php对用户输入的非标准格式日期匹配

这两天在做的项目中需要对用户输入的日期进行匹配，匹配的格式范围 包括:

2001.4.3

六月五号

七月十五

一一年四月三日

二零一三年五月六日

01年3月7日

2011年3月31日

今天、明天、下周一、周六

使用的是正则来处理，值得注意的是再utf8编码下，正则使用\u选项就能在表达式中直接输入中文。一下贴出代码：

    //时间标识%6.5%
    private function analyze_time( $content ){
        $time = false;

        if( preg_match( '/%.*?%/', $content, $matches ) ){
            $time_str = trim( substr( $matches[0], 1, strlen( $matches[0] ) - 2 ) );
            $time = $this -> analyze_time_day( $time_str );
            (!$time ) && $time = $this -> analyze_time_week( $time_str );
            (!$time ) && $time = $this -> analyze_time_date( $time_str );
        }
        return $time;
    }

    function analyze_time_day( $content ){
        $day = array(
            '今天' => 0,
            '明天' => 3600 * 24,
            '后天' => 3600 * 48,
            '大后天' => 3600 * 72,
        );
        return isset( $day[$content] )?$day[$content]:false;
    }

function analyze_time_week( $content ){


        $now = now();
        $time = 0;
        $week = array( "周", "礼拜", "星期" );
        $week_pre = array( "下", "下个" );
        $week_day = array( "一" => 1, "二" => 2, "三" => 3, "四" => 4, "五" => 5, "六" => 6, "天" => 7, "日" => 7 );

        //模式一，匹配 "周一" , "下周一", "周日";
        $reg1 = "/^(" . implode( "|", $week_pre ) . ")?(" . implode( "|", $week ) . ")(" . implode( "|", array_keys( $week_day ) ) . ")/u";
        preg_match_all( $reg1, $content, $match );
        if( (!empty( $match[0] )) && (!empty( $match[2] )) && (!empty( $match[3] )) ){
            //匹配结果数组 1:下; 2:星期 3:一
            //判断今天
            $w = date( "w", $now );
            $w == 0 && $w = 7;
            //判断输入时期
            $w_2 = $week_day[$match[3][0]];
            if( empty( $match[1][0] ) ){
                $time = $w_2 - $w > 0 ? 3600 * 24 * ($w_2 - $w) : 0;
            }else{
                $time = 3600 * 24 * ($w_2 - $w + 7 );
            }
        }
        return $time == 0 ? false : ( int ) $now + ( int ) $time;
    }

function analyze_time_date( $content ){
        $now = now();
        $content = str_replace( ".", "-", $content );
        if( strtotime( $content ) ){
            return strtotime( $content );
        }

        $number = array( "零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十", "十一", "十二" );
        $number_2 = $number;
        $number_2 = array_splice( $number_2, 1, 10 );
        $reg2_2 = "/(0?[1-9]|10|11|12|[" . implode( "", $number_2 ) . "]|(十一|十二))月([012]?[0-9]|30|31|(十|二十|三十)?[" . implode( "", $number_2 ) . "十]?)日?/u";
        preg_match_all( $reg2_2, $content, $match );
//        print_r( $match );
        //匹配数组 1:月份 3:日

        if( (!empty( $match[0] )) && (!empty( $match[1][0] )) && (!empty( $match[3][0] )) ){
            $str_month = $match[1][0];
            $str_day = $match[3][0];
            $month = is_numeric( $str_month ) ? $str_month : false;
            if( !$month ){
                foreach( $number as $k => $v ){
                    if( $v == $str_month ){
                        $month = $k;
                    }
                }
            }
//            echo "month:{$month}";

            $day = is_numeric( $str_day ) ? $str_day : false;
            if( !$day ){
                $day = array_search( $str_day, $number );
                if( !$day ){
                    $number_3 = $number;
                    $number_3 = array_splice( $number_3, 1, 9 );
                    $re_day = preg_match_all( "/([一二三])?(十)([" . implode( "", $number_3 ) . "])?/u", $str_day, $match_2 );
                    $day = array_search( $match_2[1][0], $number ) ? array_search( $match_2[1][0], $number ) * 10 : 10;
                    $day += array_search( $match_2[3][0], $number ) ? array_search( $match_2[3][0], $number ) : 0;
                }
            }
//            echo "day:{$day}";

            if( $month == false || $day == false ){
                return false;
            }

            if( $match[0][0] == $content ){
                //无年份前缀
                $output = date( "Y", $now ) . "-" . $month . "-" . $day;
            }else{
                //有年份前缀
                $year = $this -> analyze_time_year( str_replace( $match[0][0], "", $content ) );
                if( $year ){
                    $output = $year . "-" . $month . "-" . $day;
                }else{
                    return false;
                }
            }
            return strtotime( $output );
        }
        return false;
    }


function analyze_time_year( $content ){
        $number = array( "零", "一", "二", "三", "四", "五", "六", "七", "八", "九", "十" );


        //模式二 --一，匹配年 2001年，01年，零一年，二九年，二零一九年
        //1-9
        $number_1 = $number;
        $number_1 = array_splice( $number_1, 0, 10 );
        $reg2_1 = "/((20|二零)?([12一二])([0-9]|[" . implode( "", $number_1 ) . "]))(?(1)年)/u";
        preg_match_all( $reg2_1, $content, $match );
        if( (!empty( $match[0] )) && (!empty( $match[3][0] )) && (!empty( $match[4][0] )) ){
            $day = ( is_numeric( $match[3][0] ) ? $match[3][0] : array_search( $match[3][0], $number ) ) * 10;
            $day += is_numeric( $match[4][0] ) ? $match[4][0] : array_search( $match[4][0], $number );
        }else{
            return false;
        }

        return $day ? $day + 2000 : false;
    }

每个函数都可以单独使用。