Question

任何人都知道如何在php中调用goBack()？

它一直告诉我：

致命错误：调用未定义的函数goBack（）

我不知道为什么......

这是我的PHP代码：

<?php
include "config.php";
include "session_user.php";
?>
    <script>
        function goBack(){
            alert();
            window.history.go(-1);
        }

    </script>

    <?php
    if(isset($_GET['d'])):

         $stmt = $mysqli->prepare("DELETE FROM bom_equipment WHERE bom_eqp_id=?");
         $stmt->bind_param('s', $id);

         $id = $_GET['d'];

         if($stmt->execute()):
             goBack();
         else:
              echo "<script>alert('".$stmt->error."')</script>";
         endif;
    endif;
    ?>

有什么建议吗？

Answer 1

如果你想从php调用javascript函数。它有很多方法

将您的代码更改为以下内容，

方法1

<?php
include "config.php";
include "session_user.php";
?>
    <script>
        function goBack(){
            alert();
            window.history.go(-1);
        }

    </script>

    <?php
    if(isset($_GET['d'])):

         $stmt = $mysqli->prepare("DELETE FROM bom_equipment WHERE bom_eqp_id=?");
         $stmt->bind_param('s', $id);

         $id = $_GET['d'];

         if($stmt->execute()):
           echo "<script>goBack();</script>";
         else:
              echo "<script>alert('".$stmt->error."')</script>";
         endif;
    endif;
    ?>

方法2

<?php
include "config.php";
include "session_user.php";

    if(isset($_GET['d'])):

         $stmt = $mysqli->prepare("DELETE FROM bom_equipment WHERE bom_eqp_id=?");
         $stmt->bind_param('s', $id);

         $id = $_GET['d'];

         if($stmt->execute()):
            echo "<script>histort.back()</script>";
         else:
              echo "<script>alert('".$stmt->error."')</script>";
         endif;
    endif;
    ?>

在脚本中调用函数到php

1 个答案: