Uploadify最小图像宽度和高度 [英] Uploadify Minimum Image Width And Height
问题描述
因此，我正在使用Uplodify插件，允许用户一次上传多张图片.问题是我需要为图像设置最小宽度和高度.假设150x150像素是用户可以上传的最小图像.
So I am using the Uplodify plugin to allow users to upload multiple images at once. The problem is I need to set a minimum width and height for images. Let's say 150x150px is the smallest image users can upload.
如何在Uploadify插件中设置此限制?当用户尝试上传较小的图片时，我也想显示一些错误消息.
How can I set this limitation in the Uploadify plugin? When user tries to upload smaller picture, I would like to display some error message as well.
这是一个名为bu的php文件，用于上传图片:
Here is the PHP file that is called bu the plugin to upload images:
<?php
define('BASE_PATH', substr(dirname(dirname(__FILE__)), 0, -22));
// set the include path
set_include_path(BASE_PATH
. '/../library'
. PATH_SEPARATOR
. BASE_PATH
. '/library'
. PATH_SEPARATOR
. get_include_path());
// autoload classes from the library
function __autoload($class) {
include str_replace('_', '/', $class) . '.php';
}
$configuration = new Zend_Config_Ini(BASE_PATH
. '/application'
. '/configs/application.ini',
'development');
$dbAdapter = Zend_Db::factory($configuration->database);
Zend_Db_Table_Abstract::setDefaultAdapter($dbAdapter);
function _getTable($table)
{
include BASE_PATH
. '/application/modules/default/models/'
. $table
. '.php';
return new $table();
}
$albums = _getTable('Albums');
$media = _getTable('Media');
if (false === empty($_FILES)) {
$tempFile = $_FILES['Filedata']['tmp_name'];
$extension = end(explode('.', $_FILES['Filedata']['name']));
// insert temporary row into the database
$data = array();
$data['type'] = 'photo';
$data['type2'] = 'public';
$data['status'] = 'temporary';
$data['user_id'] = $_REQUEST['user_id'];
$paths = $media->add($data, $extension, $dbAdapter);
// save the photo
move_uploaded_file($tempFile,
BASE_PATH . '/public/' . $paths[0]);
// create a thumbnail
include BASE_PATH . '/library/My/PHPThumbnailer/ThumbLib.inc.php';
$thumb = PhpThumbFactory::create(BASE_PATH . '/public/' . $paths[0]);
$thumb->adaptiveResize(85, 85);
$thumb->save(BASE_PATH . '/public/' . $paths[1]);
// add watermark to the bottom right corner
$pathToFullImage = BASE_PATH . '/public/' . $paths[0];
$size = getimagesize($pathToFullImage);
switch ($extension) {
case 'gif':
$im = imagecreatefromgif($pathToFullImage);
break;
case 'jpg':
$im = imagecreatefromjpeg($pathToFullImage);
break;
case 'png':
$im = imagecreatefrompng($pathToFullImage);
break;
}
if (false !== $im) {
$white = imagecolorallocate($im, 255, 255, 255);
$font = BASE_PATH . '/public/fonts/arial.ttf';
imagefttext($im,
13, // font size
0, // angle
$size[0] - 132, // x axis (top left is [0, 0])
$size[1] - 13, // y axis
$white,
$font,
'HunnyHive.com');
switch ($extension) {
case 'gif':
imagegif($im, $pathToFullImage);
break;
case 'jpg':
imagejpeg($im, $pathToFullImage, 100);
break;
case 'png':
imagepng($im, $pathToFullImage, 0);
break;
}
imagedestroy($im);
}
echo "1";
}
这是javascript:
And here's the javascript:
$(document).ready(function() {
$('#photo').uploadify({
'uploader' : '/flash-uploader/scripts/uploadify.swf',
'script' : '/flash-uploader/scripts/upload-public-photo.php',
'cancelImg' : '/flash-uploader/cancel.png',
'scriptData' : {'user_id' : 'USER_ID'},
'queueID' : 'fileQueue',
'auto' : true,
'multi' : true,
'sizeLimit' : 2097152,
'fileExt' : '*.jpg;*.jpeg;*.gif;*.png',
'wmode' : 'transparent',
'onComplete' : function() {
$.get('/my-account/temporary-public-photos', function(data) {
$('#temporaryPhotos').html(data);
});
}
});
$('#upload_public_photo').hover(function() {
var titles = '{';
$('.title').each(function() {
var title = $(this).val();
if ('Title...' != title) {
var id = $(this).attr('name');
id = id.substr(5);
title = jQuery.trim(title);
if (titles.length > 1) {
titles += ',';
}
titles += '"' + id + '"' + ':"' + title + '"';
}
});
titles += '}';
$('#titles').val(titles);
});
});
现在请记住，我知道如何检查PHP文件中的图像尺寸.但是我不确定如何修改javascript，因此它不会上传尺寸非常小的图片.
Now bear in mind that I know how to check images dimensions in the PHP file. But I'm not sure how to modify the javascript so it won't upload images with very small dimensions.
推荐答案
您将在此行上获得图像的大小:
You get the size of the image on this line:
$size = getimagesize($pathToFullImage);
为什么不在此处添加条件来检查它是否至少是您想要的大小，如果没有，则返回错误.
Why not add a conditional here to check if it is at least the size you want, and if not return an error.
if($size[0] > 150 || $size[1] > 150) {
return $someError;
}
另外，似乎可以为Uploadify设置onError选项: http://www. uploadify.com/documentation/
Also it looks like there is an onError option for Uploadify which you could set: http://www.uploadify.com/documentation/
This thread looks like it could be of some help to you: http://www.uploadify.com/forum/viewtopic.php?f=5&t=14
这篇关于Uploadify最小图像宽度和高度的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
