forked from sillydong/MySQL_DB_Diff
/
MySQL_DB_Diff.php
603 lines (566 loc) · 24 KB
/
MySQL_DB_Diff.php
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<?php
/**
* Created by IntelliJ IDEA.
* User: chenzhidong
* Date: 13-10-21
* Time: 下午7:20
* Version: 1.0
*/
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');
if (isset($_POST['submit'])) {
if (isset($_POST['action']) && $_POST['action'] == 'diff') {
$new_host = trim($_POST['new_host']);
$new_user = trim($_POST['new_user']);
$new_pass = trim($_POST['new_pass']);
$new_db = trim($_POST['new_db']);
$old_host = trim($_POST['old_host']);
$old_user = trim($_POST['old_user']);
$old_pass = trim($_POST['old_pass']);
$old_db = trim($_POST['old_db']);
if (!empty($new_host) && !empty($new_user) && !empty($new_pass) && !empty($new_db) && !empty($old_host) && !empty($old_user) && !empty($old_pass) && !empty($old_db)) {
$new_errors = [];
$old_errors = [];
$new = get_db_detail($new_host, $new_user, $new_pass, $new_db, $new_errors);
$old = get_db_detail($old_host, $old_user, $old_pass, $old_db, $old_errors);
if (!empty($new_errors) || !empty($old_errors)) {
showform($_POST, array_merge($new_errors, $old_errors));
} else {
$diff = compare_database($new, $old);
if (empty($diff['table']) && empty($diff['field']) && empty($diff['index'])) {
showform($_POST, ['两个数据库结构完全相同，无可同步项目']);
} else {
$sqls = build_query($diff);
showdiff($old_host, $old_user, $old_pass, $old_db, $sqls);
}
}
} else {
showform($_POST, ['请补全新旧服务器连接信息']);
}
} elseif (isset($_POST['action']) && $_POST['action'] == 'write') {
$old_host = trim($_POST['old_host']);
$old_user = trim($_POST['old_user']);
$old_pass = trim($_POST['old_pass']);
$old_db = trim($_POST['old_db']);
$sqls = unserialize(trim(html_entity_decode($_POST['sqls'])));
if (!isset($_POST['keys'])) {
showdiff($old_host, $old_user, $old_pass, $old_db, $sqls, ['未选择执行的修改']);
} else {
$keys = $_POST['keys'];
if (!empty($old_host) && !empty($old_user) && !empty($old_pass) && !empty($old_db) && !empty($keys) && is_array($keys) && !empty($sqls) && is_array($sqls)) {
$errors = [];
$chosen = [];
foreach ($keys as $key) {
$chosen[] = $sqls[$key];
}
$result = update_db($old_host, $old_user, $old_pass, $old_db, $chosen, $errors);
if (!empty($errors)) {
showdiff($old_host, $old_user, $old_pass, $old_db, $sqls, $errors, $keys);
} else {
showform(null, ['同步成功']);
}
} else {
showdiff($old_host, $old_user, $old_pass, $old_db, $sqls);
}
}
} else {
showform($_POST);
}
} else {
showform();
}
function getheader($title)
{
echo <<<EOC
<html>
<head>
<title>$title —— MySQL_DB_Diff By 傻东</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">
body{background-color:#FFFFDD;}
textarea{width:300px;height:100px;}
.title{padding-top:20px;padding-bottom:35px;text-align:center;font-weight:bold;font-size:14px;}
/* .submit{margin:8px;font-weight:bold;font-size:13px;width:515px;text-align:right;} */
.note{margin:8px;font-weight:bold;font-size:13px;}
.red{color:red;}
.inside{padding:8px;}
.products-list{width:100%;}
.product{width:100%;padding:8px;border-top:1px solid black;}
.border_red{border: 1px solid red;}
.short{width:40px;}
.middle{width:120px;}
.long{width:360px;}
</style>
</head>
<body>
EOC;
}
function getfooter()
{
echo <<<EOD
</body>
</html>
EOD;
}
function showform($post = null, $errors = null)
{
getheader('同步数据库');
$error_html = '<div>';
if (!empty($errors)) {
foreach ($errors as $error) {
$error_html .= "<p class='red'>" . $error . '</p>';
}
}
$error_html .= '</div>';
$form_html = '
<div style="margin:20px 200px 30px 200px;">
<div class="title">同步数据库 —— MySQL_DB_Diff</div>
' . $error_html . '
<form method="POST">
<table width="100%" border="0" cellpadding="5" cellspacing="0">
<tr>
