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
}
}
Related
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
I am currently getting the same $val results but the $key is working fine. What am i doing wrong?
foreach($awards['award_title'] as $key) {
foreach($_POST['award_title_new'] as $val)
$award_title_trans[$key] = $val;
}
update_option('award_title', $award_title_trans );
$awards array:
["award_title"]=>
array(2) {
[0]=>
string(7) "testnew"
[1]=>
string(5) "newti"
}
and the $POST is an input array name='award_title_new[]'
What i am expecting is to save the $awards value as a key and the $POST as the value:
array(2) {
["testnew"]=>
string(3) "345"
["newti"]=>
string(3) "345"
}
This did the trick!
array_combine($awards['award_title'], $_POST['award_title_new']);
array(2) {
["testnew"]=>
string(3) "hello"
["newti"]=>
string(3) "bye"
}
Absolutely doing my head in here over something that I'm sure is very simple...
I have 2 arrays.
$post_cats which are categories that any given post is in.
$ad_cats which is an array of categories in which ads are placed.
Basically, if a post has in its array of selected categories, a category that matches an item in the array of ad categories, then it must return the matching value/item.
$post_cats returns this
array(4) {
[0]=> array(1) { ["slug"]=> string(6) "energy" }
[1]=> array(1) { ["slug"]=> string(6) "global" }
[2]=> array(1) { ["slug"]=> string(8) "identify" }
[3]=> array(1) { ["slug"]=> string(5) "south" }
}
and $ad_cats returns this
array(6) {
[0]=> array(1) { ["slug"]=> string(5) "north" }
[1]=> array(1) { ["slug"]=> string(5) "south" }
[2]=> array(1) { ["slug"]=> string(4) "east" }
[3]=> array(1) { ["slug"]=> string(4) "west" }
[4]=> array(1) { ["slug"]=> string(6) "global" }
[5]=> array(1) { ["slug"]=> string(8) "fallback" }
}
The duplicated item there is "south", so in my mind the value of array_intersect($post_cats, $ad_cats); should be an array with a single item - "south", correct?
But its returning, what seems like, everything in either of the arrays... I can't for the life of me get it to work..
Using the above example, I need to return "south" to a variable.
So you are looking for items that are in both arrays? ...
What about something like this:
function find_duplicate($array1, $array2)
{
$list = array();
foreach($array1 as $value1)
{
foreach($array2 as $value2)
{
if($value1 == $value2) $list[] = $value1;
}
}
return $list;
}
The best way is to convert those arrays in arrays array_intersect can work with.
Considering:
$a; // first array
$b; // second array
then you would go with:
$a1 = array();
foreach ($a as $v) $a1[] = $v['slug'];
$b1 = array();
foreach ($b as $v) $b1[] = $v['slug'];
$c = array_intersect($a1, $b1);
PHP functions usually work with more powerful algorithms than what you may think; therefore it's a good choice to let PHP functions handle this kind of things.
This solution uses array_map to get at the values and takes the intersection of that
function mapper($a)
{
return $a['slug'];
}
$set1 = array_map('mapper', $post_cats);
$set2 = array_map('mapper', $ad_cats);
$result = array_intersect($set1, $set2);
PhpFiddle for testing.
Guys i've got an array thats like this:
array(3) {
[2]=>
array(1) {
["name"]=>
array(2) {
[0]=>
string(13) "row1"
[1]=>
string(13) "row3"
}
}
[5]=>
array(1) {
["name"]=>
array(2) {
[0]=>
string(15) "row1"
[1]=>
string(15) "row3"
}
}
[3]=>
array(1) {
["name"]=>
array(2) {
[0]=>
string(13) "row1"
[1]=>
string(13) "row3"
}
}
What i want to achieve is make foreach loop the 0 elements (row1) and then loop through 1 (row3) and go on like this. Is there a way to do that?
You could try to rebuild the array:
$rows = array();
foreach($array as $subarray)
foreach($subarray as $key => $value)
$rows[$key][] = $value;
At this point al the same subelements from the array are together in a new array, and now you can easy loop over a subelement:
foreach($rows as $key => $value)
echo 'processing row: ' . $key ' with value ' . $value;
I found a different approach to this problem, the JvdBeg solution is working wonderful, but if someone is stuck in a similar situations, this is how i did it:
$key = key($arr);
$keys = array_keys($arr);
for ($i=0;$i<sizeof($arr[$key]['index']);$i++) {
for($k=0;$k<sizeof($arr);$k++) {
$key = $keys[$k];
echo "\n";
}
}
I have this multidimension array in which I need to update a value. What would be the best way to do so? I tried it with 2 foreach loops but wasn't sure if that was the right approach.
Here is the array in question. I need to update the dollar amount on each sub array (i.e. add 3 to it).
array(6) { ["Ground"]=> array(2) { [0]=> string(3) "USD" [1]=> string(5) "13.63" }
["3 Day Select"]=> array(2) { [0]=> string(3) "USD" [1]=> string(5) "25.26" }
["2nd Day Air"]=> array(2) { [0]=> string(3) "USD" [1]=> string(5) "32.43" }
["Next Day Air Saver"]=> array(2) { [0]=> string(3) "USD" [1]=> string(5) "63.00" }
["Next Day Air"]=> array(2) { [0]=> string(3) "USD" [1]=> string(5) "68.65" }
["Next Day Air Early AM"]=> array(2) { [0]=> string(3) "USD" [1]=> string(6) "103.68" } }
Your foreach loop approach would be correct, unless you expect the data format to change e.g. to have more nested levels. If that were the case, then a recursive function would be best suited.
Also, if the data is expected to remain uniform, you could do this:
foreach( $my_array as $index => $row ){
$my_array[$index][1] += 3;
}
cheers!
foreach ($arr as $k=>$row) {
$arr[$k][1] = floatval($row[1]) + 3;
}
foreach ($array as &$subarray) {
foreach ($subarray as $key=>&$value) {
// do whatever you want with $value
// ...
$value = 'something else'; // example
}
}
Try this:
<?php
foreach($first_array as $first_dem_key)
$first_array[$first_dem_key][1] = $first_array[$first_dem_key][1] + 3;
?>