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* $db = new DB('localhost','root','password','database','utf8');
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* 'table_1' => 'id',
* 'table_2' => 'id2'
* );
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public $haltOnError = true;
public $displayError=true;
public $queryID;
public $connected = false;
public $tableFields = array();
public $dbhost;
public $dbuser;
public $dbpwd;
public $dbname;
public $dbcharset;
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