$template
$template
PHP原生模板驱动
<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2021 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
declare (strict_types = 1);
namespace think\view\driver;
use RuntimeException;
use think\App;
use think\contract\TemplateHandlerInterface;
use think\helper\Str;
/**
* PHP原生模板驱动
*/
class Php implements TemplateHandlerInterface
{
protected $template;
protected $content;
protected $app;
// 模板引擎参数
protected $config = [
// 默认模板渲染规则 1 解析为小写+下划线 2 全部转换小写 3 保持操作方法
'auto_rule' => 1,
// 视图目录名
'view_dir_name' => 'view',
// 应用模板路径
'view_path' => '',
// 模板文件后缀
'view_suffix' => 'php',
// 模板文件名分隔符
'view_depr' => DIRECTORY_SEPARATOR,
];
public function __construct(App $app, array $config = [])
{
$this->app = $app;
$this->config = array_merge($this->config, (array) $config);
}
/**
* 检测是否存在模板文件
* @access public
* @param string $template 模板文件或者模板规则
* @return bool
*/
public function exists(string $template): bool
{
if ('' == pathinfo($template, PATHINFO_EXTENSION)) {
// 获取模板文件名
$template = $this->parseTemplate($template);
}
return is_file($template);
}
/**
* 渲染模板文件
* @access public
* @param string $template 模板文件
* @param array $data 模板变量
* @return void
*/
public function fetch(string $template, array $data = []): void
{
if ('' == pathinfo($template, PATHINFO_EXTENSION)) {
// 获取模板文件名
$template = $this->parseTemplate($template);
}
// 模板不存在 抛出异常
if (!is_file($template)) {
throw new RuntimeException('template not exists:' . $template);
}
$this->template = $template;
extract($data, EXTR_OVERWRITE);
include $this->template;
}
/**
* 渲染模板内容
* @access public
* @param string $content 模板内容
* @param array $data 模板变量
* @return void
*/
public function display(string $content, array $data = []): void
{
$this->content = $content;
extract($data, EXTR_OVERWRITE);
eval('?>' . $this->content);
}
/**
* 自动定位模板文件
* @access private
* @param string $template 模板文件规则
* @return string
*/
private function parseTemplate(string $template): string
{
$request = $this->app->request;
// 获取视图根目录
if (strpos($template, '@')) {
// 跨应用调用
[$app, $template] = explode('@', $template);
}
if ($this->config['view_path'] && !isset($app)) {
$path = $this->config['view_path'];
} else {
$appName = isset($app) ? $app : $this->app->http->getName();
$view = $this->config['view_dir_name'];
if (is_dir($this->app->getAppPath() . $view)) {
$path = isset($app) ? $this->app->getBasePath() . ($appName ? $appName . DIRECTORY_SEPARATOR : '') . $view . DIRECTORY_SEPARATOR : $this->app->getAppPath() . $view . DIRECTORY_SEPARATOR;
} else {
$path = $this->app->getRootPath() . $view . DIRECTORY_SEPARATOR . ($appName ? $appName . DIRECTORY_SEPARATOR : '');
}
}
$depr = $this->config['view_depr'];
if (0 !== strpos($template, '/')) {
$template = str_replace(['/', ':'], $depr, $template);
$controller = $request->controller();
if (strpos($controller, '.')) {
$pos = strrpos($controller, '.');
$controller = substr($controller, 0, $pos) . '.' . Str::snake(substr($controller, $pos + 1));
} else {
$controller = Str::snake($controller);
}
if ($controller) {
if ('' == $template) {
// 如果模板文件名为空 按照默认规则定位
if (2 == $this->config['auto_rule']) {
$template = $request->action(true);
} elseif (3 == $this->config['auto_rule']) {
$template = $request->action();
} else {
$template = Str::snake($request->action());
}
$template = str_replace('.', DIRECTORY_SEPARATOR, $controller) . $depr . $template;
} elseif (false === strpos($template, $depr)) {
$template = str_replace('.', DIRECTORY_SEPARATOR, $controller) . $depr . $template;
}
}
} else {
$template = str_replace(['/', ':'], $depr, substr($template, 1));
}
return $path . ltrim($template, '/') . '.' . ltrim($this->config['view_suffix'], '.');
}
/**
* 配置模板引擎
* @access private
* @param array $config 参数
* @return void
*/
public function config(array $config): void
{
$this->config = array_merge($this->config, $config);
}
/**
* 获取模板引擎配置
* @access public
* @param string $name 参数名
* @return mixed
*/
public function getConfig(string $name)
{
return $this->config[$name] ?? null;
}
}