Spt.php

<?php
/**
 * @link https://github.com/inhere/simple-print-tool.git
 * Created by sublime 3.
 * Auth: Inhere
 * Date: 14-11-26
 * Time: 10:35
 * Des : simple-print-tool -- Spt
 * ********************** 常用输出测试方法 **********************
 * @param mixed $inputData
 * Use : 是 √ 否 X
 * +--------------------------------------------------------------------------------------+
 * |     -----        | 是否可打印   | 打印时是否  | 打印后是否   |      补充说明            |
 * |  (方法)函数使用   |  多个参数    |  类型输出   | 会退出程序   |                         |
 * |------------------+-------------+------------+-------------+-------------------------|
 * | d() / Spt::d()    |       √     |     √      |      X      |                         |
 * |------------------|-------- ----|------------|-------------|                         |
 * | de() / Spt::de()  |       √     |     √      |      √      |                         |
 * |------------------|-------- ----|------------|-------------|                         |
 * | p() / Spt::p()    |       √     |     X      |      X      |                         |
 * |------------------|-------- ----|------------|-------------|                         |
 * | pe() / Spt::pe()  |       √     |     X      |      √      |                         |
 * |------------------+-------- ----+------------+-------------+-------------------------|
 * | pr() / Spt::pr()  |       √     |     X      |      X      |  pr()等同于print_r(),    |
 * |------------------|-------- ----|------------|-------------|  但可以传入多个参数       |
 * | vd() / Spt::vd()  |       √     |     √      |      X      |  vd()等同于var_dump()    |
 * +--------------------------------------------------------------------------------------+
 * 若使用了命名空间 类方法调用 需在最前加上'\'。 @example \Spt::d($arg1,$arg2,$arg3,...);
 **/

include_once __DIR__.'/PrintHelper.php';

/**
 * Class Spt
 */
class Spt
{
    const MIN_PHP_VERSION = '5.6';

    /** @var  self */
    private static $instance;

    private static $hasStyle = false; # 标记样式是否已经输出

    /** @var array */
    private static $opts = [
        'disabled' => false,
        'hidden' => false,
        'detectAjax' => false,
        'stripTags' => false,
        'exitKey' => -4,
        'skipKey' => -5,

        'rootPath' => null,

        'controlClass' => 'js-control-showOrHide',
        'jqueryLoc' => '/static/dep/jquery.js',
        'jqueryCdn' => 'http://cdn.staticfile.org/jquery/2.2.1/jquery.min.js',
    ];

    /**
     * 控制数组内容显示隐藏的  class name
     * @var string
     */
    private static $controlClass = 'js-control-showOrHide';

    private static $jqueryLoc = '/static/dep/jquery.js';

    // private static $jqueryCdn   = 'http://libs.useso.com/js/jquery/2.1.0/jquery.min.js';
    private static $jqueryCdn = 'http://cdn.staticfile.org/jquery/2.2.1/jquery.min.js';

    /**
     * $disabled 禁用输出，设置后将不会打印数据。
     * use: 在打印前调用 Spt::disabled(); 页面将不会有任何打印数据输出
     * @var boolean
     */
    private static $disabled = false;

    /**
     * $hidden 是否展开打印数据，默认展开
     * use: 在打印前调用 @see Spt::hidden() 可默认收缩隐藏打印数据
     */
    private static $hidden = false;

    /**
     * $detectAjax 开启侦测Ajax请求 @todo 未完善
     * use: 在打印前调用@see Spt::detectAjax()
     * @var boolean
     */
    private static $detectAjax = false;

    /**
     * @see Spt::stripTags()
     * 是否去除html标签。当 ajax请求 或是 cli(命令环境) 时，无需设置也会自动去除
     * @var bool
     */
    private static $stripTags = false;

    // 标记打印调用后是否退出程序
    private $exit = false;

    // 退出关键字
    // 当打印函数默认不退出，想让其打印后退出时设置 最后一个参数 === $exitKey
    public $exitKey = -4;

