https://www.workerman.net/doc/workerman/appendices/kernel-optimization.html

php查詢服務器CPU核心數量：

function getCpuCores() {
if (is_file('/proc/cpuinfo')) {
$cpuinfo = file_get_contents('/proc/cpuinfo');
preg_match_all('/^processor/m', $cpuinfo, $matches);
return count($matches[0]);
}
return 1; // 默認返回 1 個核心
}

echo "CPU 核心數量: " . getCpuCores();