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thinkphp/library/think/view/driver/Php.php

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+<?php
+// +----------------------------------------------------------------------
+// | ThinkPHP [ WE CAN DO IT JUST THINK ]
+// +----------------------------------------------------------------------
+// | Copyright (c) 2006~2017 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 $config = [
+        // 视图基础目录（集中式）
+        'view_base'   => '',
+        // 模板起始路径
+        'view_path'   => '',
+        // 模板文件后缀
+        'view_suffix' => 'php',
+        // 模板文件名分隔符
+        'view_depr'   => DS,
+    ];
+
+    public function __construct($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, $template);
+        }
+        // 记录视图信息
+        App::$debug && Log::record('[ VIEW ] ' . $template . ' [ ' . var_export(array_keys($data), true) . ' ]', 'info');
+        if (isset($data['template'])) {
+            $__template__ = $template;
+            extract($data, EXTR_OVERWRITE);
+            include $__template__;
+        } else {
+            extract($data, EXTR_OVERWRITE);
+            include $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, $data = [])
+    {
+        if (isset($data['content'])) {
+            $__content__ = $content;
+            extract($data, EXTR_OVERWRITE);
+            eval('?>' . $__content__);
+        } else {
+            extract($data, EXTR_OVERWRITE);
+            eval('?>' . $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 . $request->action();
+                } elseif (false === strpos($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;
+        }
+    }
+
+}