Solved array - Only variables should be passed by reference

Spoiler: console log

15:08:48 [CRITICAL] Could not execute task Annihilation\Arena\ArenaSchedule: Only variables should be passed by reference
15:08:48 [NOTICE] RuntimeException: "Only variables should be passed by reference" (E_STRICT) in "/plugins/Annihilation/src/Annihilation/Arena/Arena" at line 475

my code:

PHP:

public function selectMap(){
        $stats = $this->votingManager->currentTable['stats'];
        $map = $this->votingManager->currentTable[array_pop(sort($stats))]; //bad line
        $this->map = $map;
        $this->data = $this->plugin->maps[$map];
        foreach($this->arenateams->getAllPlayers() as $p){
            $p->sendTip(TextFormat::BOLD.TextFormat::YELLOW.$map.TextFormat::GOLD." was chosen");
        }
        $this->worldManager->addWorld($map);
    }


can you help me? i have never seen this error.

The "sort" function doesn't make any type of return, it directly modify the array variable, so your code may look like:

PHP:

public function selectMap(){
        $stats = $this->votingManager->currentTable['stats'];
         sort($stats) // New fixing line
        $map = $this->votingManager->currentTable[array_pop($stats)]; //Modified bad line
        $this->map = $map;
        $this->data = $this->plugin->maps[$map];
        foreach($this->arenateams->getAllPlayers() as $p){
            $p->sendTip(TextFormat::BOLD.TextFormat::YELLOW.$map.TextFormat::GOLD." was chosen");
        }
        $this->worldManager->addWorld($map);
    }


thx i try it