【发布时间】：2020-07-10 15:30:36
【问题描述】：
我正在使用图像字段更新我的帖子。一切都很好，但是我丢失了图像的路径，儿子，如果我将字段留空，则图像路径为空。
我一直在尝试不同的方法来包含字段图像的旧路径。这些是具有旧路径和新路径的行。
<input type="file" name="image" value="<?php echo $row['image']; ?>">
<input type="hidden" name="old_image" value="<?php echo $row['image']; ?>" >
我也尝试了<input type="file" name="image" value="<?php echo $image; ?>">，但它不起作用。
有什么建议吗？
提前致谢！ :)
这是我的代码：
<?php
require 'database.php';
$db = mysqli_connect("", "", "", "");
$id=$_GET["id"];
$title='';
$image='';
$image_text='';
$category='';
$result = mysqli_query($db, "SELECT * FROM `images` WHERE `id` = $id ");
while ($row = mysqli_fetch_array($result))
{
$title=$row['title'];
$image=$row['image'];
$papayos = $row['papayos'];
$cantidad = $row['cantidad'];
$image_text=nl2br($row['image_text']);
$category=$row['category'];
}
?>
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Modificar. Lapapaya.org Educación y colaboración </title>
<meta name="keywords" content="colaboracion, economía del bien común, emprendimiento"/>
<meta name="description" content="Plataforma para desarrollo de proyectos productivos con bonos de intercambio"/>
<link rel="stylesheet" href="css/style.css">
<link rel="shortcut icon" type="image/png" href="images/favicon.png">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bulma@0.8.0/css/bulma.min.css">
<script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
</head>
<body>
<section class="section has-background-white">
<div class="container">
<div class="columns is-centered">
<img class="logo-intro" src="images/logo.png" alt="Logo">
<br>
</div>
</div>
</section>
<form method="POST" action='' enctype="multipart/form-data">
<div class="container">
<h1>Título del artículo</h1>
<br>
<div class="field">
<div class="control">
<input class="input is-warning is-fullwidth" type="text" name="title" value="<?php echo $title; ?>" placeholder="Título">
</div>
<br>
<br>
<div>
<div class="notification"> <h1>Imagen</h1>
<input type="hidden" name="size" value="1000000">
<div class="field">
<div class="control">
<input type="file" name="image" value="<?php echo $row['image']; ?>">
<input type="hidden" name="old_image" value="<?php echo $row['image']; ?>" >
</div>
</div>
<div>
<h1>Descripción</h1>
<textarea class="textarea" name="image_text" rows="8" cols="80"><?php echo $image_text; ?></textarea>
<br>
<h1>Categoría</h1>
<div class=" select is-warning is-fullwidth">
<select type="text" class="" name="category" value="<?php echo $category; ?>">
<option value="1 ">Productos agrícolas</option>
<option value="2 ">Servicio</option>
<option value="3 ">Artesanía</option>
<option value="4 ">Arte</option>
<option value="5">Diseño Industrial</option>
<option value="6 ">Ciudad</option>
<option value="7 ">Economía</option>
<option value="8 ">Emprendimiento</option>
<option value="9 ">Programación</option>
<option value="10 ">Reflexión</option>
<option value="11">Río</option>
<option value="12 ">Seguridad alimentaria</option>
<option value="13 ">Vivienda</option>
</select>
</div>
<h1>Precio</h1>
<br>
<div class="field">
<div class="control">
<input class="input is-warning" type="number" name="papayos" value="<?php echo $papayos; ?>" placeholder="Papayos">
</div>
<br>
<h1>Cantidad</h1>
<br>
<div class="field">
<div class="control">
<input class="input is-warning" type="number" name="cantidad" value="<?php echo $cantidad; ?>" placeholder="Cantidad">
</div>
<br>
<br>
<div>
<button class="button is-outlined is-medium is-fullwidth" type="update" name="update">Modificar</button>
</div>
</div>
</form>
</body>
</html>
<?php
$server = '';
$username = '';
$password = '';
$database = '';
if (isset($_POST['update'])) {
$title=$_POST['title'];
$image_text=nl2br($_POST['image_text']);
$category=$_POST['category'];
$papayos =$_POST['papayos'];
$cantidad =$_POST['cantidad'];
$total = $papayos * $cantidad;
$old_image = $_POST['old_image'];
if(isset($_FILES['image']['name']) && ($_FILES['image']['name']!="")) {
$size=$_FILES['image']['size'];
$temp=$_FILES['image']['tmp_name'];
$type=$_FILES['image']['type'];
$image_name=$_FILES['image']['name'];
unlink("images/$old_image");
move_uploaded_file($temp, "images/$image_name");
}else {
$image_name=$old_image;
}
$update=mysqli_query($db, "UPDATE images SET title = '$title', image = '$image_name', image_text = '$image_text', category = '$category', papayos = '$papayos', cantidad = '$cantidad', total = '$total' WHERE id = $id");
if ($update) {
echo "<script>alert('Datos actualizados exitosamente')</script>";
echo "<script>window.open('index.php', '_self')</script>";
}
else {
echo "<script>alert('Inserción fallida')</script>";
}
} ?>
【问题讨论】：
-
您的意思是您的
old_image字段吗？ -
¿是的，你能看到错误吗？
-
我在您的查询中没有看到它
$update=mysqli_query($db, "UPDATE images SET title = '$title', image = '$image_name', image_text = '$image_text', category = '$category', papayos = '$papayos', cantidad = '$cantidad', total = '$total' WHERE id = $id"); -
但问题是，当我向页面收费时，旧链接没有显示在 html 中，所以当我必须看到旧链接时，我没有看到任何文件。