i have an array of arrays like this one
array(4) {
[0] => array(2) {
["option"] => string(5) "64310"
["choice"] => string(6) "221577"
}
[1] => array(2) {
["option"] => string(5) "64310"
["choice"] => string(6) "221578"
}
[2] => array(2) {
["option"] => string(5) "64305"
["choice"] => string(6) "221538"
}
}
i want to obtain a result like this one
array(2) {
[0] => array(2) {
["option"] => string(5) "64310"
["choices"] => array(2){
["choice"] => string(6) "221577"
["choice"] => string(6) "221578"
}
}
}
how can i proceed, thank you in advance
Something like this will help you achieve the desired result;
<?php
$data = [
[
'option' => '64310',
'choice' => '221577'
],
[
'option' => '64310',
'choice' => '221578'
],
[
'option' => '64305',
'choice' => '221538'
]
];
$res = [];
foreach($data as $d) {
// Check if we've already got this option
// Note the '&' --> Check link below
foreach($res as &$r) {
if (isset($r['option']) && $r['option'] === $d['option']) {
// Add to 'choices'
$r['choices'][] = $d['choice'];
// Skip the rest of both foreach statements
continue 2;
}
}
// Not found, create
$res[] = [
'option' => $d['option'],
'choices' => [ $d['choice'] ],
];
};
print_r($res);
& --> PHP "&" operator
Array
(
[0] => Array
(
[option] => 64310
[choices] => Array
(
[0] => 221577
[1] => 221578
)
)
[1] => Array
(
[option] => 64305
[choices] => Array
(
[0] => 221538
)
)
)
Try online!
Related
Here I have 2 array. One which provides sequence that is SortedArray and second that provides only data MyArrayUnsorted
I have SortedArray as a sequence that i need to print my data that is available in MyArrayUnsorted.
Remember the values are dynamic.
SortedArray
(
[0] => 8500
[1] => 8501
[2] => 8503
[3] => 8502
)
MyArrayUnsorted
(
[0] => array(
myid= '8500'
)
[1] => array(
myid= '8501'
)
[2] => array(
myid= '8502'
)
[3] => array(
myid= '8503'
)
)
FinalSortedArray
(
[0] => array(
myid= '8500'
)
[1] => array(
myid= '8501'
)
[2] => array(
myid= '8503'
)
[3] => array(
myid= '8502'
)
)
It looks pretty straightforward, you just need to array_flip the sorted array and usort the unsorted one.
<?php
declare(strict_types=1);
$sortedArray = [
'8500',
'8501',
'8503',
'8502',
];
$myArrayUnsorted = [
[
'myid' => '8500',
],
[
'myid' => '8501',
],
[
'myid' => '8502',
],
[
'myid' => '8503',
],
];
$flippedArray = array_flip($sortedArray);
usort($myArrayUnsorted, static function ($a, $b) use ($flippedArray) {
$aIndex = $flippedArray[$a['myid']] ?? null;
$bIndex = $flippedArray[$b['myid']] ?? null;
return $aIndex <=> $bIndex;
});
var_dump($myArrayUnsorted);
It would give the following output.
array(4) {
[0]=>
array(1) {
["myid"]=>
string(4) "8500"
}
[1]=>
array(1) {
["myid"]=>
string(4) "8501"
}
[2]=>
array(1) {
["myid"]=>
string(4) "8503"
}
[3]=>
array(1) {
["myid"]=>
string(4) "8502"
}
}
I have an array
{
Array
(
[0] => Array
(
[filterType] => checkbox
[sfid] => a1d1I000000jrmwQAA
[name] => Publication Year
[specValues] => Array
(
[count] => 3
[value] => 1953
)
)
[1] => Array
(
[filterType] => checkbox
[sfid] => a1d1I000000jrmwQAA
[name] => Publication Year
[specValues] => Array
(
[count] => 1
[value] => 1954
)
)
)
}
But I want to merge array if sfid is same i.e i want result
{
Array
(
[0] => Array
(
[filterType] => checkbox
[sfid] => a1d1I000000jrmwQAA
[name] => Publication Year
[specValues] => Array(
[0] =>array(
[count] => 3
[value] => 1953
)
[1] =>array(
[count] => 1
[value] => 1954
)
)
)
)
}
You just need to iterate your array and add the row to the output if it is not in there already (you can use sfid as keys) and add specValues to the correct row.
