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How to get an array of specific “key” in multidimensional array without looping

...ap(function ($ar) {return $ar['id'];}, $users); Before(Technically php 4.0.6+), you must create an anonymous function with create_function instead: $ids = array_map(create_function('$ar', 'return $ar["id"];'), $users); s...
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Linux: compute a single hash for a given folder & contents?

...d xargs. One possible command would be find path/to/folder -type f -print0 | sort -z | xargs -0 sha1sum | sha1sum And, finally, if you also need to take account of permissions and empty directories: (find path/to/folder -type f -print0 | sort -z | xargs -0 sha1sum; find path/to/folder \( -typ...
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Difference between Activity and FragmentActivity

... answered May 7 '12 at 7:06 Alex LockwoodAlex Lockwood 80.3k3636 gold badges196196 silver badges242242 bronze badges ...
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horizontal line and right way to code it in html, css

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Get value of dynamically chosen class constant in PHP

...7 Brad 140k3737 gold badges282282 silver badges452452 bronze badges answered May 27 '11 at 2:20 Dan SimonDan S...
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Does constexpr imply inline?

... 140 Yes ([dcl.constexpr], §7.1.5/2 in the C++11 standard): "constexpr functions and constexpr const...
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Android Studio/Intellij Idea: “Table of Contents” for a class

... Chris Jester-YoungChris Jester-Young 200k4444 gold badges362362 silver badges409409 bronze badges ...
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ASP MVC href to a controller/view

...;Clients</span> </a> The result would have http://localhost/10000 (or with whatever port you are using) to be appended to the URL structure like: http://localhost:10000/Users I hope this helps. share ...
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Git merge errors

...| edited May 23 '17 at 12:02 Community♦ 111 silver badge answered May 15 '11 at 7:23 ...
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How can I use grep to show just filenames on Linux?

... 1703 The standard option grep -l (that is a lowercase L) could do this. From the Unix standard: -l...