library\think\view\driver\Php.php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2016 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st
// +----------------------------------------------------------------------
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 $config = [
// 模板起始路径
'view_path' => '',
// 模板文件后缀
'view_suffix' => 'php',
// 模板文件名分隔符
'view_depr' => DS,
];
public function __construct($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;
}
if (strpos($template, '@')) {
list($module, $template) = explode('@', $template);
$path = APP_PATH . $module . DS . 'view' . DS;
} else {
$path = $this->config['view_path'];
}
// 分析模板文件规则
$request = Request::instance();
$controller = Loader::parseName($request->controller());
if ($controller && 0 !== strpos($template, '/')) {
$depr = $this->config['view_depr'];
$template = str_replace(['/', ':'], $depr, $template);
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;
}
}
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;
}
}
}