This library parses SQL statements.
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))
// )
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')]]