<?php
$input = [
[
'filterType' => 'checkbox',
'sfid' => 'a1d1I000000jrmwQAA',
'name' => 'Publication Year',
'specValues' => [
'count' => 3,
'value' => 1953,
],
],
[
'filterType' => 'checkbox',
'sfid' => 'a1d1I000000jrmwQAA',
'name' => 'Publication Year',
'specValues' => [
'count' => 1,
'value' => 1954,
],
],
];
$data = [];
foreach ($input as $row) {
if (!isset($data[$row['sfid']])) {
$data[$row['sfid']] = [
'filterType' => $row['filterType'],
'sfid' => $row['sfid'],
'name' => $row['name'],
'specValues' => [],
];
}
$data[$row['sfid']]['specValues'][] = $row['specValues'];
}
var_dump(array_values($data));
Output:
array(1) {
[0]=>
array(4) {
["filterType"]=>
string(8) "checkbox"
["sfid"]=>
string(18) "a1d1I000000jrmwQAA"
["name"]=>
string(16) "Publication Year"
["specValues"]=>
array(2) {
[0]=>
array(2) {
["count"]=>
int(3)
["value"]=>
int(1953)
}
[1]=>
array(2) {
["count"]=>
int(1)
["value"]=>
int(1954)
}
}
}
}
I assume that if sfid is the same, then also filterType and name is the same.
I have arrays in one submission, please see below details:
array(5) {
["ambition_id"]=>
array(2) {
[55]=> string(2) "55"
[60]=> string(2) "60"
}
["target"]=>
array(1) {
[0]=> string(8) "target 1"
[1]=> string(8) "target 2"
}
["strides"]=>
array(1) {
[0]=> string(1) "1"
[1]=> string(1) "1"
}
["date"]=>
array(1) {
[0]=> string(10) "2017-02-08"
[1]=> string(10) "2017-03-08"
}
["frequency"]=>
array(1) {
[0]=> string(1) "1"
[1]=> string(1) "2"
}
}
Actually, I have two tables in mysql, 'ambition' and 'target'. Ambition is a group of targets ('ambition_id' is foreign key in 'target' table). That array will be stored in 'target' table. That's why there is an 'ambition_id'
I've tried many times but failed (using foreach), now I need someone who can give me a help.
By brute force, It's easy! I solved it already but I need "more advanced" array manipulation.
How can I come up into this?
array(2) {
[0] => array('ambition_id' => 55,
'target' => 'target 1',
'strides' => 1,
'date' => '2017-02-08',
'frequency' => 1
),
[1] => array('ambition_id' => 60,
'target' => 'target 2',
'strides' => 2,
'date' => '2017-03-08',
'frequency' => 2)
}
Please do help, many thanks!
You have to pivot your data:
$data = array (
"ambition_id" =>
array (
55 => "55",
60 => "60"
),
"target" =>
array (
0 => "target 1",
1 => "target 2"
),
"strides" =>
array (
0 => "1",
1 => "1"
),
"date" =>
array (
0 => "2017-02-08",
1 => "2017-03-08"
),
"frequency" =>
array (
0 => "1",
1 => "2"
)
);
// pivot data
$pivot = array();
foreach ($data as $datum => $values) {
$value_index = 0;
foreach ($values as $value) {
$pivot[$value_index][$datum] = $value;
$value_index++;
}
}
print_r($pivot);
This assumes you only have two levels of data and that the data is well behaved.
