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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace think\view\driver;
use think\App;
use think\exception\TemplateNotFoundException;
use think\Loader;
use think\Log;
use think\Request;
class Php
{
// 模板引擎参数
protected $config = [
// 视图基础目录(集中式)
'view_base' => '',
// 模板起始路径
'view_path' => '',
// 模板文件后缀
'view_suffix' => 'php',
// 模板文件名分隔符
'view_depr' => DS,
// 默认模板渲染规则 1 解析为小写+下划线 2 全部转换小写
'auto_rule' => 1,
];
protected $template;
protected $content;
public function __construct($config = [])
{
$this->config = array_merge($this->config, $config);
}
/**
* 检测是否存在模板文件
* @access public
* @param string $template 模板文件或者模板规则
* @return bool
*/
public function exists($template)
{
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 $data 模板变量
* @return void
*/
public function fetch($template, $data = [])
{
if ('' == pathinfo($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 TemplateNotFoundException('template not exists:' . $template, $template);
}
$this->template = $template;
// 记录视图信息
App::$debug && Log::record('[ VIEW ] ' . $template . ' [ ' . var_export(array_keys($data), true) . ' ]', 'info');
extract($data, EXTR_OVERWRITE);
include $this->template;
}
/**
* 渲染模板内容
* @access public
* @param string $content 模板内容
* @param array $data 模板变量
* @return void
*/
public function display($content, $data = [])
{
$this->content = $content;
extract($data, EXTR_OVERWRITE);
eval('?>' . $this->content);
}
/**
* 自动定位模板文件
* @access private
* @param string $template 模板文件规则
* @return string
*/
private function parseTemplate($template)
{
if (empty($this->config['view_path'])) {
$this->config['view_path'] = App::$modulePath . 'view' . DS;
}
$request = Request::instance();
// 获取视图根目录
if (strpos($template, '@')) {
// 跨模块调用
list($module, $template) = explode('@', $template);
}
if ($this->config['view_base']) {
// 基础视图目录
$module = isset($module) ? $module : $request->module();
$path = $this->config['view_base'] . ($module ? $module . DS : '');
} else {
$path = isset($module) ? APP_PATH . $module . DS . 'view' . DS : $this->config['view_path'];
}
$depr = $this->config['view_depr'];
if (0 !== strpos($template, '/')) {
$template = str_replace(['/', ':'], $depr, $template);
$controller = Loader::parseName($request->controller());
if ($controller) {
if ('' == $template) {
// 如果模板文件名为空 按照默认规则定位
$template = str_replace('.', DS, $controller) . $depr . (1 == $this->config['auto_rule'] ? Loader::parseName($request->action(true)) : $request->action());
} elseif (false === strpos($template, $depr)) {
$template = str_replace('.', DS, $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 string|array $name 参数名
* @param mixed $value 参数值
* @return void
*/
public function config($name, $value = null)
{
if (is_array($name)) {
$this->config = array_merge($this->config, $name);
} elseif (is_null($value)) {
return isset($this->config[$name]) ? $this->config[$name] : null;
} else {
$this->config[$name] = $value;
}
}
}