( [0] => Array
( [0] => Array (
[0] => Array ( [price] => 76 )
[1] => Array ( [price] => 200 )
[2] => Array ( [price] => 500 )
[3] => Array ( [price] => 67 )
is there a clean way to calculate all these prices
Doing some digging at the array_sum() manual (reading in the user section) I came across this function:
function array_sum_key( $arr, $index = null ){
if(!is_array( $arr ) || sizeof( $arr ) < 1){
return 0;
}
$ret = 0;
foreach( $arr as $id => $data ){
if( isset( $index ) ){
$ret += (isset( $data[$index] )) ? $data[$index] : 0;
}else{
$ret += $data;
}
}
return $ret;
}
How I would in-vision you using it, given the remarks at the manual
$sum = array_sum_key($products[0][0], 'price');
Hopefully it works out for you, as that should be an easy solution :)
Related
In array list [hide] =>1 having 2 times, how to execute a [hide] =>1 only one time in for loop . how to check current array with all previous value and [hide] =>1 execute once in the for loop
need to execute [id] =>4 , no need to execute a [id] => 2 in for loop
Array
Array (
[0] => Array ( [id] => 6 [hide] => 0 )
[1] => Array ( [id] => 5 [hide] => 0 )
[2] => Array ( [id] => 4 [hide] => 1 )
[3] => Array ( [id] => 3 [hide] => 0 )
[4] => Array ( [id] => 2 [hide] => 1 )
)
Try this..... You can use this function for any depth of the associated array.
function is_in_array($array, $key, $key_value){
$within_array = 'no';
foreach( $array as $k=>$v ){
if( is_array($v) ){
$within_array = is_in_array($v, $key, $key_value);
if( $within_array == 'yes' ){
break;
}
} else {
if( $v == $key_value && $k == $key ){
$within_array = 'yes';
break;
}
}
}
return $within_array;
}
print_r(is_in_array($yourarray, 'hide', '1'));
I suppose you want the item with the greatest ID :
// get only the items with 'hide' = 1
$hidden = array_filter($array, function($item){return $item['hide'] == 1;});
// order the array to have the items with the greatest ID first
usort($hidden, function($a, $b){
return $b['id'] - $a['id'] ;
});
// print the item with the max id
print_r($hidden[0]);
for($i = 0; $i<count($array); $i++){
if($array[$i] == 4){
print_r($array[4]);
}
}
This question already has answers here:
Php recursive array counting
(7 answers)
Closed 4 months ago.
I try to make recursive function to count elements on array "levels". But can't do that for two hours already. Check example array:
Array (
[0] => Array (
[0] => Array (
[0] => Array ( )
[1] => Array ( )
)
[1] => Array ( )
)
[1] => Array (
[0] => Array (
[0] => Array (
[0] => Array ( )
[1] => Array ( )
)
)
)
)
The resulting array that count elements on different levels will be:
Array ([0] => 2, [1] => 3, [2] => 3, [3] => 2)
I made function for count total array elements, but no idea how to count each "level"
function countTotalArr($arr, $lvl) {
if ($lvl != 0) $cnt = 1;
else $cnt = 0; // don't count zero level
for ($i = 0; $i < count($arr); $i++)
$cnt += countArr($arr[$i], $lvl + 1);
return $cnt;
}
$total = countTotalArr($referralsCount, 0);
Another solution using while:
// $array is your array at the beginning of iteration
$depthMap = [];
$currentDepth = 0;
while(true) {
$depthMap[$currentDepth] = count($array);
$carry = [];
foreach($array as $item) {
if(is_array($item)) {
$carry = array_merge($carry, $item);
}
}
if(count($carry) < 1) {
break;
}
$array = $carry;
$currentDepth++;
}
Try this code:
<?php
$array = Array (
0 => Array (
0 => Array (
0 => Array ( ) ,
1 => Array ( ) ,
) ,
1 => Array ( ) ,
) ,
1 => Array (
0 => Array (
0 => Array (
0 => Array ( ),
1 => Array ( ),
),
),
) ,
);
function countTotalArr($arr, $lvl)
{
$result = array();
$countOnLevel = count($arr);
$result[$lvl] = $countOnLevel;
$tempArray = array();
foreach($arr as $index => $singleArray)
{
foreach($singleArray as $singleSubArray)
if(is_array($singleSubArray))
$tempArray[] = $singleSubArray;
}
if(!empty($tempArray))
{
$levelTemp = $lvl + 1;
$result = array_merge($result, countTotalArr($tempArray, $levelTemp));
}
return $result;
}
$total = countTotalArr($array, 0);
echo '<pre>';
print_r($total);
Result of print_r($total) is:
Array
(
[0] => 2
[1] => 3
[2] => 3
[3] => 2
)
Here is the raw data
Array
(
[name] => me
[tickets] => Array
(
[1] => Array
(
[equipment] => Array
(
[1] => Array
(
[name] => DVR
[received] => 10
)
[2] => Array
(
[name] => DCT
[received] => 3
)
)
)
[2] => Array
(
[equipment] => Array
(
[1] => Array
(
[name] => DVR
[received] => 4
)
[2] => Array
(
[name] => DCT
[received] => 6
)
)
)
)
)
Users have multiple tickets, but each ticket has the same item with different 'received' amounts. I would like to sum the received amount into one variable/array.
