103 lines
2.8 KiB
PHP
103 lines
2.8 KiB
PHP
<?php
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namespace Shikiryu\Backup\Backup;
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class Mysql extends BackupAbstract
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{
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/**
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* @var $pdo \PDO
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*/
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private $pdo;
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protected $tables;
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protected $host;
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protected $db;
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protected $login;
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protected $pwd;
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/**
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* @param array $config
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*/
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public function __construct(array $config = array()) {
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parent::__construct($config);
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$this->pdo = new \PDO('mysql:host='.$this->host.';dbname='.$this->db, $this->login, $this->pwd);
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empty($this->tables) || $this->tables == '*' ? $this->everything() : $this->fromTables($this->tables);
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}
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/**
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* @param array $tables
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* @return $this|string
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*/
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public function fromTables($tables = array())
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{
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if(!empty($tables)) {
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$this->tables = $tables;
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}
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$this->_streamsToBackup[sprintf('db-%s.sql', $this->db)] = $this->getFromTables();
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return $this;
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}
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/**
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* set the list of table to backup to all tables
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*
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* @return $this
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*/
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public function everything() {
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$this->tables = array();
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foreach($this->pdo->query('SHOW TABLES') as $table) {
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$this->tables[] = $table;
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}
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$this->_streamsToBackup[sprintf('db-%s.sql', $this->db)] = $this->getFromTables();
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return $this;
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}
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/**
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* @return string
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*/
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private function getFromTables()
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{
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$return = "";
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foreach ($this->tables as $table) {
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if(is_array($table)) {
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$table = $table[0];
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}
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$result = $this->pdo->prepare('SELECT * FROM ' . $table);
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$result->execute();
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$num_fields = $result->columnCount();
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$return .= 'DROP TABLE IF EXISTS ' . $table . ';';
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$result2 = $this->pdo->prepare('SHOW CREATE TABLE ' . $table);
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$result2->execute();
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$row2 = $result2->fetch();
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$return.= "\n\n" . $row2[1] . ";\n\n";
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foreach($result as $i=>$row){
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$return.= 'INSERT INTO ' . $table . ' VALUES(';
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for ($j = 0; $j < $num_fields; $j++) {
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$row[$j] = addslashes($row[$j]);
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// $row[$j] = preg_replace("\n", "\\n", $row[$j]);
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if (isset($row[$j])) {
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$return.= '"' . $row[$j] . '"';
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} else {
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$return.= '""';
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}
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if ($j < ($num_fields - 1)) {
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$return.= ',';
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}
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}
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$return.= ");\n";
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}
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$return.="\n\n\n";
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}
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return $return;
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}
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/**
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* @return bool
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*/
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public function isValid()
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{
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return !empty($this->_streamsToBackup);
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}
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}
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?>
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