<td>新服务器地址:</td>
<td><input name="new_host" type="text" value="' . (isset($post['new_host']) ? $post['new_host'] : '') . '" size="50" autocomplete="off" /></td>
<td>旧服务器地址:</td>
<td><input name="old_host" type="text" value="' . (isset($post['old_host']) ? $post['old_host'] : '') . '" size="50" autocomplete="off" /></td>
</tr>
<tr>
<td>新服务器用户名:</td>
<td><input name="new_user" type="text" value="' . (isset($post['new_user']) ? $post['new_user'] : '') . '" size="50" autocomplete="off" /></td>
<td>旧服务器用户名:</td>
<td><input name="old_user" type="text" value="' . (isset($post['old_user']) ? $post['old_user'] : '') . '" size="50" autocomplete="off" /></td>
</tr>
<tr>
<td>新服务器密码:</td>
<td><input name="new_pass" type="password" value="' . (isset($post['new_pass']) ? $post['new_pass'] : '') . '" size="50" autocomplete="off" /></td>
<td>旧服务器密码:</td>
<td><input name="old_pass" type="password" value="' . (isset($post['old_pass']) ? $post['old_pass'] : '') . '" size="50" autocomplete="off" /></td>
</tr>
<tr>
<td>新服务器数据库名:</td>
<td><input name="new_db" type="text" value="' . (isset($post['new_db']) ? $post['new_db'] : '') . '" size="50" autocomplete="off" /></td>
<td>旧服务器数据库名:</td>
<td><input name="old_db" type="text" value="' . (isset($post['old_db']) ? $post['old_db'] : '') . '" size="50" autocomplete="off" /></td>
</tr>
<tr>
<td><input type="hidden" name="action" value="diff" /></td>
<td colspan="2" align="center"><input type="submit" name="submit" value="提交" /></td>
<td> </td>
</tr>
<tr>
<td colspan="4"><span class="red">注意:程序无法判断修改表名的情况，如果继续操作，会删除原表新建一张表，原来的数据全部丢失。<br /> 新指的是包含较新结构的数据库，一般为本地数据库，旧指的是未更新修改的数据库，一般为服务器上数据库。<br /> 数据库操作有风险，请审查生成的SQL语句后执行提交，发生任何问题责任自负。<br /><br />作者:傻东 <a href="http://sillydong.com" target="_blank">sillydong.com</a></span></td>
</tr>
</table>
</form>
</div>';
echo $form_html;
getfooter();
}
function showdiff($old_host, $old_user, $old_pass, $old_db, $sqls, $errors = [], $keys = [])
{
getheader('对比结果');
$table_html = '';
foreach ($sqls as $key => $sql) {
$table_html .= '<tr><td><input type="checkbox" name="keys[]" id="key_' . $key . '" value="' . $key . '"' . (in_array($key, $keys) ? 'checked="checked"' : '') . ' /></td><td><label for="key_' . $key . '">' . htmlentities($sql) . '</label></td></tr>';
}
$server_html = '<input type="hidden" name="old_host" value="' . $old_host . '" /><input type="hidden" name="old_user" value="' . $old_user . '" /><input type="hidden" name="old_pass" value="' . $old_pass . '" /><input type="hidden" name="old_db" value="' . $old_db . '"/>';
$error_html = '<div>';
if (!empty($errors)) {
foreach ($errors as $error) {
$error_html .= "<p class='red'>" . $error . '</p>';
}
}
$error_html .= '</div>';
$form_html = '
<div style="margin:20px 200px 30px 200px;">
<div class="title">对比结果 —— MySQL_DB_Diff </div>
' . $error_html . '
<p>共' . count($sqls) . '条</p>
<form method="POST">
<table width="100%" border="0" cellpadding="5" cellspacing="0">
' . $table_html . '
<tr>
<td><input type="hidden" name="action" value="write" /><input type="hidden" name="sqls" value="' . htmlentities(serialize($sqls)) . '" />' . $server_html . '</td>
<td><input type="submit" name="submit" value="提交" onclick="return confirm(\'确认要执行指定SQL吗?\')"/></td>
</tr>
</table>
</form>
</div>';
echo $form_html;
getfooter();
}
function compare_database($new, $old)
{
$diff = ['table' => [], 'field' => [], 'index' => []];
//table
foreach ($old['table'] as $table_name => $table_detail) {
if (!isset($new['table'][$table_name])) {
$diff['table']['drop'][$table_name] = $table_name;
} //删除表
}
foreach ($new['table'] as $table_name => $table_detail) {
if (!isset($old['table'][$table_name])) {
//新建表
$diff['table']['create'][$table_name] = $table_detail;
