I have the following code:
foreach ($row as $item) {
if (!in_array($item['login_id'], $tmp)) {
$tmp[] = $item['brand'];
$tmp[] = $item['login_id'];
$tmp[] = $item['name'];
}
}
This provides the following output:
array(408) {
[0]=> string(4) "ABC"
[1]=> string(8) "r4ft6tg7"
[2]=> string(8) "Aberdeen"
[3]=> string(4) "ABC"
[4]=> string(8) "1ws3edft"
[5]=> string(18) "Birmingham Airport"
[6]=> string(4) "DDD"
[7]=> string(8) "bgt6yhnj"
[8]=> string(27) "Birmingham City"...}
I am trying to then loop through this array and add them to a dropdown using the following:
$a = 0;
$b = 1;
$c = 2;
foreach ($tmp as $value) {
echo "<option name='".$value[$a]."'
value='".$value[$b]."'>
".$value[$c]."
</option>";
$a=$a+3;
$b=$b+3;
$c=$c+3;
}
However the output is most odd:
<option name='I' value='b'>i</option>
The output I expected and need is:
<option name='ABC' value='r4ft6tg7'>Aberdeen</option>
Any suggestions, feedback on where I am going wrong would be appreciated.
I believe this is what you meant:
foreach ($row as $item) {
if (! array_key_exists($item['login_id'], $tmp)) {
$tmp[$item['login_id']] = array($item['brand'], $item['login_id'], $item['name']);
}
}
EDIT: Fixed index of $tmp above (and how to check for index).
Then your following code could work the same, omitting the increments of $a, $b, $c (and hence omitting those three variables altogether):
foreach ($tmp as $value) {
echo "<option name='".$value[0]."'
value='".$value[1]."'>
".$value[2]."
</option>";
}
You were mistakenly treating $tmp as both a one- and two-dimensional array. Actually setting it up to be a two-dimensional array resolves that. As pointed out in the comments, in your original code, $value was a string, and accessing an index of a string like you would an array yields the given character in the string.
Also, for clarity, you might consider making each subarray in $tmp an asssociative array.
E.g.
$tmp[$item['login_id']] = array('brand' => $item['brand'], ... and then accessing it accordingly in your latter foreach loop.
Related
I'm having an issue when I dump the array below. This dumps several arrays. Some are 2 some are 3, which complicates it even more. Basically what I want I put below. I have tried array_push, array_combine, array_merge, several different ways including $array[$param] = $insertValue and I'm stuck. I am open to creating a brand new array too.
Please note not all arrays are counts of 3 but always return at least 1.
Original array:
array(3) {
[0]=>
array(2) {
["contact_id"]=>
string(9) "CONTACTID"
["contact_id_content"]=>
string(19) "123456789123456"
}
[1]=>
array(2) {
["sm_owner"]=>
string(9) "SMOWNERID"
["sm_owner_content"]=>
string(19) "123456798452"
}
[2]=>
array(2) {
["contact_owner"]=>
string(13) "Contact Owner"
["contact_owner_content"]=>
string(16) "Jane Doe"
}
Array desired:
array(3) {
[0]=>
array(6) {
["contact_id"]=>
string(9) "CONTACTID"
["contact_id_content"]=>
string(19) "123456789123456"
["sm_owner"]=>
string(9) "SMOWNERID"
["sm_owner_content"]=>
string(19) "123456798452"
["contact_owner"]=>
string(13) "Contact Owner"
["contact_owner_content"]=>
string(16) "Jane Doe"
}
try this code:
$NewArray = array();
foreach($OriginalArray as $value) {
$NewArray[] = array_merge($value,$NewArray);
}
or you can use array_merge_recursive
let $result = [];
foreach ($yourarray as $key => $value) {
$result = $value;
}
var_dump($result);
Here you go: How to Flatten a Multidimensional Array? – Barmar 23 mins ago
function flatten($array)
{
return array_reduce($array, function($acc, $item){
return array_merge($acc, is_array($item) ? flatten($item) : [$item]);
}, []);
}
// loop the individual fields
for ($i=0; $i<count($row_data); $i++) {
$newArray = flatten([$i => $response_row]);
}
Try something like this:
function flatten(array $array) : array
{
$newArray = [];
foreach ($array as $subArray) {
foreach ($subArray as $key => $value) {
$newArray[$key] = $value;
}
}
return $newArray;
}
I have a database with multiple records. It is structured like this:
["data"]=>
array(5) {
[1]=>
[2]=>
array(11) {
[0]=>
string(1) "0"
[1]=>
string(8) "25000000"
[2]=>
string(3) "day"
[3]=>
string(5) "0.00%"
[4]=>
string(9) "404049904"
[5]=>
string(1) "0"
[6]=>
string(5) "0.00%"
[7]=>
string(1) "0"
[8]=>
string(1) "0"
[9]=>
string(1) "0"
[10]=>
string(3) "0.0"
}
I need to fetch the 8th record and I do this by using
public static function($data)
{
$array = [];
$path = $data->data[2];
foreach($path as $key => $item)
if($key > 1)
{
$array[] = [$item->data[8]];
}
return json_encode($array);
}
This foreach takes all the 8th values from the array but I need to display a single number which is the average of all the 8th values. How can I do this?
