Multidimensional array search - php

From this array how could I get that array which first element is 128 and the second is 64.
$positions = array(
array('64','64','home.png','www.sdsd.vf'),
array('128','64','icon-building64.png','www.sdsd.vf')
);
Thanks for your help
Ungi.

foreach($positions as $position) {
if ($position[0] == '128' AND $position[1] == '64') {
// This is it!
}
}
Or you could drop the other members with array_filter().
$positions = array_filter($positions, function($position) {
return ($position[0] == '128' AND $position[1] == '64');
});
var_dump($positions);
Output
array(1) { [1]=> array(4) { [0]=> string(3) "128" [1]=> string(2) "64" [2]=> string(19) "icon-building64.png" [3]=> string(11) "www.sdsd.vf" } }
See it.

Related

How to group a multidimensional array by multiple subarray values?

I checked this question and answers:
How to group a multidimensional array by a particular subarray value?
He wanted to group results by 'level'. But how would you do it to group it by 'level' first and then by 'type'?
Its pretty straight forward. Loop through $items array. Get each item's level and type and if they are not set yet, initialize them with an empty array. Then just push the "cust" value into the array.
I have given the code below.
I am assuming "$items" is an array which contains the input.
$g = [];
foreach($items as $k => $v) {
$l = $v["level"];
$t = $v["type"];
$c = $v["cust"];
if(!isset($g[$l])) {
$g[$l] = [];
}
if(!isset($g[$l][$t])) {
$g[$l][$t] = [];
}
$g[$l][$t][] = [
"cust" => $c
];
}
var_dump($g);
The output of this code would be like below:
array(3) {
[1]=>
array(1) {
["standard"]=>
array(2) {
[0]=>
array(1) {
["cust"]=>
string(6) "XT8900"
}
[1]=>
array(1) {
["cust"]=>
string(6) "XT8944"
}
}
}
[3]=>
array(1) {
["premier"]=>
array(2) {
[0]=>
array(1) {
["cust"]=>
string(6) "XT8922"
}
[1]=>
array(1) {
["cust"]=>
string(6) "XT8816"
}
}
}
[7]=>
array(1) {
["standard"]=>
array(1) {
[0]=>
array(1) {
["cust"]=>
string(6) "XT7434"
}
}
}
}
[P.S.]: You can also use sort to solve this problem easily. That's another way of solving this problem.

PHP: Combining data with a shared key from a single array into new array

I have this array:
array(5) {
[0]=>
array(4) {
["productCode"]=>
string(4) "X001"
["productUPC"]=>
string(3) "261"
["productTextSeq"]=>
string(1) "1"
["productTxtVal"]=>
string(5) "Text1"
}
[1]=>
array(4) {
["productCode"]=>
string(4) "X001"
["productUPC"]=>
string(3) "261"
["productTextSeq"]=>
string(1) "2"
["productTxtVal"]=>
string(5) "Text2"
}
[2]=>
array(4) {
["productCode"]=>
string(4) "X001"
["productUPC"]=>
string(3) "261"
["productTextSeq"]=>
string(1) "3"
["productTxtVal"]=>
string(5) "Text3"
}
[3]=>
array(4) {
["productCode"]=>
string(4) "X002"
["productUPC"]=>
string(3) "262"
["productTextSeq"]=>
string(1) "1"
["productTxtVal"]=>
string(5) "Text1"
}
[4]=>
array(4) {
["productCode"]=>
string(4) "X002"
["productUPC"]=>
string(3) "262"
["productTextSeq"]=>
string(1) "2"
["productTxtVal"]=>
string(5) "Text2"
}
}
With the above input, I want the output array to look like this:
array(2) {
[0]=>
array(3) {
["productCode"]=>
string(4) "X001"
["productUPC"]=>
string(3) "261"
["productTxtVal"]=>
string(17) "Text1 Text2 Text3"
}
[1]=>
array(3) {
["productCode"]=>
string(4) "X002"
["productUPC"]=>
string(3) "262"
["productTxtVal"]=>
string(11) "Text1 Text2"
}
}
The resulting array does not need the productTextSeq key, just the combined values of productTextVal, when the productCode is the same. I've searched SO for examples of this but it seems every example I've found are based on multiple input arrays. I know I can brute force this with nested foreach functions but would love a more elegant solution.
I ended up just doing it the brute force method, here is my solution if anyone's interested:
$productData = array();
$sortedData = array();
$comments = '';
$saveKey = '';
$appendComment = false;
$idx = 0;
foreach ($data as $key=>$value) {
foreach ($value as $k=>$v) {
if ($k == 'productCode') {
if ($v == $saveKey) {
$appendComment = true;
} else {
$appendComment = false;
$saveKey = $v;
if ($idx !== 0) { // Don't write to array on first iteration!
$productData['productTxtVal'] = $comments;
$sortedData[] = $productData;
}
}
}
if ($k == 'productTxtVal') {
if ($appendComment == true) {
$comments .= ' ' . trim($v);
} else {
$comments = trim($v);
}
}
}
$productData = $value;
$idx++;
}
Not "elegant" but it works. I also have a check after this logic in case only one productCode is in the original array, as it won't be written to the $sortedData array since the key never changes.
The following code assumes you control the contents of the original data array (due to risk of injection using extract() function) and that no 2 items with the same productCode have the same productTextSeq.
$products = [];
foreach ($data as $item) {
// extract contents of item array into variables
extract($item);
if (!isset($products[$productCode])) {
// create product array with code, upc, text as array
$products[$productCode] = compact('productCode', 'productUPC') + ['productTxtVal' => []];
}
// add text value to array with sequence as index
$products[$productCode]['productTxtVal'][$productTextSeq] = $productTxtVal;
}
$products = array_values( // ignore array keys
array_map(function($product) {
ksort($product['productTxtVal']); // sort text as array by index/ sequence
$product['productTxtVal'] = implode(' ', $product['productTxtVal']); // implode into string
return $product;
}, $products)
);
You can run the code here: https://repl.it/BWQL

