判断是否在swoole环境下

/**
 * 判断是否在swoole环境下 
 *
 * @return boolean
 */
function isSwoole(){
    return (key_exists('SERVER',$_SERVER) && stripos($_SERVER['SERVER'],'swoole') !== false || stripos($_SERVER['SCRIPT_FILENAME'], 'bin/laravels') !== false);
}
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