Here is a demo of how I would like to get it to work like
Array
(
[name] => me
[equipment] => Array
(
[DVR] => 14
[DCT] => 9
)
)
Here is my most recent failed attempt at building my own array from a multidimensional array.
foreach($data as $user){
$sum = [];
$sum['name'] = $user->name;
$sum['equipment'] = [];
foreach($user->tickets as $ticket){
foreach($ticket->equipments as $eqpt){
$sum['equipment'][$eqpt['name']] += $eqpt['pivot']['received'];
}
}
print_r($sum);
}
Please try the following code. There's only a single user in your $data, though, so you need to do $data = [$data]; first.
foreach ($data as $user) {
$sum = [];
$sum['name'] = $user['name'];
$sum['equipment'] = [];
foreach($user['tickets'] as $ticket){
foreach($ticket['equipment'] as $eqpt){
$sum['equipment'][$eqpt['name']] += $eqpt['received'];
}
}
print_r($sum);
}
PHP arrays are accessed with square bracket syntax
There's probably a typo in $ticket->equipments.
Try with this:
$array = $data; //$data is your array
$sum = array('name' => $array['name'], 'equipment' => array());
foreach($array['tickets'] as $row) {
for($i = 0; $i < count($row); $i++) {
foreach($row['equipment'] as $infos) {
$sum['equipment'][$infos['name']] += $infos['received'];
//print_r($infos);
}
}
}
print_r($sum);
well, after much googling and trial and error this appears to work
$sum = [];
// $data is a collection returned by Laravel
// I am converting it to an array
foreach($data->toArray() as $user){
$items = [];
foreach($user['tickets'] as $ticket){
foreach($ticket['equipments'] as $eqpt){
$name = $eqpt['name'];
if (! isset($items[$name]))
{
$items[$name] = $eqpt['received'];
} else {
$items[$name] += $eqpt['received'];
}
}
}
$sum[] = [
'name' => $user['name'],
'equipment' => $items
];
}
#tsnorri #Adrian Cid Almaguer
Having some difficulty trying to do this. I'm fetching an array of all submissions, and they are being returned in an array like this:
Array
(
[0] => Array
(
[Submission] => Array
(
[user_id] => 2
[title] => This is a test, only a test
[source] => http://www.testing.com
[slug] => this-is-a-test-only-a-test
[category] => misc
[created] => 2012-10-05 03:43:11
[id] => 110
)
[SubmissionsVote] => Array
(
[0] => Array
(
[id] => 336
[user_id] => 2
[submission_id] => 110
[vote_type] => up
)
)
(
[1] => Array
(
[id] => 337
[user_id] => 4
[submission_id] => 110
[vote_type] => down
)
)
)
)
My intent is to loop through that returned array, and grab all the SubmissionsVote by vote_type == up and vote_type == down.
