$show Whether to show or hide errors
	 * @return bool Old value for showing errors.
	 */
	function show_errors( $show = true ) {
		$errors = $this->show_errors;
		$this->show_errors = $show;
		return $errors;
	}

	/**
	 * Disables showing of database errors.
	 *
	 * @since 0.71
	 *
	 * @return bool Whether showing of errors was active or not
	 */
	function hide_errors() {
		$show = $this->show_errors;
		$this->show_errors = false;
		return $show;
	}

	/**
	 * Whether to suppress database errors.
	 *
	 * @param unknown_type $suppress
	 * @return unknown
	 */
	function suppress_errors( $suppress = true ) {
		$errors = $this->suppress_errors;
		$this->suppress_errors = $suppress;
		return $errors;
	}

	/**
	 * Kill cached query results.
	 *
	 * @since 0.71
	 */
	function flush() {
		$this->last_result = array();
		$this->col_info = null;
		$this->last_query = null;
	}

	/**
	 * Perform a MySQL database query, using current database connection.
	 *
	 * More information can be found on the codex page.
	 *
	 * @since 0.71
	 *
	 * @param string $query
	 * @return unknown
	 */
	function query($query) {
		if ( ! $this->ready )
			return false;

		// filter the query, if filters are available
		// NOTE: some queries are made before the plugins have been loaded, and thus cannot be filtered with this method
		if ( function_exists('apply_filters') )
			$query = apply_filters('query', $query);

		// initialise return
		$return_val = 0;
		$this->flush();

		// Log how the function was called
		$this->func_call = "\$db->query(\"$query\")";

		// Keep track of the last query for debug..
		$this->last_query = $query;

		// Perform the query via std mysql_query function..
		if ( defined('SAVEQUERIES') && SAVEQUERIES )
			$this->timer_start();

		$this->result = @mysql_query($query, $this->dbh);
		++$this->num_queries;

		if ( defined('SAVEQUERIES') && SAVEQUERIES )
			$this->queries[] = array( $query, $this->timer_stop(), $this->get_caller() );

		// If there is an error then take note of it..
		if ( $this->last_error = mysql_error($this->dbh) ) {
			$this->print_error();
			return false;
		}

		if ( preg_match("/^\\s*(insert|delete|update|replace) /i",$query) ) {
			$this->rows_affected = mysql_affected_rows($this->dbh);
			// Take note of the insert_id
			if ( preg_match("/^\\s*(insert|replace) /i",$query) ) {
				$this->insert_id = mysql_insert_id($this->dbh);
			}
			// Return number of rows affected
			$return_val = $this->rows_affected;
		} else {
			$i = 0;
			while ($i < @mysql_num_fields($this->result)) {
				$this->col_info[$i] = @mysql_fetch_field($this->result);
				$i++;
			}
			$num_rows = 0;
			while ( $row = @mysql_fetch_object($this->result) ) {
				$this->last_result[$num_rows] = $row;
				$num_rows++;
			}

			@mysql_free_result($this->result);

			// Log number of rows the query returned
			$this->num_rows = $num_rows;

			// Return number of rows selected
			$return_val = $this->num_rows;
		}

		return $return_val;
	}

	/**
	 * Insert an array of data into a table.
	 *
	 * @since 2.5.0
	 *
	 * @param string $table WARNING: not sanitized!
	 * @param array $data Should not already be SQL-escaped
	 * @return mixed Results of $this->query()
	 */
	function insert($table, $data) {
		$data = add_magic_quotes($data);
		$fields = array_keys($data);
		return $this->query("INSERT INTO $table (`" . implode('`,`',$fields) . "`) VALUES ('".implode("','",$data)."')");
	}

	/**
	 * Update a row in the table with an array of data.
	 *
	 * @since 2.5.0
	 *
	 * @param string $table WARNING: not sanitized!
	 * @param array $data Should not already be SQL-escaped
	 * @param array $where A named array of WHERE column => value relationships.  Multiple member pairs will be joined with ANDs.  WARNING: the column names are not currently sanitized!
	 * @return mixed Results of $this->query()
	 */
	function update($table, $data, $where){
		$data = add_magic_quotes($data);
		$bits = $wheres = array();
		foreach ( array_keys($data) as $k )
			$bits[] = "`$k` = '$data[$k]'";

		if ( is_array( $where ) )
			foreach ( $where as $c => $v )
				$wheres[] = "$c = '" . $this->escape( $v ) . "'";
		else
			return false;
			
		return $this->query( "UPDATE $table SET " . implode( ', ', $bits ) . ' WHERE ' . implode( ' AND ', $wheres ) );
	}