    // 不退出，跳出关键字
    // 当打印函数默认退出，想让其打印后不退出(继续执行后续程序)时设置 最后一个参数 === $exitKey
    public $skipKey = -5;

    public $inputData; // 输入数据 TODO unused

    /**
     * 打印位置信息数据
     * @var string
     */
    public $positionData;

    /**
     * 输出数据
     * @var string
     */
    public $outputData;

//    public $numberArg; // 参数个数
//    public $lastArg;   // 传入的最后一个参数

    /**
     * 设置项目根路径，用于打印时安全替换
     * 网络请求时，可以不用设置 会默认设置为 $_SERVER['DOCUMENT_ROOT']
     * 当在 命令行 环境时，需要定义 PROJECT_PATH 来设置 $rootPath
     * @example
     * $rootPath = null; 为空时输出
     *     p() called at F:\xxx\yyy\test.php:34
     * 设置 $rootPath = 'F:\xxx\yyy'; 后
     *     p() called at <ROOT>\test.php:34
     * @var string
     */
    public $rootPath;

    /**
     * 传入进来的变量的名称
     * @var array
     */
    protected $varNames = [];

    /**
     * 在 $GLOBALS 中搜索变量名时要先排除的信息
     * @var array
     */
    private $exceptVars = array('GLOBALS' => 0, '_ENV' => 0, 'HTTP_ENV_VARS' => 0, 'ALLUSERSPROFILE' => 0,
        'CommonProgramFiles' => 0, 'COMPUTERNAME' => 0, 'ComSpec' => 0, 'FP_NO_HOST_CHECK' => 0, 'NUMBER_OF_PROCESSORS' => 0,
        'OS' => 0, 'Path' => 0, 'PATHEXT' => 0, 'PROCESSOR_ARCHITECTURE' => 0, 'PROCESSOR_IDENTIFIER' => 0,
        'PROCESSOR_LEVEL' => 0, 'PROCESSOR_REVISION' => 0, 'ProgramFiles' => 0, 'SystemDrive' => 0, 'SystemRoot' => 0,
        'TEMP' => 0, 'TMP' => 0, 'USERPROFILE' => 0, 'VBOX_INSTALL_PATH' => 0, 'windir' => 0, 'AP_PARENT_PID' => 0,
        'uchome_loginuser' => 0, 'supe_cookietime' => 0, 'supe_auth' => 0, 'Mwp6_lastvisit' => 0,
        'Mwp6_home_readfeed' => 0, 'Mwp6_smile' => 0, 'Mwp6_onlineindex' => 0, 'Mwp6_sid' => 0, 'Mwp6_lastact' => 0,
        'PHPSESSID' => 0, 'HTTP_ACCEPT' => 0, 'HTTP_REFERER' => 0, 'HTTP_ACCEPT_LANGUAGE' => 0, 'HTTP_USER_AGENT' => 0,
        'HTTP_ACCEPT_ENCODING' => 0, 'HTTP_HOST' => 0, 'HTTP_CONNECTION' => 0, 'HTTP_COOKIE' => 0,
        'PATH' => 0, 'COMSPEC' => 0, 'WINDIR' => 0, 'SERVER_SIGNATURE' => 0, 'SERVER_SOFTWARE' => 0, 'SERVER_NAME' => 0,
        'SERVER_ADDR' => 0, 'SERVER_PORT' => 0, 'REMOTE_ADDR' => 0, 'DOCUMENT_ROOT' => 0, 'SERVER_ADMIN' => 0,
        'SCRIPT_FILENAME' => 0, 'REMOTE_PORT' => 0, 'GATEWAY_INTERFACE' => 0, 'SERVER_PROTOCOL' => 0,
        'REQUEST_METHOD' => 0, 'QUERY_STRING' => 0, 'REQUEST_URI' => 0, 'SCRIPT_NAME' => 0, 'PHP_SELF' => 0,
        'REQUEST_TIME' => 0, 'argv' => 0, 'argc' => 0, '_POST' => 0, 'HTTP_POST_VARS' => 0, '_GET' => 0, 'HTTP_GET_VARS' => 0,
        '_COOKIE' => 0, 'HTTP_COOKIE_VARS' => 0, '_SERVER' => 0, 'HTTP_SERVER_VARS' => 0,
        '_FILES' => 0, 'HTTP_POST_FILES' => 0, '_REQUEST' => 0
    );

