我有一个脚本可以在不使用 jquery.form.js 刷新页面的情况下上传图片
下面是它启动处理文件的 PHP 文件,完成后 PHP 创建一个标签来显示图像。
我现在需要一种方法让 JQUERY 知道 PHP 文件处理已完成。有没有什么好的方法可以连接这两者?
我想我可以在页面上写一些隐藏的东西并让 JQUERY 查找它,但我不确定这是否是 B 级解决方案。
有任何想法吗?如果需要,我可以更好地解释。谢谢
<?php
$type = $_POST['mimetype'];
$xhr = $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
foreach($_FILES as $file) {
$filename = $file['name'];
$filesize = $file['size'];
$filetmp = $file['tmp_name'];
}
// Script Variables
$errors=0;
$notAllowedFileType=0;
$exceededMaxFileSize=0;
$maxsize='10485760'; // 10MB Maximum Upload
$folder = 'images/';
$configWidth = 500;
$newFileName = 'success_story'.time().'.jpg';
// Process if No Errors
if(!$errors) {
// Variables
$uploadedFile = $filetmp;
$filename = basename( $filename);
$extension = strtolower(getExtension($filename));
// Convert the Specific Type of File into an Image
if($extension=='jpg' || $extension=='jpeg' ) {
$uploadedfile = $fullfilepath;
$src = imagecreatefromjpeg($uploadedFile);
}elseif($extension=='png') {
$uploadedfile = $fullfilepath;
$src = imagecreatefrompng($uploadedFile);
}else{
$uploadedfile = $fullfilepath;
$src = imagecreatefromgif($uploadedFile);
}
// Configure Width & Height
list($origWidth, $origHeight) = getimagesize($uploadedFile);
$configHeight = ($origHeight/$origWidth)* $configWidth;
// Create Empty File
$tmp = imagecreatetruecolor($configWidth, $configHeight);
imagecopyresampled($tmp, $src, 0,0,0,0,$configWidth,$configHeight,$origWidth,$origHeight);
imagejpeg($tmp, $_SERVER['DOCUMENT_ROOT'].$folder.$newFileName,90);
echo "<img src=".$folder.$newFileName." id=\"cropMeNowImage\">";
}
// Get Extension from Uploaded File
function getExtension($str) {
$i = strrpos($str,".");
if (!$i) {return "";}
$l = strlen($str) - $i;
$ext = substr($str,$i+1,$l);
return $ext;
}
?>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.js"></script>
<script>
(function() {
$(document).on('change','img#cropMeNowImage', function() {
alert('Ready to Crop');
});
})();
</script>