	/**
	 * Retrieve one variable from the database.
	 *
	 * This combines the functionality of wpdb::get_row() and wpdb::get_col(),
	 * so both the column and row can be picked.
	 *
	 * It is possible to use this function without executing more queries. If
	 * you already made a query, you can set the $query to 'null' value and just
	 * retrieve either the column and row of the last query result.
	 *
	 * @since 0.71
	 *
	 * @param string $query Can be null as well, for caching
	 * @param int $x Column num to return
	 * @param int $y Row num to return
	 * @return mixed Database query results
	 */
	function get_var($query=null, $x = 0, $y = 0) {
		$this->func_call = "\$db->get_var(\"$query\",$x,$y)";
		if ( $query )
			$this->query($query);

		// Extract var out of cached results based x,y vals
		if ( !empty( $this->last_result[$y] ) ) {
			$values = array_values(get_object_vars($this->last_result[$y]));
		}

		// If there is a value return it else return null
		return (isset($values[$x]) && $values[$x]!=='') ? $values[$x] : null;
	}

	/**
	 * Retrieve one row from the database.
	 *
	 * @since 0.71
	 *
	 * @param string $query SQL query
	 * @param string $output ARRAY_A | ARRAY_N | OBJECT
	 * @param int $y Row num to return
	 * @return mixed Database query results
	 */
	function get_row($query = null, $output = OBJECT, $y = 0) {
		$this->func_call = "\$db->get_row(\"$query\",$output,$y)";
		if ( $query )
			$this->query($query);
		else
			return null;

		if ( !isset($this->last_result[$y]) )
			return null;

		if ( $output == OBJECT ) {
			return $this->last_result[$y] ? $this->last_result[$y] : null;
		} elseif ( $output == ARRAY_A ) {
			return $this->last_result[$y] ? get_object_vars($this->last_result[$y]) : null;
		} elseif ( $output == ARRAY_N ) {
			return $this->last_result[$y] ? array_values(get_object_vars($this->last_result[$y])) : null;
		} else {
			$this->print_error(/*WP_I18N_DB_GETROW_ERROR*/' $db->get_row(string query, output type, int offset) -- Le type de sortie doit être: OBJECT, ARRAY_A, ARRAY_N'/*/WP_I18N_DB_GETROW_ERROR*/);
		}
	}

	/**
	 * Retrieve one column from the database.
	 *
	 * @since 0.71
	 *
	 * @param string $query Can be null as well, for caching
	 * @param int $x Col num to return. Starts from 0.
	 * @return array Column results
	 */
	function get_col($query = null , $x = 0) {
		if ( $query )
			$this->query($query);

		$new_array = array();
		// Extract the column values
		for ( $i=0; $i < count($this->last_result); $i++ ) {
			$new_array[$i] = $this->get_var(null, $x, $i);
		}
		return $new_array;
	}

	/**
	 * Retrieve an entire result set from the database.
	 *
	 * @since 0.71
	 *
	 * @param string|null $query Can also be null to pull from the cache
	 * @param string $output ARRAY_A | ARRAY_N | OBJECT_K | OBJECT
	 * @return mixed Database query results
	 */
	function get_results($query = null, $output = OBJECT) {
		$this->func_call = "\$db->get_results(\"$query\", $output)";

		if ( $query )
			$this->query($query);
		else
			return null;

		if ( $output == OBJECT ) {
			// Return an integer-keyed array of row objects
			return $this->last_result;
		} elseif ( $output == OBJECT_K ) {
			// Return an array of row objects with keys from column 1
			// (Duplicates are discarded)
			foreach ( $this->last_result as $row ) {
				$key = array_shift( get_object_vars( $row ) );
				if ( !isset( $new_array[ $key ] ) )
					$new_array[ $key ] = $row;
			}
			return $new_array;
		} elseif ( $output == ARRAY_A || $output == ARRAY_N ) {
			// Return an integer-keyed array of...
			if ( $this->last_result ) {
				$i = 0;
				foreach( $this->last_result as $row ) {
					if ( $output == ARRAY_N ) {
						// ...integer-keyed row arrays
						$new_array[$i] = array_values( get_object_vars( $row ) );
					} else {
						// ...column name-keyed row arrays
						$new_array[$i] = get_object_vars( $row );
					}
					++$i;
				}
				return $new_array;
			}
		}
	}