$diff['field']['create'][$table_name] = $new['field'][$table_name];
$diff['index']['create'][$table_name] = $new['index'][$table_name];
} else {
//对比表
$old_detail = $old['table'][$table_name];
$change = [];
if ($table_detail['Engine'] !== $old_detail['Engine']) {
$change['Engine'] = $table_detail['Engine'];
}
if ($table_detail['Row_format'] !== $old_detail['Row_format']) {
$change['Row_format'] = $table_detail['Row_format'];
}
if ($table_detail['Collation'] !== $old_detail['Collation']) {
$change['Collation'] = $table_detail['Collation'];
}
//if($table_detail['Create_options']!=$old_detail['Create_options'])
// $change['Create_options']=$table_detail['Create_options'];
if ($table_detail['Comment'] !== $old_detail['Comment']) {
$change['Comment'] = $table_detail['Comment'];
}
if (!empty($change)) {
$diff['table']['change'][$table_name] = $change;
}
}
}
//index
foreach ($old['index'] as $table => $indexs) {
if (isset($new['index'][$table])) {
$new_indexs = $new['index'][$table];
foreach ($indexs as $index_name => $index_detail) {
if (!isset($new_indexs[$index_name])) {
//索引不存在，删除索引
$diff['index']['drop'][$table][$index_name] = $index_name;
}
}
} else {
if (!isset($diff['table']['drop'][$table])) {
foreach ($indexs as $index_name => $index_detail) {
$diff['index']['drop'][$table][$index_name] = $index_name;
}
}
}
}
foreach ($new['index'] as $table => $indexs) {
if (isset($old['index'][$table])) {
$old_indexs = $old['index'][$table];
foreach ($indexs as $index_name => $index_detail) {
if (isset($old_indexs[$index_name])) {
//存在，对比内容
if ($index_detail['Non_unique'] !== $old_indexs[$index_name]['Non_unique'] || $index_detail['Column_name'] !== $old_indexs[$index_name]['Column_name'] || $index_detail['Collation'] !== $old_indexs[$index_name]['Collation'] || $index_detail['Index_type'] !== $old_indexs[$index_name]['Index_type']) {
$diff['index']['drop'][$table][$index_name] = $index_name;
$diff['index']['add'][$table][$index_name] = $index_detail;
}
} else {
//不存在，新建索引
$diff['index']['add'][$table][$index_name] = $index_detail;
}
}
} else {
if (!isset($diff['table']['create'][$table])) {
foreach ($indexs as $index_name => $index_detail) {
$diff['index']['add'][$table][$index_name] = $index_detail;
}
}
}
}
//fields
foreach ($old['field'] as $table => $fields) {
if (isset($new['field'][$table])) {
$new_fields = $new['field'][$table];
foreach ($fields as $field_name => $field_detail) {
if (!isset($new_fields[$field_name])) {
//字段不存在，删除字段
$diff['field']['drop'][$table][$field_name] = $field_detail;
}
}
} else {
//旧数据库中的表在新数据库中不存在，需要删除
}
}
foreach ($new['field'] as $table => $fields) {
if (isset($old['field'][$table])) {
$old_fields = $old['field'][$table];
$last_field = '';
foreach ($fields as $field_name => $field_detail) {
if (isset($old_fields[$field_name])) {
//字段存在，对比内容
if ($field_detail['Type'] !== $old_fields[$field_name]['Type'] || $field_detail['Collation'] !== $old_fields[$field_name]['Collation'] || $field_detail['Null'] !== $old_fields[$field_name]['Null'] || $field_detail['Default'] !== $old_fields[$field_name]['Default'] || $field_detail['Extra'] !== $old_fields[$field_name]['Extra'] || $field_detail['Comment'] !== $old_fields[$field_name]['Comment']) {
$diff['field']['change'][$table][$field_name] = $field_detail;
}
} else {
//字段不存在，添加字段
$field_detail['After'] = $last_field;
$diff['field']['add'][$table][$field_name] = $field_detail;
}
$last_field = $field_name;
}
} else {
//新数据库中的表在旧数据库中不存在，需要新建
}
}
return $diff;
}
function get_db_detail($server, $username, $password, $database, &$errors = [])
{
$connection = @mysqli_connect($server, $username, $password);
if ($connection === false) {
$errors[] = '无法连接服务器:' . $server . ':' . $username . ':' . $password . ':' . $database;
