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Difference between array_map, array_walk and array_filter

...rary parameter to pass to the callback. This mostly irrelevant since PHP 5.3 (when anonymous functions were introduced). Length of Returned Array: The resulting array of array_map has the same length as that of the largest input array; array_walk does not return an array but at the same time it c...
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Rails: create on has_one association

... 123 First of all, here is how to do what you want: @user = current_user @shop = Shop.create(params[...
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Difference between database and schema

...ermissions by schema. EDIT for additional question drop schema test1 Msg 3729, Level 16, State 1, Line 1 Cannot drop schema 'test1' because it is being referenced by object 'copyme'. You cannot drop a schema when it is in use. You have to first remove all objects from the schema. Related reading...
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Removing a model in rails (reverse of “rails g model Title…”)

... | edited Jul 22 '13 at 19:43 answered Aug 18 '11 at 10:35 ...
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How to read multiple text files into a single RDD?

... 301 You can specify whole directories, use wildcards and even CSV of directories and wildcards. E...
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How does Activity.finish() work in Android?

... CommonsWareCommonsWare 873k161161 gold badges21342134 silver badges21612161 bronze badges ...
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Visual Studio: Multiple post-build commands?

... | edited May 30 '14 at 14:22 Joe 5,94811 gold badge2626 silver badges3232 bronze badges ans...
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How to get overall CPU usage (e.g. 57%) on Linux [closed]

... Mike Q 4,50411 gold badge3737 silver badges5151 bronze badges answered Feb 10 '12 at 14:48 vimdudevimdude ...