循环通过两个数组并显示值一次

Question

我正在循环两个数组(健身房和游戏)，并比较$体操的‘id’值和$游戏‘健身房_id’。如果两个值匹配，我将显示游戏日期和时间，如下所示。

<?php
$gyms = sw::shared()->gyms->getAll();
$games = sw::shared()->games->getAll();
?>

<?php foreach ($gyms as $gym) { ?>
    <?php foreach ($games as $game) { ?>
        <?php if ($game['gym_id'] == $gym['id']) { ?>
            <?php $match++; ?>
            <?php echo $gym['gym_name']; ?><br>
            <?php echo $game['date']; ?> <?php echo $game['time']; ?><br>
        <?php } ?>
    <?php } ?>
<?php } ?>

我也在用$健身房的名字显示健身房的名字，但是我只想让健身房的名字显示一次，如果那个健身房有游戏的话，这意味着它应该是这样的：

GYM 1 NAME
GAME 1 DATE GAME 1 TIME
GAME 2 DATE GAME 2 TIME
GAME 3 DATE GAME 3 TIME

GYM 2 NAME
GAME 4 DATE GAME 4 TIME
GAME 5 DATE GAME 5 TIME
GAME 6 DATE GAME 6 TIME

我该怎么重写这个？

Answer 1

试试这样的东西。

<?php
$gyms = sw::shared()->gyms->getAll();
$games = sw::shared()->games->getAll();

function getGymGames($gym){
    $gymGames = array();
    foreach ($games as $game) {
        if ($game['gym_id'] == $gym['id']) {
            array_push($gymGames,$game);
        }
    }

    return $gymGames;
}

?>

<?php
    foreach ($gyms as $gym) {
        $gymGames = getGymGames($gym);
        if(count($gymGames) > 0){?>
            <?=$gym['gym_name'];?><br />
            <?foreach($gymGames as $game){
            $match++;
            ?>
            <?= $game['date']; ?><br />
            <?= $game['time']; ?><br>
            <?}
        }
    }
?>

Answer 2

我对PHP并不完全熟悉，但是为什么不做布尔值来标记它是否已经显示，并在显示之后切换它。

<?php
$gyms = sw::shared()->gyms->getAll();
$games = sw::shared()->games->getAll();
?>

<?php foreach ($gyms as $gym) { ?>
 <?php $notDisplayed=true; ?>
<?php foreach ($games as $game) { ?>
    <?php if ($game['gym_id'] == $gym['id']) { ?>
        <?php $match++; ?>
         <?php if($displayed) { ?> 
          <?php echo $gym['gym_name']; ?><br>
          <?php $notDisplayed=false;?>
        <?php } ?>
        <?php echo $game['date']; ?> <?php echo $game['time']; ?><br>
    <?php } ?>
<?php } ?>