我在 php 上制作了一个表单，并在那里添加了一个图像输入选项。<form action="./assets/actions/gallery_post.php" id="upload-form" method="POST"> <input type="text" name="title" placeholder="Image title..." class="form-control" required> <br> <input type="text" name="description" placeholder="Image description..." class="form-control"> <br> <input type="file" name="file", class="form-control" required> <br> <button type="submit" name="picture-submit" class="form-control submit">Upload Photo</button> </form>以下是我上传文件的 php 代码。// Check if the button was pressedif (isset($POST['picture-submit'])) { echo "Entered"; // Get the inputs $newfilename = 'gallery'; $title = $_POST['title']; $description = $_POST['description']; $file = $_FILES['file']; if($file){ echo "FILE"; }else{ echo "No File found"; } console.log($file); // Obtaining some file information $fileName = $file['name']; $fileTmpName = $file['tmp_name']; $fileError = $file['error']; $fileType = $file['type']; // Checking file extensions $fileExt = explode('.', $fileName); $fileActualExt = strtolower(end($fileExt)); echo "$fileActualExt"; // Allowed extensions $allowed = array('jpeg', 'jpg', 'png', 'JPG'); // if extension is allowed if(in_array($fileActualExt, $allowed)){ // check if any error if($fileError === 0){ // Creating a unique file name $fileNew = $newfilename. "." . uniqid('', true) . "." . $fileActualExt; $fileDest = "assets/images/gallery/" . $fileNew; // Function to upload file move_uploaded_file($fileTmpName, $fileDest); // Making a database connection include_once ('dbh.php'); }}在上面的场景中它甚至没有进入 if 条件。当我删除 if 条件时，我得到“找不到文件”。现在有点被难住了，因为我过去让它工作过。我什至尝试过像这样的基本 HTML 查询格式，mysqli_query($conn, $sql) or die(mysqli_error($conn));但这也不起作用。
1 回答
至尊宝的传说
TA贡献1789条经验 获得超10个赞
您的表单标签必须启用enctype="multipart/form-data"。
试试这段代码。
<!DOCTYPE html>
<html>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
Select image to upload:
<input type="file" name="fileToUpload" id="fileToUpload">
<input type="submit" value="Upload Image" name="submit">
</form>
</body>
</html>
<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size
if ($_FILES["fileToUpload"]["size"] > 500000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
}
?>
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