return false;
}
$serverset = 'character_set_connection=utf8, character_set_results=utf8, character_set_client=binary';
$serverset .= @mysqli_get_server_info($connection) > '5.0.1' ? ', sql_mode=\'\'' : '';
@mysqli_query($connection, "SET $serverset");
if (!@mysqli_select_db($connection, $database)) {
$errors[] = '无法使用数据库:' . $database;
@mysqli_close($connection);
return false;
}
$detail = ['table' => [], 'field' => [], 'index' => []];
$tables = query($connection, 'show table status');
if ($tables) {
foreach ($tables as $key_table => $table) {
$detail['table'][$table['Name']] = $table;
//字段
$fields = query($connection, 'show full fields from `' . $table['Name'] . '`');
if ($fields) {
foreach ($fields as $key_field => $field) {
$fields[$field['Field']] = $field;
unset($fields[$key_field]);
}
$detail['field'][$table['Name']] = $fields;
} else {
$errors[] = '无法获得表的字段:' . $database . ':' . $table['Name'];
}
//索引
$indexes = query($connection, 'show index from `' . $table['Name'] . '`');
if ($indexes) {
foreach ($indexes as $key_index => $index) {
if (!isset($indexes[$index['Key_name']])) {
$index['Column_name'] = [$index['Seq_in_index'] => $index['Column_name']];
$indexes[$index['Key_name']] = $index;
} else {
$indexes[$index['Key_name']]['Column_name'][$index['Seq_in_index']] = $index['Column_name'];
}
unset($indexes[$key_index]);
}
$detail['index'][$table['Name']] = $indexes;
} else {
//$errors[]='无法获得表的索引信息:'.$database.':'.$table['Name'];
$detail['index'][$table['Name']] = [];
}
}
@mysqli_close($connection);
return $detail;
} else {
$errors[] = '无法获得数据库的表详情:' . $database;
@mysqli_close($connection);
return false;
}
}
function update_db($server, $username, $password, $database, $sqls, &$errors = [])
{
$connection = @mysqli_connect($server, $username, $password);
if ($connection === false) {
$errors[] = '无法连接服务器:' . $server . ':' . $username . ':' . $password . ':' . $database;
return false;
}
$serverset = 'character_set_connection=utf8, character_set_results=utf8, character_set_client=binary';
$serverset .= @mysqli_get_server_info($connection) > '5.0.1' ? ', sql_mode=\'\'' : '';
@mysqli_query($connection, "SET $serverset");
if (!@mysqli_select_db($connection, $database)) {
$errors[] = '无法使用数据库:' . $database;
@mysqli_close($connection);
return false;
}
$result = true;
foreach ($sqls as $sql) {
$result &= execute($connection, $sql, $errors);
}
return $result;
}
function query($connection, $sql)
{
if ($connection) {
$result = @mysqli_query($connection, $sql);
if ($result) {
$result_a = [];
while ($row = @mysqli_fetch_assoc($result)) {
$result_a[] = $row;
}
return $result_a;
}
}
return false;
}
function execute($connection, $sql, &$errors)
{
if ($connection) {
$result = @mysqli_query($connection, $sql);
if ($result) {
return true;
}
$errors[] = @mysqli_error($connection);
}
return false;
}
function build_query($diff)
{
$sqls = [];
if ($diff) {
if (isset($diff['table']['drop'])) {
foreach ($diff['table']['drop'] as $table_name => $table_detail) {
$sqls[] = "DROP TABLE `{$table_name}`";
}
}
if (isset($diff['table']['create'])) {
foreach ($diff['table']['create'] as $table_name => $table_detail) {
$fields = $diff['field']['create'][$table_name];
$sql = "CREATE TABLE `$table_name` (";
$t = [];
$k = [];
foreach ($fields as $field) {
$t[] = "`{$field['Field']}` " . strtoupper($field['Type']) . sqlnull($field['Null']) . sqldefault($field['Default']) . sqlextra($field['Extra']) . sqlcomment($field['Comment']);
}
if (isset($diff['index']['create'][$table_name]) && !empty($diff['index']['create'][$table_name])) {
$indexs = $diff['index']['create'][$table_name];
foreach ($indexs as $index_name => $index_detail) {