    public static function own()
    {
        if (self::$instance === null) {
            self::$instance = new self;
        }

        return self::$instance;
    }

    private function __construct()
    {
        if (defined('PROJECT_PATH')) {
            $this->rootPath = str_replace('\\', '/', PROJECT_PATH);
        } else {
            $this->rootPath = str_replace('\\', '/', $_SERVER['DOCUMENT_ROOT']);
        }
    }

    public static function config(array $config)
    {
        self::$opts = array_merge(self::$opts, $config);
    }

    private static $exitList = [
        'd' => false,
        'p' => false,
        'de' => true,
        'pe' => true,
        'vd' => false,
        'pr' => false,
        'uc' => false,
        'log' => false
    ];

    /**
     * @param array $vars
     * @param string $methodName
     * @param bool $hasType
     * @param bool $useSystemPrint
     * @return void
     */
    public function processing(array $vars, $methodName, $hasType = true, $useSystemPrint = false)
    {
        // 提取变量名称
        $allVar = array_diff_key($GLOBALS, $this->exceptVars);
        foreach ($allVar as $key => $val) {
            $this->varNames[$key] = $val;
        }

        $positionData = $this->calledPosition()->positionData;

        // print body
        $outputData = '';
        $last = array_pop($vars);

        foreach ($vars as $value) {
            $outputData .= $this->dump($value, $hasType, $useSystemPrint);
        }

        $this->exit = self::$exitList[$methodName];

        if ($last === self::$opts['exitKey']) {
            $this->exit = true;
        } elseif ($last === self::$opts['skipKey']) {
            $this->exit = false;
        } else {
            $outputData .= $this->dump($last, $hasType, $useSystemPrint);
        }

        $this->outputData = $outputData;
        // $this->dump($data, $hasType, $useSystemPrint);

        /** ajax 请求 且开启 ajax 检测 @TODO 未完善 */
        if (self::$detectAjax && PrintHelper::isAjax()) {
            $output = array(
                'position' => str_replace(PHP_EOL, '', $positionData),
                'content' => PrintHelper::clearTagAndFormat($outputData)
            );

            $outputData = json_encode($output) . ',';

            // 非 web 请求， CLI 命令行环境
        } elseif (!PrintHelper::isWebRequest()) {
            $outputData = PrintHelper::clearTagAndFormat($outputData);
        }

        if (self::$stripTags) {
            $outputData = PrintHelper::clearTagAndFormat($positionData . $outputData);
        } else {
            $outputData = $positionData . $outputData;
        }

        if (PrintHelper::isCli() && PrintHelper::hasColorSupport()) {
            $outputData .= "\n\033[46;37m <<<<<< $methodName() print out end ...... \033[0m\n";
        } else if (!PrintHelper::isWebRequest()) {
            $outputData .= "\n<<<<<< $methodName() print out end ......\n";
        }

        self::quit($outputData, $this->exit);
    }

//////////////////////////////// 打印输出设置 ////////////////////////////////

    /**
     * 隐藏输出内容，只剩下工具条
     * @param bool $value
     */
    public static function hidden($value = true)
    {
        self::$opts['hidden'] = (bool)$value;
    }

    /**
     * 禁用输出
     * @param bool $value
     */
    public static function disabled($value = true)
    {
        self::$opts['disabled'] = (bool)$value;
    }

    /**
     * 去除html标记
     * @param bool $value
     */
    public static function stripTags($value = true)
    {
        self::$opts['stripTags'] = (bool)$value;
    }


