Update database.php

system/database.php

@@ -1,5 +1,9 @@
 <?php
-$conn = new PDO(
+if(!function_exists("get_db_connect")) {
+	function get_db_connect() {
+		global $config;
+
+		$conn = new PDO(
 			sprintf(
 				"mysql:host=%s;dbname=%s;charset=utf8",
 				$config['db_host'],
@@ -8,21 +12,36 @@ $conn = new PDO(
 			$config['db_username'],
 			$config['db_password'],
 			array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8")
-);
+		);
-$conn->query("SET NAMES 'utf8'");
+		$conn->query("SET NAMES 'utf8'");
 		
-if(!function_exists("sql_query")) {
+		return $conn;
-	function sql_query($sql, $bind=array()) {
-		return get_db_stmt($sql, $bind);
 	}
 }
 
-function get_dbc_object() {
+if(!function_exists("exec_stmt_query")) {
-	global $dbc;
+	function exec_stmt_query($sql, $bind=array()) {
-	return $dbc;
+		$stmt = get_db_stmt($sql, $bind);
+		$stmt->execute();
+
+		return $stmt;
+	}
 }
 
-function get_db_stmt($sql, $bind=array()) {
+if(!function_exists("get_dbc_object")) {
+	function get_dbc_object($renew=false) {
+		global $dbc;
+
+		if($renew) {
+			$dbc = get_db_connect();
+		}
+
+		return $dbc;
+	}
+}
+
+if(!function_exists("get_db_stmt")) {
+	function get_db_stmt($sql, $bind=array()) {
 		$stmt = get_dbc_object()->prepare($sql);
 		if(count($bind) > 0) {
 			foreach($bind as $k=>$v) {
@@ -30,13 +49,17 @@ function get_db_stmt($sql, $bind=array()) {
 			}
 		}
 		return $stmt;
+	}
 }
 
-function get_db_last_id() {
+if(!function_exists("get_db_last_id")) {
+	function get_db_last_id() {
 		return get_dbc_object()->lastInsertId();
+	}
 }
 
-function exec_db_query($sql, $bind=array(), $options=array()) {
+if(!function_exists("exec_db_query")) {
+	function exec_db_query($sql, $bind=array(), $options=array()) {
 		$dbc = get_dbc_object();
 
 		$flag = false;
@@ -70,9 +93,11 @@ function exec_db_query($sql, $bind=array(), $options=array()) {
 		}
 
 		return $flag;
+	}
 }
 
-function exec_db_fetch_all($sql, $bind=array()) {
+if(!function_exists("exec_db_fetch_all")) {
+	function exec_db_fetch_all($sql, $bind=array()) {
 		$rows = array();
 		$stmt = get_db_stmt($sql, $bind);
 		
@@ -81,6 +106,7 @@ function exec_db_fetch_all($sql, $bind=array()) {
 		}
 		
 		return $rows;
+	}
 }
 
 // set global db connection variable