I was getting "database locked" all the time until I found out some features of sqlite3 must be set by using SQL special instructions (i.e. using PRAGMA keyword). For instance, what apparently solved my problem with "database locked" was to set journal_mode to 'wal' (it is defaulting to 'delete', as stated here: https://www.sqlite.org/wal.html (see Activating And Configuring WAL Mode)).
So basically what I had to do was creating a connection to the database and setting journal_mode with the SQL statement. Example:
<?php
$db = new SQLite3('/my/sqlite/file.sqlite3');
$db->busyTimeout(5000);
// WAL mode has better control over concurrency.
// Source: https://www.sqlite.org/wal.html
$db->exec('PRAGMA journal_mode = wal;');
?>
Hope that helps.SQLite3::exec
Почист и полокален преглед на PHP референцата, со задржана структура од PHP.net и подобра читливост за примери, секции и белешки.
SQLite3::exec
Референца за `sqlite3.exec.php` со подобрена типографија и навигација.
SQLite3::exec
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SQLite3::exec — Executes a result-less query against a given database
= NULL
Executes a result-less query against a given database.
Забелешка: SQLite3 may need to create » temporary files during the execution of queries, so the respective directories may have to be writable.
Параметри
query-
The SQL query to execute (typically an INSERT, UPDATE, or DELETE query).
Вратени вредности
Патеката до PHP скриптата што треба да се провери. true if the query succeeded, false при неуспех.
Примери
Пример #1 SQLite3::exec() example
<?php
$db = new SQLite3('mysqlitedb.db');
$db->exec('CREATE TABLE bar (bar TEXT)');
?>