error($this->strDBId) == "")) {
$intDataCount = mysqli_num_rows($resQuery);
$i = 0;
// Put the values into the array
while ($arrDataTemp = mysqli_fetch_array($resQuery,MYSQLI_ASSOC)) {
foreach ($arrDataTemp AS $key => $value) {
$arrDataset[$i][$key] = $value;
}
$i++;
}
return true;
} else if (mysqli_error($this->strDBId) != "") {
$this->strErrorMessage .= mysqli_error($this->strDBId)."::";
$this->error = true;
return false;
}
return true;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Insert/update/delete data
///////////////////////////////////////////////////////////////////////////////////////////
//
// Insert/update or delete data
//
// Parameters: $strSQL SQL Statement
// $this->intLastId Dataset insert ID
// $this->intAffectedRows The number of the affected records
//
// Return value: true = successful
// false = error
// Status message is stored in class variable $this->strErrorMessage
//
///////////////////////////////////////////////////////////////////////////////////////////
function insertData($strSQL) {
// Reset error variables
$this->strErrorMessage = "";
$this->error = false;
// Send the SQL statement to the server
$resQuery = mysqli_query($this->strDBId,$strSQL);
// Error processing
if (mysqli_error($this->strDBId) == "") {
$this->intLastId = mysqli_insert_id($this->strDBId);
$this->intAffectedRows = mysqli_affected_rows($this->strDBId);
return true;
} else {
$this->strErrorMessage .= mysqli_error($this->strDBId)."::";
$this->error = true;
return false;
}
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Counts data rows
///////////////////////////////////////////////////////////////////////////////////////////
//
// Counts the number of records
//
// Parameters: $strSQL SQL Statement
//
// Return value: <number> = successful
// 0 = no datasets or error
// Status message is stored in class variable $this->strErrorMessage
//
///////////////////////////////////////////////////////////////////////////////////////////
function countRows($strSQL) {
// Reset error variables
$this->strErrorMessage = "";
$this->error = false;
// Send the SQL statement to the server
$resQuery = mysqli_query($this->strDBId,$strSQL);
// Error processing
if ($resQuery && (mysqli_error($this->strDBId) == "")) {
return mysqli_num_rows($resQuery);
} else {
$this->strErrorMessage .= mysqli_error($this->strDBId);
$this->error = true;
return 0;
}
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Use mysqli_real_escape_string
///////////////////////////////////////////////////////////////////////////////////////////
//
// Returns a safe insert string for database manipulations
//
// Value: $strInput Input String
//
// Return value: $strOutput Output String
//
///////////////////////////////////////////////////////////////////////////////////////////
function real_escape($strInput) {
return mysqli_real_escape_string($this->strDBId,$strInput);
}
///////////////////////////////////////////////////////////////////////////////////////////
//
// Assistant functions
//
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Initialize a mysql database connection
///////////////////////////////////////////////////////////////////////////////////////////
//
// Return value: true
//
///////////////////////////////////////////////////////////////////////////////////////////
function dbinit() {
$this->strDBId = mysqli_init();
return true;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Connect to database server
///////////////////////////////////////////////////////////////////////////////////////////
//
// Parameters: $dbserver Server name
// $dbuser Database user
// $dbpasswd Database password
// $dbname Database name
// $dbport TCP port
//
// Return value: true successful
// false error
// Status message is stored in class variable $this->strErrorMessage
//
///////////////////////////////////////////////////////////////////////////////////////////
function dbconnect($dbserver=NULL,$dbport=NULL,$dbuser=NULL,$dbpasswd=NULL) {
// Reset error variables
$this->strErrorMessage = "";
$this->error = false;
// Get parameters
if ($dbserver == NULL) $dbserver = $this->arrParams['server'];