Not the best answer, but it solves your problem
<?php
$array = [
"ambition_id" =>
[
55 => "55",
60 => "60"
],
"target" =>
[
0 => "target 1",
1 => "target 2"
],
"strides" =>
[
0 => "1",
1 => "1"
],
"date" =>
[
0 => "2017-02-08",
1 => "2017-03-08"
],
"frequency" =>
[
0 => "1",
1 => "2"
],
];
$result = array();
foreach ($array as $k => $v) {
foreach ($v as $kk => $vv) {
if ($k == "ambition_id") {
$result[] = array($k => $vv);
} else {
$result[$kk][$k] = $vv;
}
}
}
Here is the test https://3v4l.org/UdHH8
Just use loop the array and user array_values to re-index the loop the inner array and store it into new array like below .
<?php
$new_array =array();
foreach($array as $key1=>$row1 )
{
$ss =array_values($row1);
foreach($ss as $key2=>$row2)
{
$new_array[$key2][$key1]=$row2;
}
}
echo "<pre>";
print_r($new_array);
?>
Output :
Array
(
[0] => Array
(
[ambition_id] => 55
[target] => target 1
[strides] => 1
[date] => 2017-02-08
[frequency] => 1
)
[1] => Array
(
[ambition_id] => 60
[target] => target 2
[strides] => 1
[date] => 2017-03-08
[frequency] => 2
)
)
I have a Multi-dimensional array
[0] => Array
(
[name] => Size
[value] => XS,S,XL
)
[1] => Array
(
[name] => Brand
[value] => Adidas
)
[2] => Array
(
[name] => Size
[value] => XS,XL,L,M
)
[3] => Array
(
[name] => Brand
[value] => Nike
)
i want result as
[0] => Array
(
[name] => Size
[value] => S,M,L,XS,XL
)
[1] => Array
(
[name] => Brand
[value] => Adidas,Nike
)
I'm trying to array_combine, array_merge and even array_unique with no success
You can try this -
$array = array(
'0' => array
(
'name' => 'Size',
'value' => 'XS,S,XL',
),
'1' => array
(
'name' => 'Brand',
'value' => 'Adidas',
),
'2' => array
(
'name' => 'Size',
'value' => 'XS,XL,L,M',
),
'3' => array
(
'name' => 'Brand',
'value' => 'Nike',
)
);
$temp = $new = array();
foreach($array as $val) {
$temp[$val['name']][] = $val['value'];
}
foreach($temp as $key => $value) {
// merge values, fetch unique, then merge again
$values = implode(',', array_unique(explode(',', implode(',', $value))));
$new[] = array('name' => $key, 'value' => $values); // store
}
var_dump($new);
Output
array(2) {
[0]=>
array(2) {
["name"]=>
string(4) "Size"
["value"]=>
string(11) "XS,S,XL,L,M"
}
[1]=>
array(2) {
["name"]=>
string(5) "Brand"
["value"]=>
string(11) "Adidas,Nike"
}
}
Demo
I have the following output from a PHP array:
Array (
[0] => Array (
[set1] => Array (
[link] => xyz.com/def
[time] => 2016-01-03
[set2] => Array (
[link] =>
[time] => )
[set3] => Array (
[link] =>
[time] => )
)
[1] => Array (
[set1] => Array (
[link] => xyz.com/123
[time] => 2016-01-03)
[set2] => Array (
[link] =>
[time] => )
[set3] => Array (
[link] => xyz.com/123
[time] => 2016-01-03)
)
[2] => Array (
[set1] => Array (
[link] => xyz.com/abc
[time] => 2015-12-03)
[set2] => Array (
[link] => xyz.com/abc
[time] => 2016-01-03)
[set3] => Array (
[link] => xyz.com/123456
[time] => 2016-01-03)
) )
I would like to eliminate duplicate [link] regardless of the [time] - then I would like to eliminate the empty [link] values such as [0][set2], and finally have an output as follows:
[link] => xyz.com/def
[time] => 2016-01-03
[link] => xyz.com/123
[time] => 2016-01-03)
[link] => xyz.com/abc
[time] => 2015-12-03
[link] => xyz.com/123456
[time] => 2016-01-03
This is what I tried:
$categoryUrlArray= array_unique(($categoryUrlArray, SORT_REGULAR);
foreach ($categoryUrlArray as $categoryUrlLevel01) {
$categoryUrlLevel01= array_unique($categoryUrlLevel01, SORT_REGULAR);
foreach ($categoryUrlLevel01 as $categoryUrlLevel02) {
echo $categoryUrlLevel02['link'];
echo '<br/>';
echo $categoryUrlLevel02['time'];
echo '<br/><br/><br/>';
}
}
The problem with the above code is that duplicates are not being eliminated and empty values are still showing i.e. there are plenty of line breaks <br/> - that is why I know they are not being eliminated.
