如何使函数从数据库中删除数据

Question

任何人都可以告诉我如何在 PHP 中实现此查询的功能，这就是为什么只要我需要它，我就调用一个函数来删除记录。我是编码新手。请建议最简单的代码来为此编写函数。

<?php
if (isset($_GET['delete']))
{
    $query= "DELETE FROM student WHERE id='".$_GET['delete']."'";
    global $db;

   $row = $db->exec($query);
}

$query= "SELECT * FROM student";

global $db;
$statement = $db->prepare($query);
$statement->execute();
$result = $statement->fetchAll();
$result = $result;
?>

Answer 1

试试这个：

if (isset($_GET['delete']))
{
    deleteStudent($_GET['delete']);
}

$query= "SELECT * FROM student";

global $db;
$statement = $db->prepare($query);
$statement->execute();
$result = $statement->fetchAll();
$result = $result;

function deleteStudent($id) {
    global $db;
    $query= "DELETE FROM student WHERE id='".$id."'";
    $row = $db->exec($query);
    return $row; // expects it return the succes/failure flags properly.
} ?>

如何使函数从数据库中删除数据

how to make function to delete data from db

php

function

sql-delete