Once you've got your array containing all your data, simple sum the array and then divide by the size of the array.. something along these lines
$average = (array_sum($array) / count($array));
Of course you may want to check for count($array) being 0;
Because you put your value into a new array, you can not use array_sum to sum the values, so you should store it.
$sum = 0;
foreach($path as $key => $item)
if($key > 1) {
$array[] = [$item->data[8]];
$sum += $item->data[8];
}
}
$avg = ($sum / count($array); //the average
var_dump($avg);
If is it possible, just put it as a value:
$array[] = $item->data[8]; //no wrapping []
In this case, you can use $avg = array_sum($array) / count($array);
if (count($array)>0){
$avg = array_sum($array) / count($array);
}
I would personally do those calculations in the database before the data gets to your PHP script itself. See AVG().
If you can't for some reason use that I would output those values into a flat array and then just calculate the average. So something like :
function getAverage($data) {
$flatArray = array();
foreach ($data as $row) {
if (!empty($row->8)) {
$flatArray[] = $row->8;
}
}
return (array_sum($flatArray)/count($flatArray));
}
EDIT: Moved to Object traversing on the data row, sorry, missed that initially and thought it was an array in all the nests.
Since you have a loop within your static Method; why not do the calculation therein and return it or add it to the JSON Data if You need your Data in JSON Format? Here's what's implied by the above:
public static function getAverageSum($data) {
$array = [];
$path = $data->data[2];
$sumTotal = 0.00; //<== YOU COULD JUST SUM IT DIRECTLY WITHOUT USING AN ARRAY
foreach($path as $key => $item) {
if ($key > 1) {
$array[] = $item->data[8];
$sumTotal += floatval($item->data[8]);
}
}
// IF YOU ARE ONLY INTERESTED IN THE AVERAGE SUM YOU COULD EVEN ADD IT IT TO THE $array AS AN EXTRA KEY
// LIKE SO:
$arrLen = count($array);
$array['avgSum'] = $sumTotal/$arrLen;
// IF YOU NEED YOUR DATA IN JSON... THEN RETURN THE JSON ENCODED DATA WITH SUM AS PART OF THE DATA.
// YOU'D HAVE NO NEED FOR array_sum() SINCE YOU DID YOUR PREP-WORK ALREADY...
return json_encode($array);
// ALTERNATIVELY; IF ALL YOU NEED IS JUST THE AVERAGE SUM; YOU COULD AS WELL DIRECTLY RETURN $sumTotal/$arrLen
return ($sumTotal/$arrLen);
}
I have seen the following: array_merge() How can I add a 'range' of an array name and the answers don't work for me.
I have an array that I am looping through in order to slice and convert certain currency strings to float numbers. I then have to array_merge them back together in order to work with the array and have been dynamically naming them so that I don't overwrite the previous array_merge. After doing so, I then need to combine all of the dynamically named arrays into one array.
Initially I had the following code, which worked great when I only had 3 nested arrays in the $order['product'] array. However, this number varies, and the code needs to do so as well.
$nr = 1;
foreach ($order['product'] as $product) {
$product_total = array_slice($product, 1);
array_walk($product_total, "convertCurrencyStringtoNumber");
${"final_product" . $nr} = array_merge($product, $product_total);
$nr++;
};
$arrays = array($final_product1, $final_product2, $final_product3);
var_dump($arrays);
This results in the following array:
array(3) {
[0]=> array(2) {
["source_code"]=> string(10) "408000-025"
["total"]=> float(18) }
[1]=> array(2) {
["source_code"]=> string(10) "408000-025"
["total"]=> float(17) }
[2]=> array(2) {
["source_code"]=> string(10) "408000-025"
["total"]=> float(2.75) } }
How do I implement a varied number of dynamically named arrays in the line:
$arrays = array($final_product1, $final_product2, $final_product3);
I attempted the following, but the array is nested incorrectly. Feel free to fix this code or come up with a better solution.
