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SQLite3::exec

(PHP 5 >= 5.3.0, PHP 7)

SQLite3::exec指定したデータベースに、結果を返さないクエリを実行する

説明

public SQLite3::exec ( string $query ) : bool

指定したデータベースに、結果を返さないクエリを実行します。

パラメータ

query

実行したい SQL クエリ (通常は INSERT、UPDATE あるいは DELETE クエリ)。

返り値

クエリが成功した場合に TRUE、失敗した場合に FALSE を返します。

例1 SQLite3::exec() の例

<?php
$db 
= new SQLite3('mysqlitedb.db');

$db->exec('CREATE TABLE bar (bar STRING)');
?>

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User Contributed Notes 1 note

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13
alexandre dot schmidt at gmail dot com
3 years ago
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.
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