Recursively remove elements from nested array looking for a specific value

Recursively remove elements from nested array looking for a specific value - php

One problem with your code is that sizeof($locations) changes every time you do a unset. So whenever you have two consecutive [$n][1] having "0,0", you are not able to detect that. Also your code is not looking at just[$n][1], its looking at all indexes in [$n][]
Use the below code:
$count = count($locations);
for ($i = 0; $i < $count; $i++) {
if ($locations[$i][1] == "0,0") {
unset($locations[$index]);
}
}
$locations = array_values($locations);

foreach ($locations as $index => $row) {
if ($locations[$index][1] == "0,0") unset($locations[$index]);
}
$locations = array_values($locations);

Related

Convert string format to LatLng format using PHP

I'm trying to draw polyline in a map, totally new to PHP,I tried already researched previous topic but their format doesn't match to the one I need or using other dev language.
How to convert $polylines_data as string
$polylines_data="9.76716,118.74789000000001,9.76665,118.74787,9.766100000000002,118.74787,9.76609,118.74773,9.76609,118.74745000000001,9.76519,118.74742,9.7644,118.74737,9.76382,118.74734000000001,9.7626,118.74728,9.76125,118.7472,9.760670000000001,118.74719,9.760280000000002,118.74724,9.75932,118.74741000000002,9.75826,118.74757000000001,9.75787,118.74763000000002,9.7575,118.74766000000001,9.757290000000001,118.74765000000001,9.756670000000002,118.74752000000001,9.755870000000002,118.74736000000001,9.75567,118.74732000000002,9.755320000000001,118.74732000000002,9.75441,118.74749000000001,9.753960000000001,118.74759000000002,9.753210000000001,118.74776000000001,9.752730000000001,118.74778,9.752510000000001,118.74777,9.75197,118.74773,9.75145,118.74772000000002,9.750720000000001,118.74776000000001,9.75051,118.74777,9.749300000000002,118.74785000000001,9.749270000000001,118.74863,9.74925,118.74941000000001,9.74914,118.75251000000002,9.747770000000001,118.75248,9.74609,118.75245000000001,9.74606,118.75307000000001,9.746080000000001,118.75314000000002,9.746120000000001,118.75316000000001,9.74624,118.75316000000001";
into this format or set of orders using PHP 👇
[
[-122.483696, 37.833818],
[-122.483482, 37.833174],
[-122.483396, 37.8327],
[-122.483568, 37.832056],
[-122.48404, 37.831141],
[-122.48404, 37.830497],
[-122.483482, 37.82992],
[-122.483568, 37.829548],
[-122.48507, 37.829446],
[-122.4861, 37.828802],
[-122.486958, 37.82931],
[-122.487001, 37.830802],
[-122.487516, 37.831683],
[-122.488031, 37.832158],
[-122.488889, 37.832971],
[-122.489876, 37.832632],
[-122.490434, 37.832937],
[-122.49125, 37.832429],
[-122.491636, 37.832564],
[-122.492237, 37.833378],
[-122.493782, 37.833683]
]
I'm trying to implement it here on client's end, all I need is the format from the backend end using PHP.
map.addSource('route', {
'type': 'geojson',
'data': {
'type': 'Feature',
'properties': {},
'geometry': {
'type': 'LineString',
'coordinates': [
[-122.483696, 37.833818],
[-122.483482, 37.833174],
[-122.483396, 37.8327],
[-122.483568, 37.832056],
[-122.48404, 37.831141],
[-122.48404, 37.830497],
[-122.483482, 37.82992],
[-122.483568, 37.829548],
[-122.48507, 37.829446],
[-122.4861, 37.828802],
[-122.486958, 37.82931],
[-122.487001, 37.830802],
[-122.487516, 37.831683],
[-122.488031, 37.832158],
[-122.488889, 37.832971],
[-122.489876, 37.832632],
[-122.490434, 37.832937],
[-122.49125, 37.832429],
[-122.491636, 37.832564],
[-122.492237, 37.833378],
[-122.493782, 37.833683]
]
}
}
});
Really appreciate if you can help. Thanks in advance. 🙌

php merge duplicate values in a array

I apologize for not being word-perfect in English.
I have this result from a foreach loop in php.
my file is jason.
Merging more value into one array
Array
(
[777565] => Array
(
[0] => Array
(
[0] => 777565-1
[1] => 777565-2
)
[1] => Array
(
[0] => 777565-3
[1] => 777565-4
)
[2] => Array
(
[0] => 777565-5
[1] => 777565-6
)
)
[777566] => Array
(
[0] => Array
(
[0] => 777566-1
[1] => 777566-2
)
[1] => Array
(
[0] => 777566-3
[1] => 777566-4
)
[2] => Array
(
[0] => 777566-5
[1] => 777566-6
)
)
)
but, I want Something like this:
Array
(
[777565] => Array
(
[0] => 777565-1
[1] => 777565-2
[2] => 777565-3
[3] => 777565-4
[4] => 777565-5
[5] => 777565-6
)
[777566] => Array
(
[0] => 777566-1
[1] => 777566-2
[2] => 777566-3
[3] => 777566-4
[4] => 777566-5
[5] => 777566-6
)
)
I tried hard and searched the internet but I could not find any way.
Of course, I have the ability to move it to the database first and then to the array, but I think there should be a faster way. What do you think?
thanks for reply.

