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Backup MySQL schema and data from PHP
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| <?php | |
| $DBHOST = 'localhost'; | |
| $DBNAME = 'test'; | |
| $DBUSER = 'username'; | |
| $DBPASS = 'password'; | |
| $compression = TRUE; | |
| $dst_dir = '/tmp'; | |
| $DBH = new PDO("mysql:host=".$DBHOST.";dbname=".$DBNAME."; charset=utf8", $DBUSER, $DBPASS); | |
| if(is_null($DBH) || $DBH===FALSE) | |
| { | |
| die('ERROR'); | |
| } | |
| $DBH->setAttribute(PDO::ATTR_ORACLE_NULLS, PDO::NULL_NATURAL ); | |
| $fileName = 'backup-db-' . date('d-m-Y_h:i:s'); | |
| //create/open files | |
| if ($compression) | |
| { | |
| $fileName .= '.sql.gz'; | |
| $zp = gzopen($dst_dir.'/'.$fileName, "a9"); | |
| } | |
| else | |
| { | |
| $fileName .= '.sql'; | |
| $handle = fopen($dst_dir.'/'.$fileName,'a+'); | |
| } | |
| //array of all database field types which just take numbers | |
| $numtypes=array('tinyint','smallint','mediumint','int','bigint','float','double','decimal','real'); | |
| //get all of the tables | |
| if(empty($tables)) | |
| { | |
| $pstm1 = $DBH->query('SHOW TABLES'); | |
| while ($row = $pstm1->fetch(PDO::FETCH_NUM)) | |
| { | |
| $tables[] = $row[0]; | |
| } | |
| } | |
| else | |
| { | |
| $tables = is_array($tables) ? $tables : explode(',',$tables); | |
| } | |
| //cycle through the table(s) | |
| foreach($tables as $table) | |
| { | |
| $result = $DBH->query("SELECT * FROM $table"); | |
| $num_fields = $result->columnCount(); | |
| $num_rows = $result->rowCount(); | |
| $return=""; | |
| //uncomment below if you want 'DROP TABLE IF EXISTS' displayed | |
| //$return.= 'DROP TABLE IF EXISTS `'.$table.'`;'; | |
| //table structure | |
| $pstm2 = $DBH->query("SHOW CREATE TABLE $table"); | |
| $row2 = $pstm2->fetch(PDO::FETCH_NUM); | |
| $ifnotexists = str_replace('CREATE TABLE', 'CREATE TABLE IF NOT EXISTS', $row2[1]); | |
| $return.= "\n\n".$ifnotexists.";\n\n"; | |
| if ($compression) | |
| { | |
| gzwrite($zp, $return); | |
| } | |
| else | |
| { | |
| fwrite($handle,$return); | |
| } | |
| $return = ""; | |
| //insert values | |
| if ($num_rows) | |
| { | |
| $return= 'INSERT INTO `'."$table"."` ("; | |
| $pstm3 = $DBH->query("SHOW COLUMNS FROM $table"); | |
| $count = 0; | |
| $type = array(); | |
| while ($rows = $pstm3->fetch(PDO::FETCH_NUM)) | |
| { | |
| if (stripos($rows[1], '(')) | |
| { | |
| $type[$table][] = stristr($rows[1], '(', true); | |
| } | |
| else | |
| { | |
| $type[$table][] = $rows[1]; | |
| } | |
| $return.= "`".$rows[0]."`"; | |
| $count++; | |
| if ($count < ($pstm3->rowCount())) | |
| { | |
| $return.= ", "; | |
| } | |
| } | |
| $return.= ")".' VALUES'; | |
| if ($compression) | |
| { | |
| gzwrite($zp, $return); | |
| } | |
| else | |
| { | |
| fwrite($handle,$return); | |
| } | |
| $return = ""; | |
| } | |
| $count =0; | |
| while($row = $result->fetch(PDO::FETCH_NUM)) | |
| { | |
| $return= "\n("; | |
| for($j=0; $j<$num_fields; $j++) | |
| { | |
| if (isset($row[$j])) | |
| { | |
| //if number, take away "". else leave as string | |
| if ((in_array($type[$table][$j], $numtypes)) && $row[$j]!=='') | |
| { | |
| $return.= $row[$j]; | |
| } | |
| else | |
| { | |
| $return.= $DBH->quote($row[$j]); | |
| } | |
| } | |
| else | |
| { | |
| $return.= 'NULL'; | |
| } | |
| if ($j<($num_fields-1)) | |
| { | |
| $return.= ','; | |
| } | |
| } | |
| $count++; | |
| if ($count < ($result->rowCount())) | |
| { | |
| $return.= "),"; | |
| } | |
| else | |
| { | |
| $return.= ");"; | |
| } | |
| if ($compression) | |
| { | |
| gzwrite($zp, $return); | |
| } | |
| else | |
| { | |
| fwrite($handle,$return); | |
| } | |
| $return = ""; | |
| } | |
| $return="\n\n-- ------------------------------------------------ \n\n"; | |
| if ($compression) | |
| { | |
| gzwrite($zp, $return); | |
| } | |
| else | |
| { | |
| fwrite($handle,$return); | |
| } | |
| $return = ""; | |
| } | |
| $error1= $pstm2->errorInfo(); | |
| $error2= $pstm3->errorInfo(); | |
| $error3= $result->errorInfo(); | |
| echo $error1[2]; | |
| echo $error2[2]; | |
| echo $error3[2]; | |
| $fileSize = 0; | |
| if ($compression) | |
| { | |
| gzclose($zp); | |
| $fileSize = filesize($dst_dir.'/'.$fileName); | |
| } | |
| else | |
| { | |
| fclose($handle); | |
| $fileSize = filesize($dst_dir.'/'.$fileName); | |
| } | |
| ?> |
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