	/**
	 * Retrieve column metadata from the last query.
	 *
	 * @since 0.71
	 *
	 * @param string $info_type one of name, table, def, max_length, not_null, primary_key, multiple_key, unique_key, numeric, blob, type, unsigned, zerofill
	 * @param int $col_offset 0: col name. 1: which table the col's in. 2: col's max length. 3: if the col is numeric. 4: col's type
	 * @return mixed Column Results
	 */
	function get_col_info($info_type = 'name', $col_offset = -1) {
		if ( $this->col_info ) {
			if ( $col_offset == -1 ) {
				$i = 0;
				foreach($this->col_info as $col ) {
					$new_array[$i] = $col->{$info_type};
					$i++;
				}
				return $new_array;
			} else {
				return $this->col_info[$col_offset]->{$info_type};
			}
		}
	}

	/**
	 * Starts the timer, for debugging purposes.
	 *
	 * @since 1.5.0
	 *
	 * @return bool Always returns true
	 */
	function timer_start() {
		$mtime = microtime();
		$mtime = explode(' ', $mtime);
		$this->time_start = $mtime[1] + $mtime[0];
		return true;
	}

	/**
	 * Stops the debugging timer.
	 *
	 * @since 1.5.0
	 *
	 * @return int Total time spent on the query, in milliseconds
	 */
	function timer_stop() {
		$mtime = microtime();
		$mtime = explode(' ', $mtime);
		$time_end = $mtime[1] + $mtime[0];
		$time_total = $time_end - $this->time_start;
		return $time_total;
	}

	/**
	 * Wraps fatal errors in a nice header and footer and dies.
	 *
	 * @since 1.5.0
	 *
	 * @param string $message
	 * @return unknown
	 */
	function bail($message) {
		if ( !$this->show_errors ) {
			if ( class_exists('WP_Error') )
				$this->error = new WP_Error('500', $message);
			else
				$this->error = $message;
			return false;
		}
		wp_die($message);
	}

	/**
	 * Whether or not MySQL database is minimal required version.
	 *
	 * @since 2.5.0
	 * @uses $wp_version
	 *
	 * @return WP_Error
	 */
	function check_database_version()
	{
		global $wp_version;
		// Make sure the server has MySQL 4.0
		$mysql_version = preg_replace('|[^0-9\.]|', '', @mysql_get_server_info($this->dbh));
		if ( version_compare($mysql_version, '4.0.0', '<') )
			return new WP_Error('database_version',sprintf(__('<strong>ERROR</strong>: WordPress %s requires MySQL 4.0.0 or higher'), $wp_version));
	}

	/**
	 * Whether of not the database version supports collation.
	 *
	 * Called when WordPress is generating the table scheme.
	 *
	 * @since 2.5.0
	 *
	 * @return bool True if collation is supported, false if version does not
	 */
	function supports_collation()
	{
		return ( version_compare(mysql_get_server_info($this->dbh), '4.1.0', '>=') );
	}

	/**
	 * Retrieve the name of the function that called wpdb.
	 *
	 * Requires PHP 4.3 and searches up the list of functions until it reaches
	 * the one that would most logically had called this method.
	 *
	 * @since 2.5.0
	 *
	 * @return string The name of the calling function
	 */
	function get_caller() {
		// requires PHP 4.3+
		if ( !is_callable('debug_backtrace') )
			return '';

		$bt = debug_backtrace();
		$caller = '';

		foreach ( $bt as $trace ) {
			if ( @$trace['class'] == __CLASS__ )
				continue;
			elseif ( strtolower(@$trace['function']) == 'call_user_func_array' )
				continue;
			elseif ( strtolower(@$trace['function']) == 'apply_filters' )
				continue;
			elseif ( strtolower(@$trace['function']) == 'do_action' )
				continue;

			$caller = $trace['function'];
			break;
		}
		return $caller;
	}

}

if ( ! isset($wpdb) ) {
	/**
	 * WordPress Database Object, if it isn't set already in wp-content/wpdb.php
	 * @global object $wpdb Creates a new wpdb object based on wp-config.php Constants for the database
	 * @since 0.71
	 */
	$wpdb = new wpdb(DB_USER, DB_PASSWORD, DB_NAME, DB_HOST);
}
?>
<br />
<b>Fatal error</b>:  Call to undefined method wpdb::set_prefix() in <b>/home/gaetanb/public_html/entraks.com/blog/wp-settings.php</b> on line <b>216</b><br />