<?php
class DBHandler
{
public static function Connect($DB_HOST, $DB_NAME, $DB_USER, $DB_PASS)
{
try {
//mysql conn
$con=mysql_connect($DB_HOST,$DB_USER,$DB_PASS);
$db=mysql_select_db($DB_NAME);
} catch (PDOException $e) {
print "Error!: " . $e->getMessage() . "<br/>";
die();
}
}
public function DBHandler($DB_HOST, $DB_NAME, $DB_USER, $DB_PASS)
{
return $this->__construct($DB_HOST, $DB_NAME, $DB_USER, $DB_PASS);
}
public function __construct($DB_HOST, $DB_NAME, $DB_USER, $DB_PASS)
{
self::Connect($DB_HOST, $DB_NAME, $DB_USER, $DB_PASS);
}
/**
* select
* @param string $sql An SQL string
* @param array $array Paramters to bind
* @param constant $fetchMode A PDO Fetch mode
* @return mixed
*/
public static function Query($strTable, $arFields = '*', $strWhere = '', $strOrder = '',$intRecords=10, $intPage = 1 )
{
if($strWhere != '')
{
$strWhere = ' where '. $strWhere;
}
if($strOrder != '')
{
$strOrder = 'order by '.$strOrder;
}
$limit = sprintf(' limit %d, %d', ($intPage-1) * $intRecords, $intRecords);
if( is_array( $arFields )){
$strFields = implode( ',', $arFields);
}else{
$strFields = $arFields;
if( $strFields == ''){ $strFields = '*';}
}
$strSQL = "SELECT $strFields FROM $strTable $strWhere $strOrder $limit";
$objRes = mysql_query($strSQL) or die('Invalid SQL: '.mysql_error());
return $objRes;
}
public static function QueryArray($strTable, $arFields = '*', $strWhere = '', $strOrder = '',$intRecords=10, $intPage = 1 )
{
$objRes = self::Query( $strTable, $arFields, $strWhere, $strOrder, $intRecords, $intPage);
return self::MySQL_to_Array($objRes);
}
/**
* insert
* @param string $table A name of table to insert into
* @param string $data An associative array
*/
public static function insert($table, $data)
{
$fieldNames = implode('`, `', array_keys($data));
$fieldValues = implode('", "', array_values($data));
$sth = mysql_query("INSERT INTO $table (`$fieldNames`) VALUES (\"$fieldValues\")");
return mysql_insert_id();
}
public static function buildUpdateString( $arrData, $strDelim = ', ' ){
$arrRows = array();
foreach($arrData as $key=> $value) {
$arrRows[] = "`$key`='$value'";
}
return implode( $strDelim, $arrRows );
}
/**
* update
* @param string $table A name of table to insert into
* @param string $data An associative array
* @param string $where the WHERE query part
*/
public static function update($table, $data, $where)
{
//ksort($data);
$fieldDetails = NULL;
$fieldDetails = self::buildUpdateString( $data );
$sqlStr="UPDATE $table SET $fieldDetails WHERE $where";
$sth = mysql_query($sqlStr) or die('SQL Error: '.mysql_error());
return $sth;
}
/**
* delete
*
* @param string $table
* @param string $where
* @param integer $limit
* @return integer Affected Rows
*/
public static function delete($table, $where='')
{
if ($where=='')
return false;
$strSql="DELETE FROM $table WHERE $where ";
//echo $strSql;
mysql_query($strSql) or die(mysql_error());
return true;
}
/**
Public function to make database query
*/
public static function MySQL_to_Array( $arResult, $arFields = '' )
{
if( !is_array( $arFields ))
{
$totFields = mysql_num_fields( $arResult );
$i = 0;
while( $i<$totFields)
{
$arFields[] = mysql_field_name( $arResult, $i++);
}
}
$content = array();
$i = 0;
if(mysql_num_rows($arResult)>0)
{
while( $row = mysql_fetch_assoc($arResult))
{
foreach($arFields as $field)
{
$content[ $i ][ $field ] = $row[ $field ] ;
$content[ $i ][ $field ] = $content[ $i ][ $field ];
}
$i++;
}
}else{
$content = false;
}
return $content;
}
}
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