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How does this giant regex work?

I recently found the code below in one of my directories, in a file called doc.php . The file functions or links to a file manager. It's quite nicely done. Basically, it lists all the files in the current directory, and it lets you change directories. ...
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How to allow to accept only image files?

...t is very sketchy on mobiles (as of 2015) and by some reports this may actually prevent some mobile browsers from uploading anything at all, so be sure to test your target platforms well. For detailed browser support, see http://caniuse.com/#feat=input-file-accept ...
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Lambda function in list comprehensions

... The first one creates a single lambda function and calls it ten times. The second one doesn't call the function. It creates 10 different lambda functions. It puts all of those in a list. To make it equivalent to the first you need: [(lambda x: x*x)(x) for x in range(10)] Or b...
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file_put_contents - failed to open stream: Permission denied

...he server account, but every parent directory of the target directory must allow the server account to navigate into it; I think this would be +x to the permissions. – Erhannis Aug 27 '13 at 7:57 ...
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How to remove a field from params[:something]

... = params.except[the one I wish to remove] This is a safer way to 'grab' all the params you need into a copy WITHOUT destroying the original passed in params (which is NOT a good thing to do as it will make debugging and maintenance of your code very hard over time). Or you could just pass direc...
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Entity Framework Code First - two Foreign Keys from same table

... What if two teams are allowed to play only once? – ca9163d9 Jun 8 '13 at 18:53 4 ...
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UICollectionView inside a UITableViewCell — dynamic height?

...mic number of items, resulting in a height which must be calculated dynamically as well. However, I am running into problems trying to calculate the height of the embedded UICollectionView . ...
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Win10正式版官方原版ISO镜像下载大全(64位&32位) - 软件下载 - 清泛网 - ...

...方原版 正式版【64位简体中文家庭 专业版】 文件名:cn_windows_10_multiple_editions_x64_dvd_6848463.iso 体积:4.01GB SHA1:C71D49A6...【64位简体中文家庭/专业版】 文件名:cn_windows_10_multiple_editions_x64_dvd_6848463.iso 体积:4.01GB ...
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Download data url file

... just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in. ...
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What is the difference between exit(0) and exit(1) in C?

...ccessful program termination & it is fully portable, While exit(1) (usually) indicates unsucessful termination. However, it's usage is non-portable. Note that the C standard defines EXIT_SUCCESS and EXIT_FAILURE to return termination status from a C program. 0 and EXIT_SUCCESS are the values s...