I then want to calculate a score (this example would return a score of 0 which is just: up - down. With that, I want to put that score into an array and append it to the end of the original one so it'd look like:
Array
(
[0] => Array
(
[Submission] => Array
(
[user_id] => 2
[title] => This is a test, only a test
[source] => http://www.testing.com
[slug] => this-is-a-test-only-a-test
[category] => misc
[created] => 2012-10-05 03:43:11
[id] => 110
)
[SubmissionsVote] => Array
(
[0] => Array
(
[id] => 336
[user_id] => 2
[submission_id] => 110
[vote_type] => up
)
)
(
[1] => Array
(
[id] => 337
[user_id] => 4
[submission_id] => 110
[vote_type] => down
)
)
[SubmissionScore] => Array
(
[0] => 0
)
)
)
Here is what I am doing unsuccessfully:
$votes = array();
$totalScore = array();
foreach ($submissions as $submission) {
$vote = $submission['SubmissionsVote'];
array_push($votes, $vote);
}
for ($i = 0; $i < count($votes); $i++) {
$downVotes = 0;
$upVotes = 0;
if ($votes[$i]['vote_type'] == 'down') {
$downVotes += 1;
} else if ($votes[$i]['vote_type'] == 'up') {
$upVotes += 1;
}
$score = $upVotes - $downVotes;
$totalScore = array_push($totalScore, $score);
}
Would love to get a little push in the right direction here.
Try this one:
$newSubmissions = array();
foreach ($submissions as $submission) {
$SubmissionsVote = $submission['SubmissionsVote'];
foreach($SubmissionsVote as $votes) {
$score = 0;
if ($votes['vote_type'] == 'down') {
$score -= 1;
} else if ($votes['vote_type'] == 'up') {
$score += 1;
}
$submission['SubmissionScore'] = array($score);
}
$newSubmissions[] = $submission;
}
$submissions = $newSubmissions;
I see at least two errors in your code :
You never set SubmissionScore in your array to $totalScore value.
Even if you add a $votes[$i]['SubmissionScore'] = $totalScore, that will not work, in PHP only object are passed by reference so $votes will only contain copy.
There are multiple possibility to resolve the problem but a reference in the foreach is a good choice :
foreach ($submissions as &$submission) {
$totalScore = 0;
foreach ($submission['SubmissionsVote'] as $vote) {
if ($vote['vote_type'] == 'down') {
$totalScore--;
} else if ($vote['vote_type'] == 'up') {
$totalScore++;
}
}
$submission['SubmissionScore'] = $totalScore;
}
Each submission will now have a SubmissionScore based on up/down vote.
You are initializing $downVotes and $upVotes inside a loop, that means you override values each time you iterate through the array.
Anyway, you could simplify this.
foreach ($submissions as $index => $submission) {
$up = 0;
$down = 0;
foreach ($submission['SubmissionsVote'] as $vote) {
if ($vote['vote_type'] == 'up') {
$up++;
} else {
$down++;
}
}
$submissions[$index]['SubmissionScore'] = $up - $down;
}
I use a function called count_days($date1,$date2) that counts the number of days between two dates. But, my question is: the dates come from the DB, in an array like:
Array (
[imac] => Array (
[0] => 2002-10-10
[1] => 2003-11-22
[3] => 2004-11-10
)
[iphone] => Array (
[0] => 2007-09-11
[1] => 2008-05-12
[2] => 2009-06-14
[3] => 2010-06-05
)
)
As you can see the products may have a different number of subarrays. I want to count the days between the first and the next date (and so on!) and then get the average of days.
The DateInterval class is great for this kind of date arithmetic. You can use DateTime::add, DateTime::subtract and DateTime::diff to work with them.
<?php
$types = array(
'imac' => array ('2002-10-10', '2003-11-22', '2004-11-10'),
'iphone' => array ( '2007-09-11', '2008-05-12', '2009-06-14', '2010-06-05'),
);
$typeIntervals = array();
$typeAverage = array();
foreach ($types as $type=>$dates) {
$last = null;
$typeIntervals[$type] = array();
foreach ($dates as $date) {
$current = new DateTime($date);
if ($last) {
$interval = $current->diff($last);
$typeIntervals[$type][] = $interval->days;
}
$last = $current;
}
$typeAverage[$type] = array_sum($typeIntervals[$type]) / count($typeIntervals[$type]);
}
print_r(typeIntervals);
print_r($typeAverage);
This will output:
Array (
[imac] => Array (
[0] => 408
[1] => 354
)
[iphone] => Array (
[0] => 244
[1] => 398
[2] => 356
)
)
Array (
[imac] => 381
[iphone] => 332.66666666667
)
try smth like this ( not tested )
$lastDate = $dbArray[0][0];
$daysArray = array();
foreach ( $dbArray as $value )
{
if ( is_array($value) )
{
foreach ( $value as $v )
{
$daysArray[] = count_days($lastDate, $v);
$lastDate = $v;
}
} else {
//not an array check if it's a date and test it here
}
}
$average = array_sum($daysArray)/count($daysArray);