SQLite3::exec

(PHP 5 >= 5.3.0)

SQLite3::execExecutes a result-less query against a given database

Descrizione

public bool SQLite3::exec ( string $query )

Executes a result-less query against a given database.

Elenco dei parametri

query

The SQL query to execute (typically an INSERT, UPDATE, or DELETE query).

Valori restituiti

Returns TRUE if the query succeeded, FALSE on failure.

Esempi

Example #1 SQLite3::exec() example

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

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

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User Contributed Notes 4 notes

up
7
gamag
1 year ago
SQLite needs to create some temp-files (journals...) to execute certain statements, so php needs write-permission in your db-directory.
up
3
Rob Haverkort
5 months ago
Actually, sqlite creates a journal-file when changing data and so it needs the write-permissions in the directory.
up
1
moodsey211 at gmail dot com
3 years ago
If you get the error message saying "SQLite3::exec. database locked." You just need to define a busyTimeout to work around this.
up
-6
info at tellmatic dot org
1 year ago
IMPORTANT! just a note:

weird behaviour when doing an exec on a sqlite db!!!

if want to execute a query on a sqlite db with exec, and your dbfile already was e.g. mode 777, and you get some php errors saying

"SQLite3::exec(): unable to open database file in ...."

and you get crazy while debugging, just add write ├╝ermissions to the whole directory for the user the webserver/php runs.

this behaviour makes absolutely NO sense, and is a source of frustration.
at least a more meaningful errormessage would be nice.
i couldnt figure out why sqlite needs write permissions for the whole dir instead of only one file. this is stupid and must be a bug!
(to be secure you have to create a directory with write permissions only for php/apache)
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