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Editorial Team
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Asked: 2026-06-07T22:22:25+00:00

I want to setup a button in my content management system where I can

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I want to setup a button in my content management system where I can save a backup sql file for the table shown on a particular page. I just want it to download the SQL file to my computer if this is possible. I also wanted to know if it’s possible to do the same thing but export as an excel file of the table data.

If it’s easier to just do a backup of the whole database I’d settle for that, I just need to know if it’s possible and what it is I’m looking for to build the script.

Hopefully this makes sense, I’m struggling to know what I need to look for as I don’t know if it’s actually possible. I’m coding in php.

Thanks in advance.

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1 Answer

  1. Editorial Team

    Here’s a small page enabling you to :

    • check the tables you want
    • download them
    • or write them on disk (server side)

    BUT

    you shouldn’t do that if you care about security.

    If you want to do this kind of manipulation I recommend you to use phpMyAdmin instead.

    And if you just want to do automatic backups without downloading, you’d better use cron and the mysqldump command. Cron is configured on many servers to do a backup every night.

    Look at this :

    http://www.comentum.com/mysqldump-cron.html

    http://www.noupe.com/how-tos/10-ways-to-automatically-manually-backup-mysql-database.html

    Well. Here’s the PHP page :

    <?

$db_base="set_your_base";
$db=mysql_connect("xxxx","xxxx","xxxx")
or die ("unable to connect");
$select_base=mysql_selectdb($db_base,$db);


function get_para_value($name, $default_value) {
    global $HTTP_GET_VARS, $HTTP_POST_VARS, $_GET, $_POST;
    if( isset($_GET[$name])) {
        return $_GET[$name];
    }
    if( isset($_POST[$name])) {
        return $_POST[$name];
    }
    return $default_value;
}


$action=get_para_value('action', 'ask');

if ($action=='ask') {
    ?>
    <html>
    <body>
    <SCRIPT LANGUAGE="JavaScript">
    var checkflag = "false";
    function check(form) {
        var objCheckBoxes = form.elements;
        if (checkflag == "false") {
            for (i = 0; i < objCheckBoxes.length; i++) {
                objCheckBoxes[i].checked = true;
            }
            checkflag = "true";
            return "Uncheck all";
        } else {
            for (i = 0; i < objCheckBoxes.length; i++) {
                objCheckBoxes[i].checked = false;
            }
            checkflag = "false";
            return "Check all";
        }
    }
    </script>

    <center>

    <form name=dump_form action=dump_dys.php method="post" enctype="multipart/form-data" accept-charset="utf-8">
    <br>
    Choose the tables you want:
    <br>
    <br>
    <input type=button value="Check all" onClick="this.value=check(this.form)">
    <br>
    <br>
    <table>
    <?php
    $sql_tables = "SHOW TABLES";
    $req_tables = mysql_query($sql_tables);
    while (list($table) = mysql_fetch_row($req_tables)) {
        echo "<tr><td><input type=checkbox name=".$table."> ".$table."</td></tr>";
    }
    ?>
    </table>
    <input type=hidden name=action value=dump>
    <br>
    <input type=button value="Download" onClick="this.form.action.value='dump';this.form.submit();">
    &nbsp; <input type=button value="Write on server" onClick="this.form.action.value='dump_to_disk';this.form.submit();">
    </form>
    </center>
    </body>
    </html>
    <?php
} else if ($action=='dump') {
    header("Content-type: application/octet-stream");
    header("Content-Disposition: attachment;filename=\"$db_base.sql\"");
    header("Content-Transfer-Encoding: binary");
    echo "--\n";
    echo "-- Dump of database $db_base\n";
    echo "--\n";
    $sql_tables = "SHOW TABLES";
    $req_tables = mysql_query($sql_tables);
    while (list($table) = mysql_fetch_row($req_tables)) {
        if (get_para_value($table,'no')=='no') continue;
        echo "\n--\n-- Table $table\n\n";
        echo "DROP TABLE IF EXISTS $table;\n";
        $sql_create_table = "SHOW CREATE TABLE $table";
        $req_create_table = mysql_query($sql_create_table);
        $create_table = mysql_fetch_array($req_create_table);
        echo $create_table[1].";\n";
        echo "\n--\n-- Filling de $table\n\n";
        $sql_fill_table = "SELECT * FROM $table";
        $req_fill_table = mysql_query($sql_fill_table);
        while ($row = mysql_fetch_assoc($req_fill_table)) {
        $line_insert = "INSERT INTO $table (";
        $l_value = ") VALUES (";
        foreach ($row as $field => $value) {
            $line_insert .= "`$field`, ";
            $l_value .= "'".mysql_real_escape_string($value)."', ";
        }
        $line_insert = substr($line_insert, 0, -2);
        $l_value = substr($l_value, 0, -2);
        echo $line_insert.$l_value.");\n";
       }
    }

    echo "--\n";
    echo "-- Dump of base $db_base finished )\n";
    echo "--\n";
} else if ($action=='dump_to_disk') {
    $file = fopen($db_base.".sql", 'w') or die('bug!');
    fwrite($file, "--\n");
    fwrite($file,  "-- Dump of the base $db_base\n");
    fwrite($file,  "--\n");
    $sql_tables = "SHOW TABLES";
    $req_tables = mysql_query($sql_tables);
    while (list($table) = mysql_fetch_row($req_tables)) {
        if (get_para_value($table,'no')=='no') continue;
        fwrite($file,  "\n--\n-- Table $table\n\n");
        fwrite($file,  "DROP TABLE IF EXISTS $table;\n");
        $sql_create_table = "SHOW CREATE TABLE $table";
        $req_create_table = mysql_query($sql_create_table);
        $create_table = mysql_fetch_array($req_create_table);
        fwrite($file,  $create_table[1].";\n");
        fwrite($file,  "\n--\n-- Remplissage de $table\n\n");
        $sql_fill_table = "SELECT * FROM $table";
        $req_fill_table = mysql_query($sql_fill_table);
        while ($row = mysql_fetch_assoc($req_fill_table)) {
        $line_insert = "INSERT INTO $table (";
        $l_value = ") VALUES (";
        foreach ($row as $field => $value) {
            $line_insert .= "`$field`, ";
            $l_value .= "'".mysql_real_escape_string($value)."', ";
        }
        $line_insert = substr($line_insert, 0, -2);
        $l_value = substr($l_value, 0, -2);
        fwrite($file,  $line_insert.$l_value.");\n");
       }
    }
    fwrite($file, "--\n");
    fwrite($file, "-- Dump of base $db_base finished (not even a crash!)\n");
    fwrite($file, "--\n");
    fclose($file);
    echo "dump done";
}
?>
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