    /**
     * 开启侦测Ajax请求, 需在加载页面时开启(而不是在Ajax请求时调用开启)
     * @todo 未完善
     * @param bool $value
     */
    public static function detectAjax($value = true)
    {
        if ($value === 'end' && PrintHelper::isAjax()) {
            self::quit();
        } else {
            if (self::$detectAjax = (bool)$value) {
                echo self::_scriptTag();
            }
        }
    }

//////////////////////////////// 可用方法 ////////////////////////////////

    ## 打印输出，不含类型

    /**
     * 多个打印
     * @param array $vars
     * @return void
     */
    public function p(...$vars)
    {
        self::own()->processing($vars, 'p', false);
    }

    /**
     * 多个打印,会退出
     * @param array $vars
     */
    public function pe(...$vars)
    {
        self::own()->processing($vars, 'pe', false);
    }

    /**
     * pr === print_r 但支持传入多个参数
     * @param array $vars
     */
    public function pr(...$vars)
    {
        self::own()->processing($vars, 'pr', false, true);
    }

    ## 打印输出，含数据类型

    /**
     * 打印一个或者多个参数： 可以传入多个参数；最后一个若为 -4 则退出程序
     * d($arg1,$arg2,$arg3,...)
     * @param array $vars
     */
    public function d(...$vars)
    {
        self::own()->processing($vars, 'd');
    }

    /**
     * 同d(),但是打印后会立即退出程序；最后一个若为 _5 则放弃退出
     * @param array $vars
     */
    public function de(...$vars)
    {
        self::own()->processing($vars, 'de');
    }

    /**
     * vd === var_dump
     * @param array $vars
     */
    public static function vd(...$vars)
    {
        self::own()->processing($vars, 'vd', true, true);
    }

    /**
     * 默认打印数据保存文件
     * @var string
     */
    private static $tempFile = 'dump.txt';

    /**
     * 设置保存输出数据到文件
     * @var boolean
     */
    private static $saveToFile = false;

    /**
     * 保存输出数据到文件设置
     * true 追加内容
     * false 覆盖内容
     * @var boolean
     */
    private static $appendData = true;

    public function log(...$vars)
    {
        $str = PHP_EOL;

        foreach ($vars as $var) {
            $str .= PrintHelper::getSystemPrintData($var);
        }

        \file_put_contents(self::$tempFile, $str, FILE_APPEND);
    }

    /**
     * 打印用户定义常量 user constant
     * @internal param bool $return description]
     * @return void
     */
    public function puc()
    {
        $const = \get_defined_constants(true);

        if (!isset($const['user'])) {
            $this->outputData = $this->dump(null);
        } else {
            $this->outputData = $this->dump($const['user']);
        }
    }

//////////////////////////////// 输出数据解析 ////////////////////////////////


    /**
     * 格式化打印数组，含类型 长度 ==var_dump
     * @param mixed $data
     * @param bool | int $hasType 输出类型
     * @param bool | int $useSystemPrint 使用系统函数打印
     * @return string
     * @internal param bool|int $exit
     */
    private function dump($data, $hasType = true, $useSystemPrint = false): string
    {
        $style = '';

        if (self::$hidden) {
            $style = ' style="display:none;"';
        }

        $outString = '%s';

        if (PrintHelper::isWebRequest()) {
            $outString = "<!-- output print start -->\n<div class=\"general-print-box general-print-font general-print-shadow\" $style>\n%s</div>\n<!-- output print end -->" . PHP_EOL;
        }

        # 使用系统函数打印
        if ($useSystemPrint) {
            $result = PrintHelper::getSystemPrintData($data, $hasType);
            $outString = sprintf($outString, $result);
            # 自定义函数
        } else {
            $result = self::_handleTypeOutput($data, $hasType);
            $outString = sprintf($outString, $result);
        }

        unset($result);

        return $outString;
    }

    /**
     * 格式化打印，不含数据类型
     * @param $data
     * @param bool $mark
     * @param string $outString
     * @return string
     */
    private static function _handleNormalOutput($data, $mark = true, $outString = ''): string
    {
        $html = 'htmlspecialchars';
        $ucfirst = 'ucfirst';
        $jsClass = self::$controlClass;//' class="js-print-showOrHide"';
        $usualString = "<dt><div class=\"array-value\">\n%s</div></dt>\n";
        $outString .= '<dl>' . PHP_EOL;
        $dataType = \gettype($data);

