thinkphp/library/think/debug/Html.php

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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

namespace think\debug;

use think\Cache;
use think\Config;
use think\Db;
use think\Debug;
use think\Request;
use think\Response;

/**
 * 页面Trace调试
 */
class Html
{
    protected $config = [
        'trace_file' => '',
        'trace_tabs' => ['base' => '基本', 'file' => '文件', 'info' => '流程', 'notice|error' => '错误', 'sql' => 'SQL', 'debug|log' => '调试'],
    ];

    // 实例化并传入参数
    public function __construct(array $config = [])
    {
        $this->config['trace_file'] = THINK_PATH . 'tpl/page_trace.tpl';
        $this->config               = array_merge($this->config, $config);
    }

    /**
     * 调试输出接口
     * @access public
     * @param Response  $response Response对象
     * @param array     $log 日志信息
     * @return bool
     */
    public function output(Response $response, array $log = [])
    {
        $request     = Request::instance();
        $contentType = $response->getHeader('Content-Type');
        $accept      = $request->header('accept');
        if (strpos($accept, 'application/json') === 0 || $request->isAjax()) {
            return false;
        } elseif (!empty($contentType) && strpos($contentType, 'html') === false) {
            return false;
        }
        // 获取基本信息
        $runtime = number_format(microtime(true) - THINK_START_TIME, 10, '.', '');
        $reqs    = $runtime > 0 ? number_format(1 / $runtime, 2) : '∞';
        $mem     = number_format((memory_get_usage() - THINK_START_MEM) / 1024, 2);

        // 页面Trace信息