if ($index_name == 'PRIMARY') {
$k[] = 'PRIMARY KEY (`' . implode('`,`', $index_detail['Column_name']) . '`)';
} else {
$k[] = ($index_detail['Non_unique'] == 0 ? 'UNIQUE' : 'INDEX') . "`$index_name`" . ' (`' . implode('`,`', $index_detail['Column_name']) . '`)';
}
}
}
list($charset) = explode('_', $table_detail['Collation']);
$sql .= implode(', ', $t) . (!empty($k) ? ',' . implode(', ', $k) : '') . ') ENGINE = ' . $table_detail['Engine'] . ' DEFAULT CHARSET = ' . $charset;
$sqls[] = $sql;
}
}
if (isset($diff['table']['change'])) {
foreach ($diff['table']['change'] as $table_name => $table_changes) {
if (!empty($table_changes)) {
$sql = "ALTER TABLE `$table_name`";
foreach ($table_changes as $option => $value) {
if ($option == 'Collation') {
list($charset) = explode('_', $value);
$sql .= " DEFAULT CHARACTER SET $charset COLLATE $value";
} else {
$sql .= ' ' . strtoupper($option) . " = $value ";
}
}
$sqls[] = $sql;
}
}
}
if (isset($diff['index']['drop'])) {
foreach ($diff['index']['drop'] as $table_name => $indexs) {
foreach ($indexs as $index_name => $index_detail) {
if ($index_name == 'PRIMARY') {
$sqls[] = "ALTER TABLE `$table_name` DROP PRIMARY KEY";
} else {
$sqls[] = "ALTER TABLE `$table_name` DROP INDEX `$index_name`";
}
}
}
}
if (isset($diff['field']['drop'])) {
foreach ($diff['field']['drop'] as $table_name => $fields) {
foreach ($fields as $field_name => $field_detail) {
$sqls[] = "ALTER TABLE `$table_name` DROP `$field_name`";
}
}
}
if (isset($diff['field']['add'])) {
foreach ($diff['field']['add'] as $table_name => $fields) {
foreach ($fields as $field_name => $field_detail) {
$sqls[] = "ALTER TABLE `$table_name` ADD `{$field_name}` " . strtoupper($field_detail['Type']) . sqlcol($field_detail['Collation']) . sqlnull($field_detail['Null']) . sqldefault($field_detail['Default']) . sqlextra($field_detail['Extra']) . sqlcomment($field_detail['Comment']) . " AFTER `{$field_detail['After']}`";
}
}
}
if (isset($diff['index']['add'])) {
foreach ($diff['index']['add'] as $table_name => $indexs) {
foreach ($indexs as $index_name => $index_detail) {
if ($index_name == 'PRIMARY') {
$sqls[] = "ALTER TABLE `$table_name` ADD PRIMARY KEY (`" . implode('`,`', $index_detail['Column_name']) . '`)';
} else {
$sqls[] = "ALTER TABLE `$table_name` ADD" . ($index_detail['Non_unique'] == 0 ? ' UNIQUE ' : ' INDEX ') . "`$index_name`" . ' (`' . implode('`,`', $index_detail['Column_name']) . '`)';
}
}
}
}
if (isset($diff['field']['change'])) {
foreach ($diff['field']['change'] as $table_name => $fields) {
foreach ($fields as $field_name => $field_detail) {
$sqls[] = "ALTER TABLE `$table_name` CHANGE `{$field_name}` `{$field_name}` " . strtoupper($field_detail['Type']) . sqlcol($field_detail['Collation']) . sqlnull($field_detail['Null']) . sqldefault($field_detail['Default']) . sqlextra($field_detail['Extra']) . sqlcomment($field_detail['Comment']);
}
}
}
}
return $sqls;
}
function sqlkey($val)
{
switch ($val) {
case 'PRI':
return ' PRIMARY';
case 'UNI':
return ' UNIQUE';
case 'MUL':
return ' INDEX';
default:
return '';
}
}
function sqlcol($val)
{
switch ($val) {
case null:
return '';
default:
list($charset) = explode('_', $val);
return ' CHARACTER SET ' . $charset . ' COLLATE ' . $val;
}
}
function sqldefault($val)
{
if ($val === null) {
return '';
} else {
return " DEFAULT '" . stripslashes($val) . "'";
}
}
function sqlnull($val)
{
switch ($val) {
case 'NO':
return ' NOT NULL';
case 'YES':
return ' NULL';
default:
return '';
}
}
function sqlextra($val)
{
switch ($val) {
case '':
return '';
default:
return ' ' . strtoupper($val);
}
}
function sqlcomment($val)
{
switch ($val) {
case '':
return '';
default:
return " COMMENT '" . stripslashes($val) . "'";
}
}