PHP下载完整的mysql数据库作为.sql备份文件
我在PHP中寻找一种方法,将mysql数据库作为.sql文件作为下载文件发送到客户端。 我找到了很多解决方案,我非常喜欢通过PHP下载完整的mysql数据库作为.sql备份文件,php,mysql,database,Php,Mysql,Database,我在PHP中寻找一种方法,将mysql数据库作为.sql文件作为下载文件发送到客户端。 我找到了很多解决方案,我非常喜欢通过exec()(或shell\u exec()或system())使用mysqldump命令的方法,但遗憾的是,在这种情况下,mysqldump命令对我不可用 由于我的数据库连接也不能硬编码,我发现了很多“重新发明轮子”的解决方案,您只需查询“SHOW TABLES”并开始迭代,就像这里:(Raju Dudhrejiya的回答)。 这个方法非常有效,直到我注意到它只保存表,我
exec()
(或shell\u exec()
或system()
)使用mysqldump
命令的方法,但遗憾的是,在这种情况下,mysqldump
命令对我不可用
由于我的数据库连接也不能硬编码,我发现了很多“重新发明轮子”的解决方案,您只需查询“SHOW TABLES”
并开始迭代,就像这里:(Raju Dudhrejiya的回答)。
这个方法非常有效,直到我注意到它只保存表,我发现的其他类似方法也是如此。没有事件、触发器等。。这很糟糕。真糟糕
我需要一些至少也能备份事件的东西,所以我的第一个方法就是扩展下面的方法(取自上面的链接),尽管我不确定如何继续。我想我必须以某种方式查询所有事件,并在某处附加一个'CREATE EVENT'
语句?
有人做过类似的事情吗
function Export_Database($host,$user,$pass,$name, $tables=false, $backup_name=false )
{
$mysqli = new mysqli($host,$user,$pass,$name);
$mysqli->select_db($name);
$mysqli->query("SET NAMES 'utf8'");
$queryTables = $mysqli->query('SHOW TABLES');
while($row = $queryTables->fetch_row())
{
$target_tables[] = $row[0];
}
if($tables !== false)
{
$target_tables = array_intersect( $target_tables, $tables);
}
foreach($target_tables as $table)
{
$result = $mysqli->query('SELECT * FROM '.$table);
$fields_amount = $result->field_count;
$rows_num=$mysqli->affected_rows;
$res = $mysqli->query('SHOW CREATE TABLE '.$table);
$TableMLine = $res->fetch_row();
$content = (!isset($content) ? '' : $content) . "\n\n".$TableMLine[1].";\n\n";
for ($i = 0, $st_counter = 0; $i < $fields_amount; $i++, $st_counter=0)
{
while($row = $result->fetch_row())
{ //when started (and every after 100 command cycle):
if ($st_counter%100 == 0 || $st_counter == 0 )
{
$content .= "\nINSERT INTO ".$table." VALUES";
}
$content .= "\n(";
for($j=0; $j<$fields_amount; $j++)
{
$row[$j] = str_replace("\n","\\n", addslashes($row[$j]) );
if (isset($row[$j]))
{
$content .= '"'.$row[$j].'"' ;
}
else
{
$content .= '""';
}
if ($j<($fields_amount-1))
{
$content.= ',';
}
}
$content .=")";
//every after 100 command cycle [or at last line] ....p.s. but should be inserted 1 cycle eariler
if ( (($st_counter+1)%100==0 && $st_counter!=0) || $st_counter+1==$rows_num)
{
$content .= ";";
}
else
{
$content .= ",";
}
$st_counter=$st_counter+1;
}
} $content .="\n\n\n";
}
//$backup_name = $backup_name ? $backup_name : $name."___(".date('H-i-s')."_".date('d-m-Y').")__rand".rand(1,11111111).".sql";
$backup_name = $backup_name ? $backup_name : $name.".sql";
header('Content-Type: application/octet-stream');
header("Content-Transfer-Encoding: Binary");
header("Content-disposition: attachment; filename=\"".$backup_name."\"");
echo $content; exit;
}
函数导出\u数据库($host、$user、$pass、$name、$tables=false、$backup\u name=false)
{
$mysqli=newmysqli($host、$user、$pass、$name);
$mysqli->select_db($name);
$mysqli->query(“设置名称‘utf8’”);
$queryTables=$mysqli->query('showtables');
而($row=$queryTables->fetch_row())
{
$target_tables[]=$row[0];
}
如果($tables!==false)
{
$target\u tables=array\u intersect($target\u tables,$tables);
}
foreach($target_tables作为$table)
{
$result=$mysqli->query('SELECT*FROM'.$table');
$fields\u amount=$result->field\u count;
$rows\u num=$mysqli->受影响的\u行;
$res=$mysqli->query('SHOW CREATE TABLE'.$TABLE);
$TableMLine=$res->fetch_row();
$content=(!isset($content)?“”:$content)。“\n\n”。$TableMLine[1]。;\n\n”;
对于($i=0,$st\u counter=0;$i<$fields\u amount;$i++,$st\u counter=0)
{
而($row=$result->fetch_row())
{//启动时(以及每100个命令周期后):
如果($st|U计数器%100==0 |$$st|U计数器==0)
{
$content.=“\n插入“$table.”值中;
}
$content.=“\n(”;
因为($j=0;$j没关系,我自己想出来的
这将添加事件和表,触发器/存储过程应以类似的方式工作:
function Export_Database($host,$user,$pass,$name,$tables=false,$backup_name=false){
$mysqli = new mysqli($host,$user,$pass,$name);
$mysqli->select_db($name);
$mysqli->query("SET NAMES 'utf8'");
$queryTables = $mysqli->query("SHOW TABLES");
while($row = $queryTables->fetch_row()){
$target_tables[] = $row['0']; //put each table name into array
}
if($tables){
$target_tables = array_intersect($target_tables, $tables);
}
foreach($target_tables as $table){
$result = $mysqli->query('SELECT * FROM '.$table);
$fields_amount = $result->field_count;
$rows_num = $mysqli->affected_rows;
$res = $mysqli->query('SHOW CREATE TABLE '.$table);
$TableMLine = $res->fetch_row();
$content = (!isset($content) ? '' : $content) . "\n\n".$TableMLine[1].";\n\n";
for ($i = 0, $st_counter = 0; $i < $fields_amount; $i++, $st_counter=0){
while($row = $result->fetch_row()){
//when started (and every after 100 command cycle):
if ($st_counter%100 == 0 || $st_counter == 0 ){
$content .= "\nINSERT INTO ".$table." VALUES";
}
$content .= "\n(";
for($j=0; $j<$fields_amount; $j++){
$row[$j] = str_replace("\n","\\n", addslashes($row[$j]) );
if (isset($row[$j])){
$content .= '"'.$row[$j].'"' ;
} else {
$content .= '""';
}
if ($j<($fields_amount-1)){
$content.= ',';
}
}
$content .=")";
//every after 100 command cycle [or at last line] ....p.s. but should be inserted 1 cycle eariler
if ( (($st_counter+1)%100==0 && $st_counter!=0) || $st_counter+1==$rows_num){
$content .= ";";
} else {
$content .= ",";
}
$st_counter=$st_counter+1;
}
} $content .="\n\n\n";
}
$events = $mysqli->query("SHOW EVENTS");
while($events && ($row = $events->fetch_row())){
$res = $mysqli->query("SHOW CREATE EVENT ".$row[0].'.'.$row[1]);
$TableMLine = $res->fetch_row();
$content .= "\n\n".$TableMLine[3].";\n\n";
}
$backup_name = $backup_name ? $backup_name : $name.".sql";
header('Content-Type: application/octet-stream');
header("Content-Transfer-Encoding: Binary");
header("Content-disposition: attachment; filename=\"".$backup_name."\"");
echo $content; exit;
}
函数导出\u数据库($host、$user、$pass、$name、$tables=false、$backup\u name=false){
$mysqli=newmysqli($host、$user、$pass、$name);
$mysqli->select_db($name);
$mysqli->query(“设置名称‘utf8’”);
$queryTables=$mysqli->query(“显示表”);
而($row=$queryTables->fetch_row()){
$target_tables[]=$row['0'];//将每个表名放入数组中
}
若有($表){
$target\u tables=array\u intersect($target\u tables,$tables);
}
foreach($target_tables作为$table){
$result=$mysqli->query('SELECT*FROM'.$table');
$fields\u amount=$result->field\u count;
$rows\u num=$mysqli->受影响的\u行;
$res=$mysqli->query('SHOW CREATE TABLE'.$TABLE);
$TableMLine=$res->fetch_row();
$content=(!isset($content)?“”:$content)。“\n\n”。$TableMLine[1]。;\n\n”;
对于($i=0,$st\u counter=0;$i<$fields\u amount;$i++,$st\u counter=0){
而($row=$result->fetch_row()){
//启动时(以及每100个命令周期后):
如果($st|U计数器%100==0 |$$st|U计数器==0){
$content.=“\n插入“$table.”值中;
}
$content.=“\n(”;
对于($j=0;$jfetch_row())){
$res=$mysqli->query(“显示创建事件”。$row[0].$row[1]);
$TableMLine=$res->fetch_row();
$content.=“\n\n”。$TableMLine[3]。;\n\n”;
}
$backup\u name=$backup\u name?$backup\u name:$name.“.sql”;
标题(“内容类型:应用程序/八位字节流”);
标题(“内容传输编码:二进制”);
标题(“内容处置:附件;文件名=\”.$backup\u name.\”;
echo$内容;退出;
}
将其更改为适合无事件的数据库