Schema Diff: Show difference between MySQL databases

2.0.1 2023-10-16 16:03 UTC

This package is auto-updated.

Last update: 2024-07-01 00:14:17 UTC



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MySQL Schema Diff, a Symfony Console tool for displaying differeance between two schemas. This can be useful by showing differences between production and development. It's then up to the developer to create some kind of migration scripts.


Via Composer

Single project

$ composer require phlib/schemadiff


$ composer global require phlib/schemadiff

Command Line Usage

If you install schemadiff globally

And add this to your PATH in your ~/.bash_profile

export PATH=~/.composer/vendor/bin:$PATH

Then you can run schemadiff like this

$ schemadiff --help
$ schemadiff h=,u=user,p=pass,D=db1 h=,u=user,p=pass,D=db2

Otherwise run it from your project

$ ./vendor/bin/schemadiff --help
$ ./vendor/bin/schemadiff h=,u=user,p=pass,D=db1 h=,u=user,p=pass,D=db2

PHP Usage


$pdo = new \PDO('mysql:...', $username, $password);
$schemaInfo1 = \Phlib\SchemaDiff\SchemaInfoFactory::fromPdo($pdo, 'db1');
$schemaInfo2 = \Phlib\SchemaDiff\SchemaInfoFactory::fromPdo($pdo, 'db2');

$schemaDiff = new \Phlib\SchemaDiff\SchemaDiff(
    new Symfony\Component\Console\Output\StreamOutput(STDOUT)
$different = $schemaDiff->diff($schemaInfo1, $schemaInfo2);

exit($different ? 1 : 0);

Example Ouput

Output shows difference between the schemas. Example 1

As the database names could be the same on different hosts, the DSN position is included. Example 2

Testing different copies match a tempalte database. Example 3


This package is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see