php开发问题

overriding upload_max_filesize(覆盖 upload_max_filesize)
Ajax file upload(Ajax 文件上传)
Max file number can php upload at same time(最大文件数可以同时php上传)
How to test if a user has SELECTED a file to upload?(如何测试用户是否选择了要上传的文件?)
Convert JPG/GIF image to PNG in PHP?(在 PHP 中将 JPG/GIF 图像转换为 PNG?)
Very large uploads with PHP(使用 PHP 进行非常大的上传)
PHP Upload, extract and progressbar(PHP 上传、解压和进度条)
Upload 1GB files using chunking in PHP(在 PHP 中使用分块上传 1GB 文件)
PHP post_max_size overrides upload_max_filesize(PHP post_max_size 覆盖upload_max_filesize)
Can file uploads time out in PHP?(文件上传可以在 PHP 中超时吗?)
How can I only allow certain filetypes on upload in php?(如何只允许在 php 中上传某些文件类型?)
How to gracefully handle files that exceed PHP#39;s `post_max_size`?(如何优雅地处理超过 PHP `post_max_size` 的文件?)