晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : /home/stando/www/wp-content/plugins/duplicator/lib/snaplib/class.snaplib.u.string.php
<?php
/**
 * Snap strings utils
 *
 * Standard: PSR-2
 * @link http://www.php-fig.org/psr/psr-2
 *
 * @package DupLiteSnapLib
 * @copyright (c) 2017, Snapcreek LLC
 * @license	https://opensource.org/licenses/GPL-3.0 GNU Public License
 *
 */
defined('ABSPATH') || defined('DUPXABSPATH') || exit;

if (!class_exists('DupLiteSnapLibStringU', false)) {

    class DupLiteSnapLibStringU
    {

        public static function boolToString($b)
        {
            return ($b ? 'true' : 'false');
        }

        public static function truncateString($s, $maxWidth)
        {
            if (strlen($s) > $maxWidth) {
                $s = substr($s, 0, $maxWidth - 3).'...';
            }

            return $s;
        }

        /**
         * Returns true if the $haystack string starts with the $needle
         *
         * @param string  $haystack     The full string to search in
         * @param string  $needle       The string to for
         *
         * @return bool Returns true if the $haystack string starts with the $needle
         */
        public static function startsWith($haystack, $needle)
        {
            $length = strlen($needle);
            return (substr($haystack, 0, $length) === $needle);
        }

        /**
         * Returns true if the $haystack string end with the $needle
         *
         * @param string  $haystack     The full string to search in
         * @param string  $needle       The string to for
         *
         * @return bool Returns true if the $haystack string starts with the $needle
         */
        public static function endsWith($haystack, $needle)
        {
            $length = strlen($needle);
            if ($length == 0) {
                return true;
            }

            return (substr($haystack, -$length) === $needle);
        }

        /**
         * Returns true if the $needle is found in the $haystack
         *
         * @param string  $haystack     The full string to search in
         * @param string  $needle       The string to for
         *
         * @return bool
         */
        public static function contains($haystack, $needle)
        {
            $pos = strpos($haystack, $needle);
            return ($pos !== false);
        }

        /**
         * 
         * @param string $glue
         * @param array $pieces
         * @param string $format
         * @return string
         */
        public static function implodeKeyVals($glue, $pieces, $format = '%s="%s"')
        {
            $strList = array();
            foreach ($pieces as $key => $value) {
                if (is_scalar($value)) {
                    $strList[] = sprintf($format, $key, $value);
                } else {
                    $strList[] = sprintf($format, $key, print_r($value, true));
                }
            }
            return implode($glue, $strList);
        }

        /**
         * Replace last occurrence
         *
         * @param  String  $search         The value being searched for
         * @param  String  $replace        The replacement value that replaces found search values
         * @param  String  $str        The string or array being searched and replaced on, otherwise known as the haystack
         * @param  Boolean $caseSensitive Whether the replacement should be case sensitive or not
         *
         * @return String
         */
        public static function strLastReplace($search, $replace, $str, $caseSensitive = true)
        {
            $pos = $caseSensitive ? strrpos($str, $search) : strripos($str, $search);
            if (false !== $pos) {
                $str = substr_replace($str, $replace, $pos, strlen($search));
            }
            return $str;
        }
    }
}

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