$nr = 1;
$i = 1;
foreach ($order['product'] as $product) {
$product_total = array_slice($product, 1);
array_walk($product_total, "convertCurrencyStringtoNumber");
${"final_product" . $nr} = array_merge($product, $product_total);
if ($nr > 0) {
$arrays = $final_product1;
for ($i = 2; $i <= $nr; $i++) {
$arrays = array_merge($arrays, ${"final_product" . $nr});
}
} else {
echo "There are no products in this order";
}
$nr++;
};
var_dump($arrays);
This results in the incorrectly nested array:
array(2) {
[0]=> array(2) {
[0]=> array(2) {
["source_code"]=> string(10) "408000-025"
["total"]=> float(18) }
[1]=> array(2) {
["source_code"]=> string(10) "408000-025"
["total"]=> float(17) } }
[1]=> array(2) {
["source_code"]=> string(10) "408000-025"
["total"]=> float(2.75) } }
Simply replace your dynamically single-named variables with an array:
$final_product = array();
foreach ($order['product'] as $product) {
$product_total = array_slice($product, 1);
array_walk($product_total, "convertCurrencyStringtoNumber");
$final_product[] = array_merge($product, $product_total);
};
var_dump($final_product);
Unless I'm missing something here... this should be as easy and simple as:
$final_array=[];
foreach ($order['product'] as $product) {
$final_array[]['total'] = (float) $product['whatever value 1 is...'];
$final_array[]['source_code'] = $product['source_code'];
}
var_dump($final_array);
If you need to apply convertCurrencyStringtoNumberbecause it does something weird to the variable then changethe seccond line to:
$final_array[]['total'] = convertCurrencyStringtoNumber(array_slice($product, 1));
this is my array:
$array= array(3) {
[0]=> array(3) { ["name"]=> "one" ["com"]=> "com1" ["id"]=> "1" }
[1]=> array(3) { ["name"]=> "two" ["com"]=> "com2" ["id"]=> "2" }
[2]=> array(3) { ["name"]=> "three" ["com"]=> "com3" ["id"]=> "3" }
I need posibility to change values of name and com for specific id. I try some examples from Stack questions:
1.Link1
foreach($array as &$value){
if($value['id'] == 1){
$value['name'] = 'test';
$value['com'] = 'test';
break; // Stop the loop after we've found the item
}
}
But it don't work. no error but no result too.
2.Link 2
Again,no error message,but no result...
I also try a lot of other examples from Stack but fake,and finaly to write a question..
Buy,
P
Since you are not changing your array value that's why it's-not giving you desired output. Try this:-
foreach($array as $key => &$value){
if($key == 1){
$array[1]['name'] = 'test';// change value to original array
$array[1]['com'] = 'test'; //change value to original array
break; // Stop the loop after we've found the item
}
}
for($i=0;$i<count($array);$i++) {
if($array[$i]['id'] == 1) {
$array[$i]['name'] = 'test';
$array[$i]['com'] = '';
break;
}
}
print_r($array);
If you are able to change the array on creation I would recommend shifting the id to the array's key identifier. Would make life a lot easier to just do:
$array[1]['name'] = 'test';
Otherwise use the for loop posted above and look it up. (Right awnser)
I have an array that groups different items by item type. I am grouping the result by category_id field. What I want is the output to be
item1 = 3
item2 = 2
My array looks like this if I do a var_dump()
array(2) {
["item1"]=>
array(3) {
[0]=>
string(1) "3"
[2]=>
string(1) "5"
[4]=>
string(1) "7"
}
["item2"]=>
array(2) {
[1]=>
string(1) "4"
[3]=>
string(1) "6"
}
}
Here is the code I am using:
$items = Item::where('order_id','=',$payload["orderId"])->get();
$itemsGrouped = [];
$count = 0;
foreach($items as $item){
$itemsGrouped[$item->category_id][$count] = $item->id;
$count++;
}
foreach($itemsGrouped as $grp){
echo key($itemsGrouped).'='.count($grp).'<br>';
};
And here is what I am currently getting. The count is working but not the $itemsGrouped key. It is duplicated.
item2=3<br>item2=2<br>
Change your code as below
foreach($itemsGrouped as $key => $grp){
echo $key.'='.count($grp).'<br>';
};
In order to use key() function, you need to traverse the array using next/current function
foreach($itemsGrouped as $key => $grp){
echo $key.'='.count($grp).'<br>';
};
key() function returns the current element's key, which is defined by an array's internal pointer. Obviously it always points to the last element.
$myarray = "Your array";
$count = array(); // create an empty array
foreach($myarray as $arr) {
foreach($arr as $a) {
$key = array_keys($a);
$count[$key[0]]++;
}
}
print_r($count);