$bf_content 분할저장하는 방법

<input type="file" name="bf_file[10]" title="파일첨부" class="frm_file frm_input" id="reg_mb_img10">
                    <?php if ($is_file_content) { ?>  
                <?
                $bf_content = explode("|",$bf_content[10]); //제품정보

                $bf_name = $bf_content[0];
                $bf_size01 = $bf_content[1];
                $bf_size02 = $bf_content[2];
                ?>
                제품명 <input type="text" name="bf_name" value="<?php echo ($w == 'u') ? $bf_name : ''; ?>" class="frm_input" size="30">
                제품크기 <input type="text" name="bf_size01" value="<?php echo ($w == 'u') ? $bf_size01 : ''; ?>" class="frm_input" size="30">
                제품크기 <input type="text" name="bf_size02" value="<?php echo ($w == 'u') ? $bf_size02 : ''; ?>" class="frm_input" size="30">
                    
                    <input class="frm_input" size="20" maxlength="20" name="wr_31" value='<?=$write['wr_31']?>' placeholder="가격">
                    <?php } ?>

$sql = " update {$g5['board_file_table']}
                        set bf_content = '{$bf_content[10]}'
                        where bo_table = '{$bo_table}'
                                  and wr_id = '{$wr_id}'
                                  and bf_no = '{$i}' ";
            sql_query($sql);