<?php
ini_set('error_reporting', E_ALL);
ini_set('display_errors', 1);
$arry= array("1"=>"20", "2"=>"20", "3"=>"30", "4"=>"40", "5"=>"20");
$results = array();
foreach($arry as $key=>$value) {
$results[$value][] = $key;
}
var_dump($results);
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- array(3) {
[20]=>
array(3) {
[0]=>
int(1)
[1]=>
int(2)
[2]=>
int(5)
}
[30]=>
array(1) {
[0]=>
int(3)
}
[40]=>
array(1) {
[0]=>
int(4)
}
}
preferences:
280.4 ms | 406 KiB | 456 Q