Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
<?php
function backup_mysql_database($options){
$mtables = array(); $contents = "-- Database: `".$options['db_to_backup']."` --\n";
$mysqli = new mysqli($options['db_host'], $options['db_uname'], $options['db_password'], $options['db_to_backup']);
if ($mysqli->connect_error) {
die('Error : ('. $mysqli->connect_errno .') '. $mysqli->connect_error);
}
$results = $mysqli->query("SHOW TABLES");
while($row = $results->fetch_array()){
if (!in_array($row[0], $options['db_exclude_tables'])){
$mtables[] = $row[0];
}
}
foreach($mtables as $table){
$contents .= "-- Table `".$table."` --\n";
$results = $mysqli->query("SHOW CREATE TABLE ".$table);
while($row = $results->fetch_array()){
$contents .= $row[1].";\n\n";
}
$results = $mysqli->query("SELECT * FROM ".$table);
$row_count = $results->num_rows;
$fields = $results->fetch_fields();
$fields_count = count($fields);
$insert_head = "INSERT INTO `".$table."` (";
for($i=0; $i < $fields_count; $i++){
$insert_head .= "`".$fields[$i]->name."`";
if($i < $fields_count-1){
$insert_head .= ', ';
}
}
$insert_head .= ")";
$insert_head .= " VALUES\n";
if($row_count>0){
$r = 0;
while($row = $results->fetch_array()){
if(($r % 400) == 0){
$contents .= $insert_head;
}
$contents .= "(";
for($i=0; $i < $fields_count; $i++){
$row_content = str_replace("\n","\\n",$mysqli->real_escape_string($row[$i]));
switch($fields[$i]->type){
case 8: case 3:
$contents .= $row_content;
break;
default:
$contents .= "'". $row_content ."'";
}
if($i < $fields_count-1){
$contents .= ', ';
}
}
if(($r+1) == $row_count || ($r % 400) == 399){
$contents .= ");\n\n";
}else{
$contents .= "),\n";
}
$r++;
}
}
}
if (!is_dir ( $options['db_backup_path'] )) {
mkdir ( $options['db_backup_path'], 0777, true );
}
$backup_file_name = $options['db_to_backup'] . "sql-backup-" . date( "d-m-Y--h-i-s").".sql";
$fp = fopen($backup_file_name ,'w+');
if (($result = fwrite($fp, $contents))) {
echo "Backup file created '--$backup_file_name' ($result)";
}
fclose($fp);
return $backup_file_name;
}
$options = array(
'db_host'=> 'localhost', //mysql host
'db_uname' => 'mysql_user_name', //user
'db_password' => 'mysql_user_pass', //pass
'db_to_backup' => 'db_name', //database name
'db_backup_path' => '/htdocs', //where to backup
'db_exclude_tables' => array('table1','table2') //tables to exclude
);
$backup_file_name=backup_mysql_database($options);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
You can’t perform that action at this time.