Laravel nested array sorting by first value - php

Question

while developing Laravel app I stuck on one problem with array sorting. At the beginning, I used partition problem to split my array into equal chunks by time, but now I have a problem sorting by the id of the array.
My array:
array(2) {
[0]=>
array(3) {
[0]=>
array(8) {
[0]=>
int(4) <----- this is value i need to sort by
[1]=>
int(15)
[2]=>
string(64) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
[1]=>
array(8) {
[0]=>
int(6)
[1]=>
int(10)
[2]=>
string(64) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
[2]=>
array(8) {
[0]=>
int(2)
[1]=>
int(8)
[2]=>
string(85) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
}
[1]=>
array(3) {
[0]=>
array(8) {
[0]=>
int(3)
[1]=>
int(14)
[2]=>
string(158) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
[1]=>
array(8) {
[0]=>
int(5)
[1]=>
int(12)
[2]=>
string(158) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
[2]=>
array(8) {
[0]=>
int(1)
[1]=>
int(7)
[2]=>
string(55) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
}
}
I need to sort by the first value of each array, so called my id.
Output I need:
array(2) {
[0]=>
array(3) {
[0]=>
array(8) {
[0]=>
int(1)
[1]=>
int(15)
[2]=>
string(64) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
[1]=>
array(8) {
[0]=>
int(2)
[1]=>
int(10)
[2]=>
string(64) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
[2]=>
array(8) {
[0]=>
int(3)
[1]=>
int(8)
[2]=>
string(85) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
}
[1]=>
array(3) {
[0]=>
array(8) {
[0]=>
int(4)
[1]=>
int(14)
[2]=>
string(158) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
[1]=>
array(8) {
[0]=>
int(5)
[1]=>
int(12)
[2]=>
string(158) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
[2]=>
array(8) {
[0]=>
int(6)
[1]=>
int(7)
[2]=>
string(55) "text..."
[3]=>
string(6) "650008"
[4]=>
string(13) "NP08KDT"
[5]=>
int(48)
[6]=>
string(6) "456467"
[7]=>
int(33)
}
}
}
maybe any of you guys have any solutions how i could solve this problem, so far i tried a lot of sorting functions, none of them seems to work properly for me.
Thank you!

Answer 1

this may not be the best way to do this, but you can try something like this.
$tempArray = array();
$sortedArray = array();
foreach ($yourArray as $key1 => $arr){// create 2D array
foreach ($arr as $key2 => $arr2){
$tempArray[] = $arr2;
}
}
foreach ($tempArray as $keyTemp => $tempElem){
$sortingArray[] = $tempElem[0];//get array value you need to sort
}
asort($sortingArray);// sort array maintaining the key
foreach ($sortingArray as $keySort => $sortElem){//loop through sorted array to push elements to a new array
$sortedArray[] = $tempArray[$keySort];
}
print_r($sortedArray);