SQLite3::exec

(PHP 5 >= 5.3.0)

SQLite3::exec — Executes a result-less query against a given database

说明

public bool SQLite3::exec ( string $query )

Executes a result-less query against a given database.

参数

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

返回值

Returns TRUE if the query succeeded, FALSE on failure.

范例

Example #1 SQLite3::exec() example


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

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

用户评论:

gamag (2013-03-06 21:02:12)

SQLite needs to create some temp-files (journals...) to execute certain statements, so php needs write-permission in your db-directory.

info at tellmatic dot org (2013-01-16 15:50:26)

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 üermissions 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)

moodsey211 at gmail dot com (2010-12-16 15:29:10)

If you get the error message saying "SQLite3::exec. database locked." You just need to define a busyTimeout to work around this.