“退伍军人症”是由“退伍军人杆菌”（Legionella spp）引发的急性肺炎及呼吸道感染。该病得名于1976年美国宾夕法尼亚州一次退伍军人聚会后的“浩劫”——与会的221位退伍军人中，有34人死于不明病原的肺炎。从死者肺部组织中分离出了一种相当特殊的细菌，后被命名为“退伍军人杆菌”。英国一项研究发现，司机患上该病的几率是普通人的5倍，罪魁祸首可能是车辆的雨刷。 Ref: http://www.hudong.com/wiki/%E9%80%80%E4%BC%8D%E5%86%9B%E4%BA%BA%E6%9D%86%E8%8F%8C Ref: http://en.wikipedia.org/wiki/Legionella_longbeachae

This idea sounds easy and stuff. I agree. I assume you already got it working fine. But perhaps one day you may notice something is not working well, especially when you are dealing with bigger files. Below are a few things you want to look out for. Change your /etc/php.ini upload_max_filesize = 2M post_max_size = 8M memory_limit = 128M The default upload file size is 2M, which could be too small. If your upload file is larger than this, you will receive an empty upload file at your server side. So, increase this. While if you are using ajax to post-send, increase the post_max_size limit. Another thing to watch out for is memory_limit. If you somehow make copies of big blobs in your code, increasing PHP’s memory limit is also a good idea. ...

I have read many online articles on this topic. However, they either just show how to do ajax form submission, or how to submit just files. In my case, well I bet in most real life situations, we need to submit both ordinary text/selection/radio values and files. Here is how to do it. HTML forms. Yea, whatever. Just set something up. Submit Notice I didn’t use the form tag. My philosophy here is that: since we will decide the data set during the ajax submission, there is really no need to declare a form here. ...

Recently, I needed to read from a mounted drive on osx using Apache and PHP. I need to grab some file names in a certain directory using opendir or scandir, then dynamically populate a select dropdown box. The issue is, the default apache user is _www being in the _www group, while the mounted drive allows only the “staff” group to enter. In my case, I cannot change the mounted drive access permissions. ...

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If you are using the jQuery datatable with the editable extension, you probably know that you can only highlight one single row (tr). In my opinion, that’s really for the purpose of integrating the single row add/delete functions. If you need to implement multiple row operations, thus needing multiple row selection, here is how you can do it: Open up jquery.dataTables.editable.js Toward the end of the file, look for $(oTable.fnSettings().aoData).each(function () { $(this.nTr).removeClass(properties.sSelectedRowClass); }); ...

ref link: http://xkcd.com/936/

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I clicked on the install button on the Mac App Store to install Xcode for Lion. But then after the download was done, nothing happened. If you are in the same boat, keep reading. It turns out that there is this new thing called Launchpad on your dock. The “Install Xcode” icon is sitting there for you to click on. But before that, do the following to save you trouble. ...