        if (\is_array($data)) {
            $count = 'count';
            if ($mark) {
                $outString = sprintf(
                    "<dt>\n<div class=\"%s\" style=\"%s\"><b class=\"general-print-color-dg\">%s</b>(size:<b>%d</b>)<b>(</b></div><span class=\"print-icon icon-hide\"></span>\n</dt>",
                    $jsClass, 'width:98%', ucfirst($dataType), count($data)
                );
            }
            $outString .= '<!-- .general-print-ar-content -->' . PHP_EOL . '<dd class="general-print-ar-content">';

            foreach ($data as $k => $v) {
                $k = \is_int($k) ? $k : "'{$html($k,ENT_QUOTES)}'";
                $vType = \gettype($v);
                $outString .= PHP_EOL . "<dl>\n<dt><div class=\"array-key\">\t$k</div>";

                if (\is_array($v) || \is_object($v) || \is_resource($v)) {
                    $outString .= "<div class=\"array-value {$jsClass}\"> &rArr; <strong class=\"general-print-color-dg\">{$ucfirst($vType)}</strong>(size:";

                    if (empty($v)) {
                        $outString .= '0)<strong>()</strong> </div><span class="print-icon icon-hide"></span></dt>';
                        continue;
                    }

                    $outString .= "<strong>{$count((array)$v)}</strong>)<strong>(</strong></div><span class=\"print-icon icon-hide\"></span>\n</dt>" . PHP_EOL;
                    $outString .= ltrim(self::_handleNormalOutput($v, false), '<dl>');
                } else {
                    $v = PrintHelper::getTypeString($v);
                    $outString .= "<div class=\"array-value\"> &rArr; <span class=\"general-print-color-r\">{$v}</span> </div></dt>\n</dl>";
                }

            }//--endforeach--

            $outString .= PHP_EOL . '</dd><!-- /.general-print-ar-content -->' . PHP_EOL . '</dl>' . PHP_EOL . '<dl><dt><strong>)</strong></dt>';
        } else if (is_object($data)) {
            $outString .= PrintHelper::getSystemPrintData($data, 0);
        } else if (is_resource($data)) {
            if (($type = get_resource_type($data)) === 'stream' && $meta = stream_get_meta_data($data)) {

                if (isset($meta['uri'])) {
                    $file = $meta['uri'];
                    $resourceString = "resource ({$type}) {$html( $file, ENT_QUOTES )}";
                } else {
                    $resourceString = "resource ({$type})";
                }

            } else {
                $resourceString = "resource ({$type})";
            }

            $outString .= sprintf($usualString, $resourceString);
        } else {
            $data = PrintHelper::getTypeString($data);
            $outString .= '<span class=\"general-print-color-r\">' . sprintf($usualString, $data) . '</span>';
        }

        return $outString . '</dl>' . PHP_EOL;
    }

    /**
     * 格式化打印，含数据类型
     * @param $data
     * @param bool $hasType
     * @param bool $mark
     * @internal string $tab 每递归一次，添加一次Tab缩进
     * @param string $outString
     * @internal param $type ] $o description]
     * @return string
     */
    private static function _handleTypeOutput($data, $hasType = true, $mark = true, $outString = '')
    {
        # 常规打印，不含有类型
        if (!$hasType) {
            return self::_handleNormalOutput($data);
        }

        $jsClass = self::$controlClass;
        $html = 'htmlspecialchars';
        $ucfirst = 'ucfirst';
        static $i = 1;
        $usualString = "<dt><div class=\"array-value\">\n%s</div></dt>\n";
        $outString .= '<dl>' . PHP_EOL;
        $dataType = gettype($data);

