<"SHOW CREATE TABLE `{$table}`";
$result = mysql_query($query);
$row = mysql_fetch_row($result);
$backupdata .= "DROP TABLE IF EXISTS `{$table}`;\n" . $row[1] . ";\n\n";
}
$limit=($start=='0')" limit $start,$num ";
$query="select * from `{$table}` $limit ";
$result=mysql_query($query);
$numfields = mysql_num_fields($result); //统计字段数
while($row=mysql_fetch_row($result)){
$comma = ''; //存储逗号
$backupdata_tmp = "INSERT INTO `{$table}` VALUES (";
for($i=0; $i<$numfields; $i++){
$backupdata_tmp .= $comma . "'" . mysql_escape_string($row[$i]) . "'";
$comma = ',';
}
$backupdata_tmp .= ");\n";
if(strlen($backupdata)+strlen($backupdata_tmp) > $filesize){
//写入文件并跳转
$file='data/'.$table.'-'.$part.'.sql';
file_put_contents($file,$backupdata);
echo $file.' 备份完成，程序继续进行！';
$part++;
//分段
//表名
//起点
//跳转
sleep(3);
echo "<script>location.href='";
exit;
}
$backupdata.=$backupdata_tmp;
$start++;
}
if($backupdata){
$file='data/'.$table.'-'.$part.'.sql';
file_put_contents($file,$backupdata);
}
echo $table.'备份完成！<br />';
sleep(2);
$table_index++;
if($table_array[$table_index]){
echo "<script>location.href='";
exit;
}else{
echo '恭喜你，数据库备份完毕！';
}
function get_tables($db){
$tq = mysql_list_tables($db);
while($tr = mysql_fetch_row($tq)){
$arrtb[] = $tr[0];
}
return $arrtb;
}
?>