在iFrame中上传文件

Question

我正在尝试将文件上传到iFrame中，到目前为止，一切似乎都可以正常工作，但是由于它似乎没有收到，所以我无法在PHP端处理该图像...

它似乎确实已上传，因为我的进度条确实可以工作并显示进度并完成。 responseText说： No image selected?

这是我的aJax：

function submitFile() {
    //The file location
    var theFile = document.getElementById("image").files[0];
    var xhr = new XMLHttpRequest();
    //Disable submit button whilst upload is active
    doc("submit").disabled = true;

    //Completed
    xhr.onload = function(e) {
        if (this.status == 200) {
            document.getElementById("imageUpload").innerHTML = xhr.responseText;
            doc("submit").disabled = false; //Unlock submit button
        }
    };

    //Progress
    xhr.upload.onprogress = function(e) {
        if (e.lengthComputable) {
            var currentPercentage = Math.round(e.loaded / e.total * 100);
            document.getElementById("imageUpload").innerHTML = "UPLOAD IMAGE " + currentPercentage + "%";
            document.getElementById("imageUpload").style.backgroundSize = currentPercentage + "% 100%";
        }
    };

    //Send data
    xhr.open("POST", "php/uploadImage.php", true);
    xhr.send(theFile);
}

这是我从中提交图像的表单，但是当我选择文件时它会上载，但是当我单击“提交”时就不会see the onchange function 。

<form action="php/submitMessage.php" onsubmit="validation(this)" method="post" id="submitMessage" enctype="multipart/form-data">
    <div class="left half">
        <input class="text" type="text" name="name" placeholder="First and Second Name" 
        rules="[A-Za-z]*\s[A-Za-z]*" />
        <input class="text" type="text" name="email" placeholder="Email Address" 
        rules="^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$" />
        <textarea name="message" placeholder="Enter your message here..." rows="5"></textarea>
    </div>
    <div class="right half">
        <input class="text" type="text" name="reg" placeholder="Car Registration"/>
        <input type="file" onchange="submitFile();" name="image" id="image" style="display:none;" />
        <input type="hidden" name="image_location" id="image_location"/>
        <label for="image" id="imageUpload" class="uploadBtn">Upload Image</label>
        <p>Message will be regarded as a quote request if you provide an image.</p>
    </div>
    <input type="submit" id="submit" style="background-color:#fff;color:#000;" value="Submit Message/Quote" />
</form>

这是我的PHP，我想接收文件，调整文件大小，然后将会话变量设置为其位置，该位置将在提交表单的其余部分时使用，因为文件位置需要添加到数据库行中。

<?php
session_start();

//Image was selected
if($_FILES['image']['tmp_name']) {
    //any errors?
    if(!$_FILES['image']['error']) {
        //validate the file and setup future filename
        $new_file = date("Ymdhisa");

        //Can't be larger than 5MB
        if ($_FILES['image']['size'] > 5000000) {
            //Resize the file
            $width = 500;

            //Keep aspect ratio
            $size = getimagesize($_FILES['image']['tmp_name']);
            $height = round($width*$size[1]/$size[0]);

            //Create object
            if ($size[2] == 1) {
                $images_orig = imagecreatefromgif($_FILES['image']['tmp_name']);
            } else if ($size[2] == 2) {
                $images_orig = imagecreatefromjpeg($_FILES['image']['tmp_name']);
            } else if ($size[2] == 3) {
                $images_orig = imagecreatefrompng($_FILES['image']['tmp_name']);
            }

            //Get image size to create object
            $photoX = imagesx($images_orig);
            $photoY = imagesy($images_orig);

            //Create resized object
            $images_fin = imagecreatetruecolor($width, $height);
            imagecopyresampled($images_fin,$images_orig,0,0,0,0,$width+1,$height+1,$photoX,$photoY); //Resize the image
            imagejpeg($images_fin,"images/".$new_images); //Save image to file

            //Remove image from memory
            imagedestroy($images_orig);
            imagedestroy($images_fin);

            //Set session key for file location
            $_SESSION['tmp_image'] = "uploads/".$new_file; //Should be unset when message has been sent
            $message = "File successfully uploaded!";
            echo $message;
        }
    }
    else 
    {
        $message = "There was an error: ".$_FILES['image']['error'];
        echo $message;
    }
} else {
    echo "No image selected?";
}
?>

Answer 1

这是我的代码，我的代码也很好，希望也能为您工作

  function submitVisualMedia() { $(document).ready(function (e) { var fd = new FormData($("#fileinfo")[0]); $.ajax({ url:, //YOUR DESTINATION PAGE type: "POST", data: fd, enctype: 'multipart/form-data', processData: false, // tell jQuery not to process the data contentType: false, // tell jQuery not to set contentType success: function () { //some code if you want } }); }); return false; } 

  <form method="post" id="fileinfo" onsubmit='return submitVisualMedia()' > <input class="form-control" type="text" id="title" > <input class="form-control" type="file" name="visualMedia" id="visualMedia" accept="image/*"> <button class="btn btn-success" type="submit">Upload</button> </form> 

和PHP方面

public function uploadVisualMedia() {

    ini_set('upload_max_filesize', '25M');
    ini_set('post_max_size', '25M');
    ini_set('max_input_time', 300);
    ini_set('max_execution_time', 300);

    $fname = date('l-j-m-Y').'-'.rand(1,1000000);
    $size = $_FILES['visualMedia']['size'];
    $ftype = $_FILES['visualMedia']['type'];
    $temp = $_FILES['visualMedia']['tmp_name'];
    $type = array();
    $type = explode("/", $ftype);
    $filename = "galleries/" . $type[0] . "_gallery/" . $fname . "." . $type[1];
    $index = 0;
    while (file_exists($filename)) {
        $filename = "galleries/" . $type[0] . "_gallery/" . $fname . "($index)" . "." . $type[1];
        $index++;
    }
    move_uploaded_file($temp, $filename);

}

您在此代码中所做的更改很少，应该可以正常工作。 这样您就可以上传视频和音频了。 将$ filename更改为所需的某些文件夹名称。