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위와 같은 에러 메세지가 가끔씩 나오는데요 아래 리스트 파일 소스 입니다. 고수님들 조언좀 부탁드립니다.

<?
for ($i=0; $i<count($list); $i++)
{
    if ($i && $i%$mod==0)
    echo "</tr><tr><td colspan='{$mod}' height=20></td></tr><tr>";
    $img = "<img src='$board_skin_path/img/noimage.gif' border=0 title='이미지 없음'>";



$phone = $list[$i]['wr_content'];

if (eregi("<img [^<>]*>", $phone, $regs)) { // img src="images/xxx.gif" 까지 추출

    $tmp_str = $regs[0];
    eregi("[^= \"']*\.(gif|jpg|png|bmp)", $tmp_str, $regs1);  // images/xxx.gif 까지 추출
    $tmp1_str = $regs1[0];
    eregi("[^= '/]*\.(gif|jpg|png|bmp)", $tmp1_str, $regs2); // xxx.gif 까지 추출

    $filename = $regs2[0]; // 파일명

} else {

    $filename = "";

}

// 파일
if ($list[$i][file][0][file]) {

    // 썸네일
    $thumb = $thumb_path.'/'.$list[$i][file][0][file];

} else {

    // 썸네일
    $thumb = $thumb_path.'/'.$filename;

}

// 썸네일이 없다면
if (!file_exists($thumb)) {

    // 파일
    if ($list[$i][file][0][file]) {

        // 원본
        $thumb_file = $list[$i][file][0][path] .'/'. $list[$i][file][0][file];

    } else {

        // 날짜별 폴더 지정
        $thumb_date = date("Ym", strtotime($list[$i]['wr_datetime']));
        $date_url = substr($thumb_date,2,5);
        $data_path = "{$g4['path']}/data/cheditor/{$date_url}";

        // 원본
        $thumb_file = $data_path.'/'.$filename;

    }

    // 확장자 체크
    if (preg_match("/\.(jp[e]?g|gif|png)$/i", $thumb_file) && file_exists($thumb_file)) {

        createThumb($thumb_width, $thumb_height, $thumb_file, $thumb, true);

    }

}



  if (file_exists($thumb)) {

if (preg_match("/\.(jp[e]?g|gif|png)$/i", $thumb)){
$img = "<a href='{$list[$i][href]}' ><img src='{$thumb}' border=0 style='border:0px solid #999999;'></a>";
}


} else {
preg_match("`<\s*img\s+src\s*=\s*['|\"]?([^'|\"\s]+://[^'|\"\s]+\.(gif|jpe?g|png))['|\"]?\s*[^>]+`i", $list[$i]['wr_content'], $images);

if (!empty($images[1])) {



###########278번째라인입니다.        $img_size = GetImageSize("$images[1]");



###########279번째라인입니다.                        if($img_size[0] >= $img_size[1]) {



###########280번째라인입니다.     $imgper = $thumb_width/$img_size[0];



$thumb_height = $img_size[1]*$imgper;
}else{
$imgper = $thumb_height/$img_size[1];
$thumb_width = $img_size[0]*$imgper;
}

$img = "<a href='{$list[$i][href]}' ><img src='{$images[1]}' align='absmiddle' border='0'></a>";
} else {
$img = "<img src='$board_skin_path/img/noimage.gif' border=0 title='이미지 없음'>";
}
}

    $style = "";
    if ($list[$i][icon_new])
        $style = " style='font-weight:bold;' ";
    $subject = "<a href='{$list[$i][href]}' onfocus='this.blur()'><span $style>".cut_str($list[$i][subject],18)."</span></a>";

    $comment_cnt = "";
    if ($list[$i][comment_cnt])
        $comment_cnt = " <a href=\"{$list[$i][comment_href]}\"><span style='font-size:7pt;font-family:tahoma;color:#EE5A00; vertical-align:1px;'>{$list[$i][comment_cnt]}</span></a>";

    $bg = "";  //새글?
    if ($list[$i][icon_new])
        $bg="thumb_1_2.gif";
      else
        $bg="thumb_1.gif";