Question

我有一个PHP函数调用的新手问题。文件：

    <?php
        session_start();
        include("../conexionbbdd.php");
        include("../conexionapi.php");

        $id = $_SESSION['id'];   
        $inclass = $_SESSION['inclass'];   

    if($_SESSION['estado'] == 'activo'){

        if($inclass==='1'){       
            checkCost();        
        }
        else{
            sendMessage();        
        }

function checkCost(){
    //DO WHATEVER
}

function sendMessage(){
    //DO WHATEVER
}


}else{

header('location:../login.php');

}
?>

控制台出现错误 （！）致命错误：在第14行的C：\ wamp \ www [removedbyme] \ actions \ msg_newMessage.php中调用未定义的函数checkCost（） < /强>

Answer 1

试试这个：

       session_start();
        include("../conexionbbdd.php");
        include("../conexionapi.php");

function checkCost(){
    //DO WHATEVER
}

function sendMessage(){
    //DO WHATEVER
}


        $id = $_SESSION['id'];   
        $inclass = $_SESSION['inclass'];   

    if($_SESSION['estado'] == 'activo'){

        if($inclass==='1'){       
            checkCost();        
        }
        else{
            sendMessage();        
        }



}else{

header('location:../login.php');

}

Answer 2

从上到下读取PHP代码，因此当您调用checkCost时，php不知道checkCost存在：

<?php
    session_start();
    include("../conexionbbdd.php");
    include("../conexionapi.php");
    function checkCost(){
    //DO WHATEVER
    }

    function sendMessage(){
    //DO WHATEVER
    }
    $id = $_SESSION['id'];   
    $inclass = $_SESSION['inclass'];   

    if($_SESSION['estado'] == 'activo'){

       if($inclass==='1'){       
           checkCost();        
       }
       else{
           sendMessage();        
       }

    }else{

    header('location:../login.php');

   }
?>

PHP - 调用函数时出现致命错误（未定义函数错误）

2 个答案: