如何通过MYSQL / PHP将.sql.gz文件导入我的数据库？ （不是命令行）

Question

I have a backup file (.sql.gz) and I want to import it to my empty database on localhost programmatically like how phpmyadmin does, inside a browser with php/mysql/javascript and not via command line. Since it's my localhost, security is not really a concern, I just want to automate a task I have to perform regularly when developing.

There are a bunch of questions here but they all deal with command line solution.

edit: I already have a xampp installation. But the whole procedure is tedious, I have to first delete the database, then recreate it and then import my data. I have to move b/w previous database backus fairly often. So I want to automate the process. I just give in the backup .sql.gz file via html form input and it does all of the above automatically.

Answer 1

I'd open it with gzfile , separate it on the query-delimiter and put it into mysqli::query

$file = implode('', gzfile($sqlFile)); // there doesn't exist a gz* function which reads it completely into a string?
$query = $substring_delimiter = "";
$last_was_backslash = false;
$outside_begin_end = true;
$delimiter = ';';
for ($i = 0; $i < strlen($file); $i++) {
    if ($i > 3 && !strcasecmp(substr($file, $i - 4, 5), "BEGIN") && !$substring_delimiter)
        $outside_begin_end = false;
    if (!$outside_begin_end && !strcasecmp(substr($file, $i - 2, 3), "END") && !$substring_delimiter)
        $outside_begin_end = true;
    if ($i > 7 && !strcasecmp(substr($file, $i - 8, 9), "DELIMITER") && trim($query) == '') {
        $delimiter = '';
        do {
            $delimiter .= $file[$i];
        } while (++$i < strlen($file) && $file[$i] != PHP_EOL)
        $delimiter = trim($delimiter);
    }
    if ($file[$i] == '\'' || $file[$i] == '"')
        if ($substring_delimiter) {
            if ($substring_delimiter == $file[$i] && !$last_was_backslash) 
                $substring_delimiter = "";
        } else {
            $substring_delimiter = $file[$i];
        }
    if ($outside_begin_end && !$substring_delimiter && !strcasecmp($delimiter, substr($file, $i))) {
        $sql->query($query); // where $sql is a mysqli instance
        $query = "";
    } else {
        $query .= $file[$i];
    }
    if ($file[$i] == '\\')
        $last_was_backslash = !$last_was_backslash;
    else
        $last_was_backslash = false;
}
if (trim($query) != "")
    $sql->query($query);

Answer 2

Comment from @MarcB is correct. Use PHP to call out to a shell process to load the SQL script.

Writing a PHP script to execute a backup script is a waste of time. You basically have to implement the mysql client in PHP.

The better solution is something like this:

shell_exec("gunzip -c $file_sql_gz | mysql --defaults-file=$my_cnf $database_name");

Where $my_cnf is the name of a my.cnf-like file that contains host, user, password to connect.

See also some of my past answers:

• Loading .sql files from within PHP
• Running MySQL *.sql files in PHP

---

Re your comment:

Refer to http://www.php.net/manual/en/features.file-upload.post-method.php
You can access the temp name of a file upload with $_FILES['userfile']['tmp_name'] .

Answer 3

我相信Sypex Dumper可以做到这一点。