소스에 직접 배열된 날짜를 텍스트로 읽어들일 수 없을까요?

<?php/*$mwdayfile = file($file_index."/minwon.txt");   for($i=0; $i<count($mwdayfile); $i++) {  // 파일 첫 행부터 끝행까지 루프   $mwarr = explode("\n", $mwdayfile[$i]);   $YY_hday = $mwarr[1];   echo $YY_hday; } */ // 여기서부터 동작 안합니다.// Notice: Undefined variable: f_date$mw_date = $f_date;$YY_hday =array(     '2017-08-15',     '2017-10-03',     '2017-10-04',     '2017-10-05',     '2017-10-06',     '2017-10-09',     '2017-12-25',     '2018-01-01',     '2018-02-15',     '2018-02-16',     '2018-02-17',     '2018-02-18',     '2018-03-01',     ); $timestamp = strtotime($mw_date); $step = $plus = 0; while ( $step < 30 ) {     list($d,$w) = explode(' ',date('Y-m-d w',$timestamp));     $timestamp+= 86400;     $step++;     if ( $w%6==0 || in_array($d,$GLOBALS['YY_hday'])){         $plus++; $step--;     }} ?>

$YY_hday =array(     '2017-08-15',     '2017-10-03',     '2017-10-04',     '2017-10-05',     '2017-10-06',     '2017-10-09',     '2017-12-25',     '2018-01-01',     '2018-02-15',     '2018-02-16',     '2018-02-17',     '2018-02-18',     '2018-03-01',     ); // 여기서부터 동작 안합니다.// Notice: Undefined variable: mw_date $timestamp = strtotime($mw_date);$step = $plus = 0; while ( $step < 30 ) {     list($d,$w) = explode(' ',date('Y-m-d w',$timestamp));     $timestamp+= 86400;     $step++;     if ( $w%6==0 || in_array($d,$GLOBALS['YY_hday'])){         $plus++; $step--;     }} ?>