if ($dbport == NULL) $dbport = $this->arrParams['port'];
if ($dbuser == NULL) $dbuser = $this->arrParams['username'];
if ($dbpasswd == NULL) $dbpasswd = $this->arrParams['password'];
// Not all parameters available
if (($dbserver == "") || ($dbuser == "") || ($dbpasswd == "")) {
$this->strErrorMessage .= gettext("Missing server connection parameter!")."::";
$this->error = true;
return false;
}
$this->dbinit();
if ($this->booSSLuse == true) {
// TO BE DEFINED
}
$intErrorReporting = error_reporting();
error_reporting(0);
if ($dbport == 0) {
$booReturn = mysqli_real_connect($this->strDBId,$dbserver,$dbuser,$dbpasswd);
} else {
$booReturn = mysqli_real_connect($this->strDBId,$dbserver,$dbuser,$dbpasswd,NULL,$dbport);
}
$arrError = error_get_last();
error_reporting($intErrorReporting);
// Connection fails
if($booReturn == false) {
$this->strErrorMessage = "[".$dbserver."] ".gettext("Connection to the database server has failed by reason:")." ::";
if (mysqli_connect_error($this->strDBId) != "") $this->strErrorMessage .= mysqli_connect_error($this->strDBId)."::";
$this->error = true;
return false;
}
return true;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: select database
///////////////////////////////////////////////////////////////////////////////////////////
//
// Parameters: $database Database name
//
// Return value: true = successful
// false = error
// Status message is stored in class variable $this->strErrorMessage
//
///////////////////////////////////////////////////////////////////////////////////////////
function dbselect($database=NULL) {
// Reset error variables
$this->strErrorMessage = "";
$this->error = false;
// Get parameters
if ($database == NULL) $database = $this->arrParams['database'];
// Not all parameters available
if ($database == "") {
$this->strErrorMessage .= gettext("Missing database connection parameter!")."::";
$this->error = true;
return false;
}
$bolConnect = mysqli_select_db($this->strDBId,$database);
// Session cannot be etablished
if(!$bolConnect) {
$this->strErrorMessage .= "[".$database."] ".gettext("Connection to the database has failed by reason:")." ::";
$this->strErrorMessage .= mysqli_error($this->strDBId)."::";
$this->error = true;
return false;
}
$resQuery = mysqli_query($this->strDBId,"set names 'utf8'");
if (mysqli_error($this->strDBId) != "") {
$this->strErrorMessage .= mysqli_error($this->strDBId)."::";
$this->error = true;
return false;
}
$resQuery = mysqli_query($this->strDBId,"set session sql_mode = 'NO_ENGINE_SUBSTITUTION'");
if (mysqli_error($this->strDBId) != "") {
$this->strErrorMessage .= mysqli_error($this->strDBId)."::";
$this->error = true;
return false;
}
return true;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Set SSL parameters
///////////////////////////////////////////////////////////////////////////////////////////
//
// Parameters: $sslkey SSL key
// $sslcert SSL certificate
// $sslca SSL CA file (optional)
// $sslpath SSL certificate path (optional)
// $sslcypher SSL cypher (optional)
//
// Return value: true successful
// The mysqli_ssl_set function always returns TRUE!
//
///////////////////////////////////////////////////////////////////////////////////////////
function dbsetssl($sslkey,$sslcert,$sslca=NULL,$sslpath=NULL,$sslcypher=NULL) {
// Reset error variables
$this->strErrorMessage = "";
$this->error = false;
// Values are missing
if (($sslkey == "") || ($sslcert == "")) {
$this->strErrorMessage = gettext("Missing MySQL SSL parameter!")."::";
$this->error = true;
return false;
}
mysqli_ssl_set($this->strDBId,$sslkey,$sslcert,$sslca,$sslpath,$sslcypher);
return true;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Function: Close database server connectuon
///////////////////////////////////////////////////////////////////////////////////////////
//
// Value: none
//
// Return value: true if successful, false if failed
//
///////////////////////////////////////////////////////////////////////////////////////////
function dbdisconnect() {
mysqli_close($this->strDBId);
return true;
}
}
?>
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