how about just checking inside the inner loop for blanks and duplicates? then save them all inside a new variable. like this
$newArr = array();
$links = array();
foreach($categoryUrlArray as $urls){
foreach($urls as $url){
if(!empty($url['link']) && !in_array($url['link'],$links)){
$newArr[] = $url;
$links[] = $url['link'];
}
}
}
var_dump($newArr);
will result to
array(4) {
[0]=>
array(2) {
["link"]=>
string(11) "xyz.com/def"
["time"]=>
string(10) "2016-01-03"
}
[1]=>
array(2) {
["link"]=>
string(11) "xyz.com/123"
["time"]=>
string(10) "2016-01-03"
}
[2]=>
array(2) {
["link"]=>
string(11) "xyz.com/abc"
["time"]=>
string(10) "2015-12-03"
}
[3]=>
array(2) {
["link"]=>
string(14) "xyz.com/123456"
["time"]=>
string(10) "2016-01-03"
}
}
Just add a condition to check if link is not blank !empty($categoryUrlLevel02['link'])
Below is the modified code:
($categoryUrlArray= array_unique(($categoryUrlArray, SORT_REGULAR);
foreach ($categoryUrlArray as $categoryUrlLevel01) {
$categoryUrlLevel01= array_unique($categoryUrlLevel01, SORT_REGULAR);
foreach ($categoryUrlLevel01 as $categoryUrlLevel02) {
if(!empty($categoryUrlLevel02['link']))
{
echo $categoryUrlLevel02['link'];
echo '<br/>';
echo $categoryUrlLevel02['time'];
echo '<br/><br/><br/>';
}
}
}
Best practice for efficiently identifying unique values in your result array is accomplished by assigning temporary keys in the result array and checking !isset() for the identifying key (which is the link value). If you don't want to see these redundant/temporary keys in your output, call array_values().
*note, making iterated calls of in_array() is certainly more costly in terms of performance versus isset().
Code: (Demo)
$categoryUrlArray = [
[
"set1" => ["link" => "xyz.com/def", "time" => "2016-01-03"],
"set2" => ["link" => "", "time" => ""],
"set3" => ["link" => "", "time" => ""]
],
[
"set1" => ["link" => "xyz.com/123", "time" => "2016-01-03"],
"set2" => ["link" => "", "time" => ""],
"set3" => ["link" => "xyz.com/123", "time" => "2016-01-03"]
],
[
"set1" => ["link" => "xyz.com/abc", "time" => "2016-12-03"],
"set2" => ["link" => "xyz.com/abc", "time" => "2016-01-03"],
"set3" => ["link" => "xyz.com/123456", "time" => "2016-01-03"]
]
];
foreach ($categoryUrlArray as $groups) {
foreach ($groups as $row) {
if ($row["link"] && !isset($result[$row["link"]])) { if "truthy" (not empty) and unique
$result[$row["link"]] = $row;
}
}
}
var_export(array_values($result));
Output:
array (
0 =>
array (
'link' => 'xyz.com/def',
'time' => '2016-01-03',
),
1 =>
array (
'link' => 'xyz.com/123',
'time' => '2016-01-03',
),
2 =>
array (
'link' => 'xyz.com/abc',
'time' => '2016-12-03',
),
3 =>
array (
'link' => 'xyz.com/123456',
'time' => '2016-01-03',
),
)