multidimensional-array

问题 How to convert this* string: $arrKeys = ['lev1', 'lev2', 'lev3']; $val = 'foo'; In to the following array: Array ( [lev1] => Array ( [lev2] => Array ( [lev3] => foo ) ) ) *Number of array keys may vary. Each array key except the last one represents Array. Thank you! 回答1: No recursion necessary: $arrKeys = array_reverse(['lev1', 'lev2', 'lev3']); $val = 'foo'; $result = $val; foreach ($arrKeys as $key) { $result = [$key => $result]; } print_r($result); // Array // ( // [lev1] => Array // ( //

问题 Here is my array i.e., I used to print_r($Result); So the output is given below, Here how can i take only the FullName I tried to take echo $Result['FullName']; But it is showing undefined index. How can i get the fullname from this array ?? ./1430714172resume.docxArray ( [ResumeId] => Array ( [@attributes] => Array ( [ResumeParserProductName] => RecruitPlus Resume Parser ) [ResumeParserOrgName] => ITCONS e-Solutions Private Limited ) [StructuredXMLResume] => Array ( [ContactInfo] => Array (

问题 I have two multi-dimensional arrays. I need to concatenate the two without loosing any values which have the same key and different values. Here is the scenario: Array1 ( [0] => 11 [2] => 12 [3] => 13 [4] => ( [0] => 100 [1] => 200 ) [5] => 2 [6] => 3 ) Array2 ( [0] => 11 [2] => 12 [3] => 13 [4] => ( [0] => 400 [1] => 500 ) [5] => 2 [6] => 3 ) The result should be Result ( [0] => 11 [2] => 12 [3] => 13 [4] => ( [0] => ( [0] => 100 [1] => 400 ) [1] => ( [0] => 200 [1] => 500 ) ) [5] => 2 [6] =

问题 I need a fast way to check if a 2d array is entirely adjacent, meaning all values are adjacent to other same values. Adjacent means the four cardinal directions. This would be an adjacent array [1 1 2] [1 2 2] [3 3 3] This isn't [1 2 1] [1 2 2] [3 3 3] This is [1 2 4] [1 2 2] [3 3 3] So far, I've tried an O(M * N) method where I go through the whole array and check if at least one of the neighbors is the same value. I'm looking for a possibly faster way. EDIT: just noticed my method doesn't

问题 I decided it would be a nice challenge to build a library to handle all kinds of matrix calculations, in pure C. Now, even though I have some pretty good experience with Objective-C and Cocoa, my knowledge of C is just what I need to work with Objective-C and not much more. So, for example, I'm familiar with the concept of pointer, arrays, etc in C, but not with malloc and free (ARC is a bliss!). I decided to embrace this project so I can get more C experience (besides having loads of fun

问题 I decided it would be a nice challenge to build a library to handle all kinds of matrix calculations, in pure C. Now, even though I have some pretty good experience with Objective-C and Cocoa, my knowledge of C is just what I need to work with Objective-C and not much more. So, for example, I'm familiar with the concept of pointer, arrays, etc in C, but not with malloc and free (ARC is a bliss!). I decided to embrace this project so I can get more C experience (besides having loads of fun

问题 I'm writing a C function for matrix multiplication. It takes two 2D arrays of ints. I could do this if I knew the dimensions of the input arrays, but I'd like to make a more general function. How to find their dimensions, and how to return an array when I don't know the product's dimensions on compile-time? 回答1: You can't find out the dimensions of an array if all you have is a pointer to the beginning of the array. You will need to pass the dimensions of the array to the functions. 回答2: This

问题 I would like to convert this two dimensional array of records: [records] => Array ( [0] => Array ( [0] => Pears [1] => Green [2] => Box [3] => 20 ) [1] => Array ( [0] => Pears [1] => Yellow [2] => Packet [3] => 4 ) [2] => Array ( [0] => Peaches [1] => Orange [2] => Packet [3] => 4 ) [3] => Array ( [0] => Apples [1] => Red [2] => Box [3] => 20 ) ) Into this three dimensional array where each array key is grouped by a certain value from the original array: [converted_records] => Array ( [Pears]

问题 I have a PHP array that looks like this: http://pastie.org/1346063 (see pastie for array example) What I want to do is re-sort that array into another array that is sorted by each array's [votes][POINTS] sub-array numerically descending. The array with the highest [votes][POINTS] value will be the first listed in the main array. 回答1: Using the usort() function we can create our own comparison function: function cmp($a, $b) { if($a['votes']['POINTS'] == $b['votes']['POINTS']) { return 0; }

问题 I'm working on an array shaped as follows (64, 1, 64, 64) This is in fact one grayscale image that was split into 64 patches, each patch with 64*64px. Now I need to rebuild it into a 512*512px image. I've tried using np.reshape(arr, (512, 512)) but of course the resulting image is not as expected. How do I resolve this? 回答1: It depends on how your patches are arranged. But the first thing you could try is image.reshape(8, 8, 64, 64).swapaxes(1, 2).reshape(512, 512) This is assuming that the