If you have no problem looping through it and flatten the array according to your desire then you can try this:
$parent =
Array
(
[777565] => Array
(
[0] => Array
(
[0] => 777565-1
[1] => 777565-2
)
[1] => Array
(
[0] => 777565-3
[1] => 777565-4
)
[2] => Array
(
[0] => 777565-5
[1] => 777565-6
)
)
[777566] => Array
(
[0] => Array
(
[0] => 777566-1
[1] => 777566-2
)
[1] => Array
(
[0] => 777566-3
[1] => 777566-4
)
[2] => Array
(
[0] => 777566-5
[1] => 777566-6
)
)
);
$length = count($parent);
$result=[];
for($i=0; $i<$length; $i++){
for($j=0; $j<3; $j++){
$l=0;
for($k=0; $k<2; $k++){
$result[777565+$i][$j][$l++] = $parent[777565+$i][$j][$k];
}
}
}

i only want to have array without null values (i have used empety(), isset(), is_null); below is my array and code that i have implemented toget array

Below array is formed when i fetch data from xsl sheet
i have used empty(), isset(), is_null but all are not working
bellow is my code
for($i = 0; $i < count($newSheetData); $i++){
if($newSheetData[$i][0] == ''){
unset($newSheetData[$i]);
}else{
//unset($newSheetData[$i]);
}
}
This is my output:
<pre/>Array
(
[0] => Array
(
[0] => quetion
[1] => option1
[2] => option2
)
[1] => Array
(
[0] => What
[1] => a
[2] => b
)
[2] => Array
(
[0] => now
[1] => a
[2] => b
)
[3] => Array
(
[0] => What
[1] => a
[2] => b
)
[4] => Array
(
[0] =>
[1] =>
[2] =>
)
[5] => Array
(
[0] =>
[1] =>
[2] =>
)
[6] => Array
(
[0] =>
[1] =>
[2] =>
)
[7] => Array
(
[0] =>
[1] =>
[2] =>
)
[8] => Array
(
[0] =>
[1] =>
[2] =>
)
[9] => Array
(
[0] =>
[1] =>
[2] =>
)
[10] => Array
(
[0] =>
[1] =>
[2] =>
)
)
)
i want this type of array
Array (
[0] => Array
(
[0] => quetion
[1] => option1
[2] => option2
)
[1] => Array
(
[0] => What
[1] => a
[2] => b
)
[2] => Array
(
[0] => now
[1] => a
[2] => b
)
[3] => Array
(
[0] => What
[1] => a
[2] => b
)

foreach ($newSheetData as $key => $value) {
$dataFiltred = array_filter($value, function($var) {
if ($var === 0 || $var === '0' || !empty($var)) {
return true;
}
return false;
});
if (empty($dataFiltred)) {
unset($newSheetData[$key]);
}
}

echo multidimensional array values into a readable format

If you want this for debugging then output like this:
echo '<pre>';
print_r($visits);
echo '</pre>';
Other ways use array_walk_recursive()

You can use array_walk_recursive() to loop through each value of your array, e.g.
array_walk_recursive($visits, function($v, $k){
echo $v . "<br>";
});

How to sum values via the same key and group by other key

I'd like to sum products by the same ref number, but I have 3rd parameter like dimension e.g. (..., 24, 26mm,...) and I can't sum this values only when they have the same dimension. I tried this: Group a multidimensional array by a particular value? but how to sum values?
My array looks like this:
Array
(
[0] => Array
(
[0] => 2
[1] => 790180X
[2] => 26mm
)
[1] => Array
(
[0] => 4
[1] => 762182Z
)
[2] => Array
(
[0] => 2
[1] => 072182X
)
[3] => Array
(
[0] => 4
[1] => 660122Y
)
[4] => Array
(
[0] => 2
[1] => 790180X
[2] => 24mm
)
[5] => Array
(
[0] => 1
[1] => 225160Y
)
[6] => Array
(
[0] => 1
[1] => 244160Y
)
[7] => Array
(
[0] => 1
[1] => 225160Y
)
[8] => Array
(
[0] => 8
[1] => 954120Y
)
[9] => Array
(
[0] => 3
[1] => 072182X
)
)
I'd like to something like this:
Array
(
[0] => Array
(
[0] => 2
[1] => 790180X
[2] => 26mm
)
[1] => Array
(
[0] => 2
[1] => 790180X
[2] => 24mm
)
[2] => Array
(
[0] => 4
[1] => 762182Z
)
[3] => Array
(
[0] => 5
[1] => 072182X
)
[4] => Array
(
[0] => 4
[1] => 660122Y
)
[5] => Array
(
[0] => 2
[1] => 225160Y
)
[6] => Array
(
[0] => 1
[1] => 244160Y
)
[7] => Array
(
[0] => 8
[1] => 954120Y
)
)
The array in short version:
Array => TO => Array
( (
[0] => 2:790180X:26mm [0] => 2:790180X:26mm
[1] => 4:762182Z [1] => 2:790180X:24mm
[2] => 2:072182X [2] => 4:762182Z
[3] => 4:660122Y [3] => 5:072182X
[4] => 2:790180X:24mm [4] => 4:660122Y
[5] => 1:225160Y [5] => 2:225160Y
[6] => 1:244160Y [6] => 1:244160Y
[7] => 1:225160Y [7] => 8:954120Y
[8] => 8:954120Y )
[9] => 3:072182X
)

Just sum into a new array, using the various "grouping" fields as keys in the new array:
$sums = array();
foreach ($yourarray as $element) {
$sums[$element['dimension1']][$element['dimension2']]++;
}
For every dimension you need to 'group' by, you add a key to the $sums array.

We Keep Coding

PHP, A popular general-purpose scripting language that is especially suited to web development.

Recursively remove elements from nested array looking for a specific value - php

foreach ($locations as $index => $row) { if ($locations[$index][1] == "0,0") unset($locations[$index]); } $locations = array_values($locations);

Related

Convert string format to LatLng format using PHP

php merge duplicate values in a array

i only want to have array without null values (i have used empety(), isset(), is_null); below is my array and code that i have implemented toget array

echo multidimensional array values into a readable format

How to sum values via the same key and group by other key

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