array-merge

问题 I need to merge those two arrays: $ar1 = array("color" => array("red", "green"), "aa"); $ar2 = array("color" => array( "green", "blue"), "bb"); $result = array_merge_recursive($ar1, $ar2); Expected output: [ 'color' => [ (int) 0 => 'red', (int) 1 => 'green', (int) 3 => 'blue' ], (int) 0 => 'aa', (int) 1 => 'bb' ] But it outputs: [ 'color' => [ (int) 0 => 'red', (int) 1 => 'green', (int) 2 => 'green', (!) (int) 3 => 'blue' ], (int) 0 => 'aa', (int) 1 => 'bb' ] I'm looking for the simplest way

问题 I'm merging together arrays with the same set inner array name, changing the key value to the order number then creating further inner arrays for items that are not duplicated with this code... function readCSV($csvFile) { $line_of_text = []; $file_handle = fopen($csvFile, 'r'); //skip csv headers //fgetcsv($file_handle); //fgetcsv($file_handle); fgetcsv($file_handle); while (!feof($file_handle)) { $tmp = fgetcsv($file_handle, 1024); if (isset($line_of_text[$tmp[0]])) { foreach ($tmp as $k =>

问题 Need to prepare data from .txt file for importing in database via browser. In the example below, there is .txt file (about 40 000 lines). I need to combine every 6 records in one array (first is always timestamp in the example). So, as I understand, some loop is necessary. Tried to find some examples (too easy) but didn't succeed. I appreciate any help you can provide even some link. .txt example 1=19-10-18 10:02:06 2=+1.313026E+00 l/s 3=+1.671796E-01m/s 4=+1.500691E+02m3 5=+1.501138E+02m3 6=

问题 This question already has answers here : Combine same-index objects of two arrays (4 answers) Closed last year . I have two arrays and I want to merge the values of the two arrays into a single array, but both arrays have different values. Example: var arr1 = [ { data1: 1 ,data2: "value1"}, { data1: 1 ,data2: "value2"}, { data1: 2, data2: "value3"}, { data1: 3 ,data2: "value3"}, { data1: 3 ,data2: "value3"} ]; var arr2 = [ { data1:1, data3:"val1"}, { data1: 1, data3: "val2"}, { data1: 2,

问题 I have an array in PHP code below, and I want to convert this array to be grouped by data value. It's always hard to simplify arrays. Original array: Array ( [0] => Array ( [date] => 2017-08-22 [AAA] => 1231 ) [1] => Array ( [date] => 2017-08-21 [AAA] => 1172 ) [2] => Array ( [date] => 2017-08-20 [AAA] => 1125 ) [3] => Array ( [date] => 2017-08-21 [BBB] => 251 ) [4] => Array ( [date] => 2017-08-20 [BBB] => 21773 ) [5] => Array ( [date] => 2017-08-22 [CCC] => 3750 ) [6] => Array ( [date] =>

问题 I have 3 arrays like this: $a = array( 0 => 'a1', 1 => 'a2', 2 => 'a3' ); $b = array( 0 => 'b1', 1 => 'b2', 2 => 'b3' ); $c = array( 0 => 'c1', 1 => 'c2', 2 => 'c3' ); and I like to have something like this: $r = array( 0 => 'a1', 1 => 'b1', 2 => 'c1', 3 => 'a2', 4 => 'b2', 5 => 'c2', 6 => 'a3', .... ... ); How can I do this AND enjoy the ability to use more then 3 input arrays? EDIT: I have tried this: $a = array( 0 => 'a1', 1 => 'a2', 2 => 'a3', 3 => 'a4' ); $b = array( 0 => 'b1', 1 => 'b2'

问题 How can I merge arrays in JS so that the indexes of original elements in both arrays stays the same? It seems that the spread array does not do what I needed: let testArray: Array<any> = []; testArray[4] = 'test4'; testArray[2] = 'test2'; testArray[15] = 'test15'; let otherTestArray = []; otherTestArray[3] = 'test3'; otherTestArray[5] = 'test5'; console.log(testArray); let testar = [...testArray, ...otherTestArray]; console.log(testar); 2:"test2" 4:"test4" 15:"test15" 19:"test3" 21:"test5"

问题 I've got JSON column storing a document. I want to perform atomic UPDATEs on this column. Given e.g. value: [{"substanceId": 182, "text": "substance_name_182"}, {"substanceId": 183, "text": "substance_name_183"}] and the update [{"substanceId": 182, "text": "substance_name_182_new"}, {"substanceId": 184, "text": "substance_name_184"}] I expect to get this: [{"substanceId": 182, "text": "substance_name_182_new"}, {"substanceId": 183, "text": "substance_name_183"} {"substanceId": 184, "text":

问题 I have an application that connects to multiple server. where one server will have ID that are foreign key to a table that is located on a different server. The issue here is that MySQL does not support linked servers so I can't run a left query that will LEFT join 2 tables located on separate servers. So I have to pull 2 separate queries from 2 different server using PHP and they LEFT JOINing them using PHP. Please note that the array keys listed below needs to be dynamic. I can't use a

问题 How can I do a deep extension of a multi dimensional associative array (for use with decoded JSON objects). I need the php equivalent of jQuery's $.extend(true, array1, array2) with arrays instead of JSON and in PHP. Here's an example of what I need (array_merge_recursive didn't seem to do the same thing) $array1 = ('1'=> ('a'=>'array1a', 'b'=>'array1b')); $array2 = ('1'=> ('a'=>'array2a', 'c'=>'array2b')); $array3 = array_extend($array1, $array2); //$array3 = ('1'=> ('a'=>'array2a', 'b'=>