我正在尝试使用客户端上的Javascript和服务器上的PHP将图像上传到数据库。
问题是当iam尝试提交裁剪的图像值时没有传递给php实际上传的输入“文件”值正在传递,但我需要将裁剪区域值传递给PHP。
为了测试目的,如果需要所有js,我可以提供它。
Js:这会裁剪图像
$(function() {
$('.image-editor').cropit({
exportZoom: 1.25,
imageBackground: true,
imageBackgroundBorderWidth: 40,
});
$('.export').click(function() {
var imageData = $('.image-editor').cropit('export');
window.open(imageData);
});
});
HTML:
<form id="uploadForm" class="image-editor">
<input type="file" class="cropit-image-input">
<!-- .cropit-image-preview-container is needed for background image to work -->
<div class="cropit-image-preview-container">
<div class="cropit-image-preview"></div>
</div>
<div class="image-size-label">
Resize image
</div>
<input type="range" class="cropit-image-zoom-input">
<input type="submit" class="export">Export</input >
</form>
Ajax:ajax将数据发送到php
$(document).ready(function (e) {
$("#uploadForm").on('submit', (function (e) {
e.preventDefault();
$.ajax({
url: "upload.php",
type: "POST",
data: new FormData(this),
contentType: false,
cache: false,
processData: false,
success: function (data) {
$("#targetLayer1").html(data);
},
error: function () {}
});
});
});
PHP:
if(count($_FILES) > 0) {
if(is_uploaded_file($_FILES['userImage']['tmp_name'])) {
$mysl = mysqli_connect("localhost", "root", "root","test");
$imgData =addslashes(file_get_contents($_FILES['userImage']['tmp_name']));
$imageProperties = getimageSize($_FILES['userImage']['tmp_name']);
$sql = "UPDATE output_images SET imageType ='{$imageProperties['mime']}',imageData= '{$imgData}' WHERE imageId='16'";
$current_id = mysqli_query($mysl,
$sql) or die("<b>Error:</b> Problem on Image Insert<br/>" . mysqli_error());;
if(isset($current_id)) {
echo "done";
}
}
}
答案 0 :(得分:1)
首先,看看这个:Can I pass image form data to a PHP function for upload?
我认为问题在于:var imageData = $('.image-editor').cropit('export');
。由于这个新图像永远不是表单的一部分,因此无法通过AJAX传递它。
在你的JS / JQuery中,我建议:
var imageData = '';
$(function() {
$('.image-editor').cropit({
exportZoom: 1.25,
imageBackground: true,
imageBackgroundBorderWidth: 40,
});
$('.export').click(function() {
imageData = $('.image-editor').cropit('export');
window.open(imageData);
});
});
$(document).ready(function (e) {
$("#uploadForm").on('submit', (function (e) {
e.preventDefault();
var fd = new FormData(this);
fd.append( imageData, file );
$.ajax({
url: "upload.php",
type: "POST",
data: fd,
contentType: false,
cache: false,
processData: false,
success: function (data) {
$("#targetLayer1").html(data);
},
error: function () {}
});
});
});
修改强>
在您的示例中,您从未为name
定义id
或input
属性,因此PHP无法将$_FILES
全局编入索引。可以尝试$_FILES[0]
。我建议您在form
或发布时将其分配。
您可以调整myFormData.append(name, file, filename);
。所以它会是:
fd.append('crop-image', imageData, 'crop-image.jpg');
然后在PHP中,使用$_FILES['crop-image']
调用它。如果要从表单中传递文件名:
$(document).ready(function (e) {
$("#uploadForm").on('submit', (function (e) {
e.preventDefault();
var fd = new FormData(this);
var origFileName = $("input[type='file']").val();
var startIndex = (origFileName.indexOf('\\') >= 0 ? origFileName.lastIndexOf('\\') : origFileName.lastIndexOf('/'));
var filename = origFileName.substring(startIndex);
if (filename.indexOf('\\') === 0 || filename.indexOf('/') === 0){
filename = filename.substring(1);
}
var cropFileName = "crop-" + filename;
fd.append('crop-image' imageData, cropFileName );
$.ajax({
url: "upload.php",
type: "POST",
data: fd,
contentType: false,
cache: false,
processData: false,
success: function (data) {
$("#targetLayer1").html(data);
},
error: function () {}
});
});