xp-forge / sql-parser
SQL Parser
v0.4.0
2024-03-24 13:26 UTC
Requires
- php: >=7.0.0
- xp-framework/core: ^12.0 | ^11.0 | ^10.2
Requires (Dev)
- xp-framework/unittest: ^11.1
README
This library parses SQL statements.
Examples
use text\sql\{Parser, SyntaxError}; $p= new Parser(); try { $statement= $p->parse('select * from user where user_id = 1'); } catch (SyntaxError $e) { // Handle } // new Select( // [new All()], // [new Table('user')], // new Comparison(new Field(null, 'uid'), '=', new Number(1)) // )
Support
This library is not yet complete. Currently, the following are supported:
- USE database selection
- SELECT, INSERT, UPDATE and DELETE statements
- CREATE / DROP TABLE schema modification
- ALTER TABLE ADD / DROP COLUMN table modification
Other statements may be added via extend()
:
use text\sql\Parser; $p= new Parser(); // Incomplete implementation of https://dev.mysql.com/doc/refman/8.0/en/show.html $p->extend('show', function($parse, $token) { return ['show' => $parse->match([ 'events' => function($parse, $token) { return 'events'; }, 'variables' => function($parse, $token) { if ('like' === $parse->token->symbol->id) { $parse->forward(); return ['variables' => $parse->expression()]; } else { return ['variables' => null]; } } ])]; }); $statement= $p->parse('show variables like "sql_mode"'); // ['show' => ['variables' => new Text('sql_mode')]]