如何使用PHP从JSON数组中获取最多5组数据

$json = '[{"name":"John","age":30},{"name":"Jane","age":25},{"name":"Bob","age":35},{"name":"Alice","age":28},{"name":"Tom","age":32},{"name":"Linda","age":29}]';
$data = json_decode($json, true);

$maxResults = 5;
$results = [];

foreach ($data as $item) {
    if (count($results) >= $maxResults) {
        break;
    }
    
    $results[] = $item;
}

// 输出结果
print_r($results);

$maxResults = 5;
$results = [];

foreach ($data as $item) {
    if (count($results) >= $maxResults) {
        break;
    }
    
    if ($item['age'] >= 30) {
        $results[] = $item;
    }
}

// 输出结果
print_r($results);