編輯表單不起作用 php
[英]Edit form doesn't work php
問題描述
實際上試圖解決問題 3 天，現在不知道該怎么做。 編輯表單不起作用。 我沒有錯誤消息。
沒有保存數據文件，因為我只從數據庫輸出。 並編輯.php
<?php
include_once 'config.php';
if (isset($_POST['submit'])){
if (empty($_POST['username'])){
$errors = "Впишите ваше имя";
}elseif (empty($_POST['email'])){
$errors = "Впишите ваш email";
}elseif (empty($_POST['task'])){
$errors = "Впишите задание";
}elseif (empty($_FILES['image']['name'])){
$errors = "Вставьте картинку";
}else{
$id = $_GET['edit'];
$username = mysqli_real_escape_string($db,
trim($_POST['username']));
$email = mysqli_real_escape_string($db,
trim($_POST['email']));
$task = mysqli_real_escape_string($db,
trim($_POST['task']));
$image = mysqli_real_escape_string($db,
$_FILES['image']['name']);
$target = "uploads/".basename($_FILES['image']['name']);
$sql = "UPDATE `tasks` SET `username`='$username', `email`='$email',
`task`='$task', `image`='$image' WHERE `id`='$id'";
mysqli_query($db, $sql);
move_uploaded_file($_FILES['image']['tmp_name'], $target);
$home_url = 'http://' . $_SERVER['HTTP_HOST'];
header('Location:' . $home_url);
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>задачник</title>
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
integrity="sha384-
BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u"
crossorigin="anonymous">
<link href="/css/style.css" rel="stylesheet">
</head>
<body>
<header>
<h3>Внесение изменений в запись</h3>
<a href="index.php" class="btn btn-default">На страницу
администратора</a>
</header>
<br>
<form method="POST" action="<?=$_SERVER['PHP_SELF'];?>" class="input_form"
enctype="multipart/form-data">
<input type="text" name="username" placeholder="Введите Имя"
class="username_input">
<input type="email" name="email" placeholder="Введите email"
class="email_input">
<br>
<br>
<input type="hidden" name="MAX_FILE_SIZE" value="300000" />
<input type="text" name="task" placeholder="Введите задание"
class="task_input">
<p>Сменить изображение</p>
<input type="file" name="image" multiple accept="image/png, image/jpeg,
image/gif">
<br>
<button type="submit" name="submit" id="add_btn">Изменить
запись</button>
</form>
我試圖var_dump($_GET('edit')); 我得到了我想要編輯的頁面的正確 id，但在提交按鈕后，我被重定向到 index.php，db 中沒有任何變化。 var_dump($_POST['submit']); 給出字符串（0），但是這個項目的另一個文件夾中的 save_task 表單工作正常，提交后也給出字符串（0）。
3 個解決方案
解決方案1
1 2018-03-05 09:02:25
edit.php文件中的更新查詢不正確。
$sql = "UPDATE `tasks` SET `username`='$username', `email`='$email',`task`='$task', WHERE `id`='$id'";
更新查詢中 where 子句之前存在附加分號。將其刪除。
解決方案2
0 2018-03-05 09:32:09
我認為錯誤在於$image值。 自己調試並找到錯誤 -
<?php
include_once 'config.php';
if (isset($_POST['submit'])){
echo 'form submitted? - okay <br/>';
if (empty($_POST['username'])){
$errors = "Впишите ваше имя";
}elseif (empty($_POST['email'])){
$errors = "Впишите ваш email";
}elseif (empty($_POST['task'])){
$errors = "Впишите задание";
}elseif (empty($_FILES['image']['name'])){
$errors = "Вставьте картинку";
}else{
echo 'form validated? - okay <br/>';
$id = $_GET['edit'];
$username = mysqli_real_escape_string($db,
trim($_POST['username']));
$email = mysqli_real_escape_string($db,
trim($_POST['email']));
$task = mysqli_real_escape_string($db,
trim($_POST['task']));
$image = mysqli_real_escape_string($db,
$_FILES['image']['name']);
//most probably error is here --- $_FILES['image']['name'] should gives you array!!! as you have used "multiple" in input
var_dump($_FILES, $_FILES['image'], $_FILES['image']['name']); //die('debug--');
$target = "uploads/".basename($_FILES['image']['name']);
$sql = "UPDATE `tasks` SET `username`='$username', `email`='$email',
`task`='$task', `image`='$image' WHERE `id`='$id'";
echo $sql.'<br/>' ; //copy this sql and run in phpmyadmin sql-console and check if there is any error
die('checking sql statement');
mysqli_query($db, $sql);
move_uploaded_file($_FILES['image']['tmp_name'], $target);
$home_url = 'http://' . $_SERVER['HTTP_HOST'];
//header('Location:' . $home_url);
}
}
?>
解決方案3
0 2018-03-07 06:02:34
檢查edit.php文件中表單標簽中的“action”屬性。 action="<?=$_SERVER['PHP_SELF'];?>"它應該是action="/<?PHP echo basename($_SERVER['REQUEST_URI']); ?>" 。 PHP_SELF 不附加獲取參數。
編輯表單在 joomla 中不起作用
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