        // if (is_object($data)) $data = (array)$data;
        # 含类型打印
        if (is_array($data)) {
            $count = 'count';
            $mark && $outString .= "<dt>\n<span class=\"print-icon icon-hide\"></span><div class=\"{$jsClass}\" style=\"width:98%\">" .
                "<strong class=\"general-print-color-dg\">{$ucfirst($dataType)}</strong>(size:<strong>{$count($data)}</strong>)<strong>(</strong></div>\n</dt>\n";
            $outString .= '<!-- .general-print-ar-content -->' . PHP_EOL . '<dd class="general-print-ar-content">';
            $tab = self::_getTab($i);

            foreach ($data as $k => $v) {
                $vType = gettype($v);
                $k = is_int($k) ? $k : "'{$html($k,ENT_QUOTES)}'";
                $outString .= "\n<dl>\n<dt><div class=\"array-key\">$tab$k</div>";

                if (is_array($v) || is_object($v) || is_resource($data)) {//
                    $outString .= "<div class=\"array-value {$jsClass}\"> &rArr; <strong class=\"general-print-color-dg\">{$ucfirst($vType)}</strong>(size:";

                    if (empty($v)) {
                        $outString .= '0)<strong>()</strong> </div><span class="print-icon icon-hide"></span></dt>';
                        continue;
                    }
                    $i++;

                    $outString .= "<strong>{$count((array)$v)}</strong>)<strong>(</strong></div>\n<span class=\"print-icon icon-hide\"></span></dt>\n";
                    $outString .= ltrim(self::_handleTypeOutput($v, true, false), '<dl>');
                } else {
                    $length_html = '';

                    if ($v === null) {
                        $v = '(null)';
                    } else if ($v === false) {
                        $v = '(false)';
                    } else if ($v === true) {
                        $v = '(true)';
                    } else {
                        $length = PrintHelper::strLength($v);
                        $length_html = "(<span class=\"general-print-color-g\">length:</span>{$length})";
                        $vType === 'string' && $v = "\"{$html($v,ENT_QUOTES)}\"";
                    }

                    $outString .= "<div class=\"array-value\"> &rArr; {$vType} <span class=\"general-print-color-r\">{$v}</span> {$length_html} </div></dt>" . PHP_EOL . "</dl>";
                }
            }//--endforeach--

            $endTab = substr($tab, 0, -($i - 1));
            $outString .= "\n</dd><!-- /.general-print-ar-content -->\n</dl>\n<dl><dt><strong>$endTab)</strong></dt>";
        } else if (is_object($data)) {
            // $outString .= PrintHelper::getSystemPrintData($data);
            $outString .= '<!-- .general-print-ar-content -->' . PHP_EOL . '<dd class="general-print-ar-content">';
            $outString .= PrintHelper::getSystemPrintData($data);
            $outString .= "\n</dd><!-- /.general-print-ar-content -->\n</dl>\n<dl><dt><strong>  )</strong></dt>";
        } else if (is_resource($data)) {
            if (($dataType = get_resource_type($data)) === 'stream' and $meta = stream_get_meta_data($data)) {

                if (isset($meta['uri'])) {
                    $file = $meta['uri'];
                    $resourceString = "Resource ({$dataType}) {$html( $file, ENT_QUOTES)}";
                } else {
                    $resourceString = "Resource ({$dataType})";
                }

            } else {
                $resourceString = "Resource ({$dataType})";
            }

            $outString .= sprintf($usualString, $resourceString);
        } else {
            $length = null;

            if ($data === false) $data = 'false';
            else if ($data === true) $data = 'true';
            else if ($data === null) $data = 'null';
            else $length = PrintHelper::strLength($data);// float integer string

            $dataType === 'string' && $data = "\"{$html($data,ENT_QUOTES)}\"";

            if ($length === null)
                $lengthString = '';
            else
                $lengthString = "(<span class=\"general-print-color-g\">length:</span>{$length})";