find / select specified ID in array php

i have array with database, and have to select only this items what have "tid" = 1
array(3) {
[1]=>
array(4) {
["tid"]=> "1"
["title"]=> "Google"
["url"]=> "http://google.com/"
["description"]=> "A very efficient search engine."
}
[2]=>
array(4) {
["tid"]=> "2"
["title"]=> "Facebook"
["url"]=> "http://facebook.com/"
["description"]=> "Trade securities, currently supports nearly 1000 stocks and ETFs"
}
[3]=>
array(4) {
["tid"]=> "1"
["title"]=> "Yandex"
["url"]=> "http://yandex.ru/"
["description"]=> "Another efficient search engine popular in Russia"
}
}
how can i select only this items from array what have "tid" = 1?
<?php
$final_arr = array();
foreach($tid_arrs as $tid_arr){
if($tid_arr['tid'] == 1){
$final_arr[] = $tid_arr;
}
}
print_r($final_arr);
?>
$filteredArray = array();
for($i = 0, $end = count($array);$i < $end;i++)
{
if($array[$i]["tid"] === "1")
{
$filderedArray[] = $array[$i];
}
}
That way $filteredArray will contain solely the items with tid 1;
Try array_filter function: http://php.net/manual/en/function.array-filter.php this should help.
print_r(array_filter($array, "filter_function"));
function filter_function($element){
return (int)$element['tid'] === 1;
}
let's say you starting array is $arr.
$result = array();
foreach ($arr as $arrItem) {
if ((array_key_exists('tid', $arrItem)) && ($arrItem['tid'] == "1")){
$result[] = $arrItem;
}
}
$result should be what you are excepted.

Multidimensional array search using another element value

I have a multi dimensional array built dynamically.
Is it possible to get the value of an element by using another element.
e.g : search with idQ = 26 and get in return value its neighbor element values like :: idA=>49 and A=>500-10000
[0]=>
array(5) {
["idQA"]=>
string(3) "194"
["idQ"]=>
string(2) "26"
["Q"]=>
string(58) "Imposition supérieur
à 2500€ d’impôts annuel"
["idA"]=>
string(2) "49"
["A"]=>
string(10) "5000-10000"
}
[1]=>
array(5) {
["idQA"]=>
string(3) "173"
["idQ"]=>
string(2) "22"
["Q"]=>
string(20) "Si oui, laquelle(s):"
["idA"]=>
string(2) "32"
["A"]=>
string(7) "Voiture"
}
Example array :: https://gist.github.com/anonymous/9234703
Yes, like:
$founded = 0;
foreach($my_array[1] as $key => $val) {
if ($val == "something_to_search") {
$founded = $key;
break;
}
}
$before = $my_array[1][$founded-1];
$after = $my_array[1][$founded+1];

How to loop through a mulitdimensional array in php?

array(2) {
["names"]=> array(4) {
[0]=> string(4) "Edit"
[1]=> string(6) "Delete"
[2]=> string(8) "Activate"
[3]=> string(10) "Deactivate"
}
["action"]=> array(4) {
[0]=> string(4) "ajax"
[1]=> string(4) "abc"
[2]=> string(4) "def"
[3]=> string(4) "xyz"
}
}
How do i loop through this in a single foreach loop?
Assuming both arrays are of the same size and have the same keys:
foreach($array['names'] as $k => $name) {
$action = $array['actions'][$k];
// do whatever you want to do with $name and $action
}
$newArr = array();
foreach($data['names'] as $i => $val) {
$newArr[$val] = $data['actions'][$i];
}
Or if you want a one liner at that
$newArr = array_combine($data['names'], $data['action']);
I guess the best way is a recursive function which can move through even three dimensions and more
function MoveThroughArray($arr)
{
foreach($arr as $value)
{
if(is_array($value))
MoveThroughArray($value);
else
// Do Something
}
}

Categories