easyswoole框架使用模板直接使用模板引擎,是会有问题的,所以增加了渲染驱动
渲染驱动
EasySwoole引入模板渲染驱动的形式，把需要渲染的数据，通过协程客户端投递到自定义的同步进程中进行渲染并返回结果。为何要如此处理，原因在于，市面上的一些模板引擎在Swoole协程下存在变量安全问题。例如以下流程：
- request A reached, static A assign requestA-data
- compiled template
- write compiled template (yiled current coroutine)
- request B reached，static A assign requestB-data
- render static A data into complied template file 以上流程我们可以发现，A请求的数据，被B给污染了。为了解决该问题，EasySwoole引入模板渲染驱动模式。
安装
代码语言：javascript复制composer require easyswoole/template实现渲染引擎
代码语言：javascript复制use EasySwooleTemplateConfig;
use EasySwooleTemplateRender;
use EasySwooleTemplateRenderInterface;
class R implements RenderInterface{
public function render(string $template, array $data = [], array $options = []):?string
{
return 'asas';
}
public function afterRender(?string $result, string $template, array $data = [], array $options = [])
{
// TODO: Implement afterRender() method.
}
public function onException(Throwable $throwable):string
{
return $throwable->getMessage();
}
}在http中调用:
代码语言：javascript复制//在全局的主服务中创建事件中，实例化该Render,并注入你的驱动配置
Render::getInstance()->getConfig()>setRender(new R());
$http = new swoole_http_server("0.0.0.0", 9501);
$http->on("request", function ($request, $response)use($render) {
//调用渲染器，此时会通过携程客户端，把数据发往自定义的同步进程中处理，并得到渲染结果
$response->end(Render::getInstance()->render('a.html'));
});
$render->attachServer($http);$http->start();Smarty 渲染
引入:
代码语言：javascript复制composer require smarty/smarty实现渲染引擎
代码语言：javascript复制实现渲染引擎
use EasySwooleTemplateRenderInterface;use EasySwooleTemplateRenderInterface;
class Smarty implements RenderInterface{
private $smarty;
function __construct()
{
$temp = sys_get_temp_dir();
$this->smarty = new Smarty();
$this->smarty->setTemplateDir(__DIR__.'/');
$this->smarty->setCacheDir("{$temp}/smarty/cache/");
$this->smarty->setCompileDir("{$temp}/smarty/compile/");
}
public function render(string $template, array $data = [], array $options = []): ?string {
foreach ($data as $key => $item){
$this->smarty->assign($key,$item);
}
return $this->smarty->fetch($template,$cache_id = null, $compile_id = null, $parent = null, $display = false,
$merge_tpl_vars = true, $no_output_filter = false);
}
public function afterRender(?string $result, string $template, array $data = [], array $options = [])
{
}
public function onException(Throwable $throwable): string {
$msg = "{$throwable->getMessage()} at file:{$throwable->getFile()} line:{$throwable->getLine()}";
trigger_error($msg);
return $msg;
}
}在http中调用smarty:
代码语言：javascript复制//在全局的主服务中创建事件中，实例化该Render,并注入你的驱动配置
Render::getInstance()->getConfig()>setRender(new Smarty());
Render::getInstance()->getConfig()->setTempDir(EASYSWOOLE_TEMP_DIR);
Render::getInstance()->attachServer(ServerManager::getInstance()->getSwooleServer());
//在控制器action中实现响应
Render::getInstance()->render('a.html');本文转自 www.easyswoole.com 官方文档
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