            $outString .= sprintf($usualString, "{$dataType} <span class=\"general-print-color-r\">{$data}</span> {$lengthString}");
        }

        return $outString . '</dl>' . PHP_EOL;
    }

//////////////////////////////// 辅助函数 ////////////////////////////////

    // 得到函数的调用位置，以免调用太多，找不到调用打印的地方
    /**
     * @param int $backNum
     * @param string $separator
     * @return mixed
     */
    public function calledPosition($backNum = 4, $separator = '#3 ')
    {
        if (!headers_sent()) {
            header('Content-Type: text/html; charset=UTF-8');
        }

        if (self::$disabled) {
            return '';
        }

        ob_start();
        debug_print_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, $backNum);
        $position = ob_get_clean();

        $position = str_replace(array("\n", $separator), '', strstr($position, $separator));
        $position = trim(str_replace('\\', '/', $position));

        # ajax cli flash
        if (self::$stripTags || !PrintHelper::isWebRequest()) {
            $position = str_replace($this->rootPath, '<ROOT>', $position);

            if (PrintHelper::isCli() && PrintHelper::hasColorSupport()) {
                $this->positionData = "\n\033[46;37m >>>>>> The method $position\033[0m\n";
            } else {
                $this->positionData = "\n>>>>>> The method $position\n";
            }

            return $this;
        }

        $position = str_replace($this->rootPath, '&lt;ROOT&gt;', $position);
        $positionData = '';

        # 加载样式和jQuery。 TODO: 同一个页面只加载一次样式和jQuery
        if (!self::$hasStyle) {
            $positionData .= self::_styleTag() . PHP_EOL . self::_scriptTag();
            self::$hasStyle = true;
        }

        #
        $tips = !static::$hidden ? '' : '打印数据已隐藏,请点击右侧开关按钮显示数据。';
        $positionData .= <<<EOF
<div class="general-print-pos general-print-font">
  <p class="js-general-pos-info general-pos-info" style="display:inline-block;">调用位置：$position <span class="general-print-tips">$tips</span></p>
  <span class="general-print-help">?</span>
  <span class="general-print-code">&equiv;</span>
  <span class="general-print-switch js-general-print-switch">&otimes;</span>
</div>
EOF;
        $this->positionData = $positionData;

        return $this;
    }

    private static function _getTab($n): string
    {
        $tab = "\t";
        if ($n === 1) {
            return $tab;
        }

        for ($i = 1; $i < $n; $i++) {
            $tab .= "\t";
        }

        return $tab;
    }

    private static function _styleTag(): string
    {
        $css = file_get_contents(__DIR__ . '/static/po.css');
        $css = preg_replace('/\s\s+/', ' ', $css);
        $styleTag = "<!-- PRINT_OUTPUT_STYLE -->\n<style type='text/css'>%s</style>\n<!-- PRINT_OUTPUT_STYLE -->";

        return sprintf($styleTag, $css);
    }

    private static function _scriptTag(): string
    {
        $find = array(
            '__reallyDetectAjax__', '__controlClass__'
        );
        $replace = array(
            'false', static::$controlClass
        );

        $jsCode = \file_get_contents(__DIR__ . '/static/po.js');

        if (self::$detectAjax) {
            $replace = array(
                'true', static::$controlClass
            );
        }

        $jsCode = str_replace($find, $replace, trim($jsCode));

        $jsTag = "%s<script type=\"text/javascript\">\n" . '%s ' . "\n</script>\n<!--PRINT_OUTPUT_SCRIPT-->\n";

        return sprintf($jsTag, self::_jqueryLoad(), $jsCode);
    }

    public static function _jqueryLoad(): string
    {
        $jqueryCdn = self::$jqueryCdn;
        $jqueryLoc = self::$jqueryLoc;

        return <<<EOF
<!--PRINT_OUTPUT_SCRIPT-->
<script type="text/javascript">
  !window.jQuery && document.write('<script src="$jqueryCdn"><\/script>');
 </script>
<script type="text/javascript">
  !window.jQuery && document.write('<script src="$jqueryLoc"><\/script>');
 </script>
EOF;
    }

    public static function quit($msg = '', $exit = true)
    {
        if ($exit) {
            exit($msg);
        }

        echo $msg;
    }

}// class end