当我尝试使用private function sqlConnection(){
我有这段代码:
<?php
require "transferDao/daoTransferProyectos.php";
class daoProyectos{
private function sqlConnection(){
try {
$servername = "localhost";
$username = "root";
$password = "123asd";
$conn = new PDO("mysql:host=$servername;dbname=bd_actividades", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
catch(PDOException $e)
{
echo "Connection failed: " . $e->getMessage();
}
}
public function resultSelect(){
$aObjects=array();
$db = sqlConnection();
$stmt = $db->prepare("SELECT pro_id, pro_nombre FROM act_proyecto");
$stmt->execute();
$stmt->setFetchMode(PDO::FETCH_ASSOC);
$result = $stmt->fetchAll();
foreach ($result as $row) {
$aTransfer = new daoTransferProyectos();
$aTransfer->setId($row['pro_id']);
$aTransfer->setNombreProyecto($row['pro_nombre']);
$aObjects[]=$aTransfer;
}
return $aObjects;
}
}
?>
我有这个错误:
[Mon Jun 01 21:56:00.569136 2015] [:error] [pid 7015] [client 10.0.2.2:61625] PHP致命错误:在/ var / www / html / PROJECTS中调用未定义的函数sqlConnection()第28行的/dailytasks/dao/daoProyectos.php,引用者:http://localhost:8080/formulario_web/formulario/formulario_lazos.html
如何解决此错误?
修改
如果我使用:
$db = $this->sqlConnection();
然后我收到一个新错误:
[Mon Jun 01 22:11:00.530604 2015] [:error] [pid 7015] [client 10.0.2.2:61957] PHP致命错误:在/ var中的非对象上调用成员函数prepare()第29行/www/html/PROJECTS/dailytasks/dao/daoProyectos.php,引用者:http://localhost:8080/formulario_web/formulario/formulario_lazos.html
答案 0 :(得分:4)
此:
$db = sqlConnection();
应该是:
$db = $this->sqlConnection();
//^^^^^^^ See here
换句话说,您试图调用一个不存在的全局函数,而不是您的对象方法。 e.g。
function foo() {
echo 'global function foo';
}
class bar() {
function foo() {
echo 'method foo';
}
function bar() {
foo(); // prints: global function foo
$this->foo(); // prints: method foo
}
}
和
答案 1 :(得分:0)
添加:
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
return $conn; <-- add this line