SQLite3
- Введение
- Установка и настройка
- Предопределенные константы
- SQLite3 — Класс SQLite3
- SQLite3::busyTimeout — Sets the busy connection handler
- SQLite3::changes — Returns the number of database rows that were changed (or inserted or deleted) by the most recent SQL statement
- SQLite3::close — Closes the database connection
- SQLite3::__construct — Instantiates an SQLite3 object and opens an SQLite 3 database
- SQLite3::createAggregate — Registers a PHP function for use as an SQL aggregate function
- SQLite3::createCollation — Registers a PHP function for use as an SQL collating function
- SQLite3::createFunction — Registers a PHP function for use as an SQL scalar function
- SQLite3::escapeString — Returns a string that has been properly escaped
- SQLite3::exec — Executes a result-less query against a given database
- SQLite3::lastErrorCode — Returns the numeric result code of the most recent failed SQLite request
- SQLite3::lastErrorMsg — Returns English text describing the most recent failed SQLite request
- SQLite3::lastInsertRowID — Returns the row ID of the most recent INSERT into the database
- SQLite3::loadExtension — Attempts to load an SQLite extension library
- SQLite3::open — Opens an SQLite database
- SQLite3::prepare — Подготавливает SQL-запрос для выполнения
- SQLite3::query — Выполняет SQL-запрос
- SQLite3::querySingle — Executes a query and returns a single result
- SQLite3::version — Returns the SQLite3 library version as a string constant and as a number
- SQLite3Stmt — The SQLite3Stmt class
- SQLite3Stmt::bindParam — Binds a parameter to a statement variable
- SQLite3Stmt::bindValue — Binds the value of a parameter to a statement variable
- SQLite3Stmt::clear — Clears all current bound parameters
- SQLite3Stmt::close — Closes the prepared statement
- SQLite3Stmt::execute — Executes a prepared statement and returns a result set object
- SQLite3Stmt::paramCount — Returns the number of parameters within the prepared statement
- SQLite3Stmt::reset — Resets the prepared statement
- SQLite3Result — The SQLite3Result class
- SQLite3Result::columnName — Returns the name of the nth column
- SQLite3Result::columnType — Returns the type of the nth column
- SQLite3Result::fetchArray — Fetches a result row as an associative or numerically indexed array or both
- SQLite3Result::finalize — Closes the result set
- SQLite3Result::numColumns — Returns the number of columns in the result set
- SQLite3Result::reset — Resets the result set back to the first row
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для работы с базами данных
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- MaxDB
- MongoDB
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- Microsoft SQL Server
- MySQL Drivers and Plugins
- Oracle OCI8
- Paradox File Access
- PostgreSQL
- SQLite
- SQLite3
- Microsoft SQL Server Driver for PHP
- Sybase
- tokyo_tyrant
Коментарии
PHP 5.3.3 introduced sqlite3::busyTimeout(int milliseconds) which does not currently seem to be documented.
It believe it acts like sqlite::busyTimeout - that is it tells sqlite3 to call an internal busyHandler if SQLITE_BUSY is returned from any call which waits a short period and then retries. It continues to do this until milliseconds milliseconds have elapsed and then returns the SQLITE_BUSY status.
I don't know whether the default 60 second value is in place if this function is not called.
As of PHP 5.4 support for Sqlite2 has been removed. I have a large web app that was built with sqlite2 as the database backend and thus it exploded when I updated PHP. If you're in a similar situation I've written a few wrapper functions that will allow your app to work whilst you convert the code to sqlite3.
Firstly convert your DB to an sqlite3 db.
sqlite OLD.DB .dump | sqlite3 NEW.DB
Then add the following functions to your app:
<?php
function sqlite_open($location,$mode)
{
$handle = new SQLite3($location);
return $handle;
}
function sqlite_query($dbhandle,$query)
{
$array['dbhandle'] = $dbhandle;
$array['query'] = $query;
$result = $dbhandle->query($query);
return $result;
}
function sqlite_fetch_array(&$result,$type)
{
#Get Columns
$i = 0;
while ($result->columnName($i))
{
$columns[ ] = $result->columnName($i);
$i++;
}
$resx = $result->fetchArray(SQLITE3_ASSOC);
return $resx;
}
?>
They're not perfect by any stretch but they seem to be working ok as a temporary measure while I convert the site.
Hope that helps someone
PHP doesn't seem to support password protection for SQLite3. We can specify password on the db(I think) but you will still be able to open the DB without using a password so it is not working.To enable CURL and SQLITE3 on Windows with PHP 7.4 edit httpd.conf and php.ini as below:
httpd.conf:
# load php.ini from chosen directory
PHPIniDir "${SRVROOT}/php"
# load PHP 7.4 on Windows
LoadModule php7_module "${SRVROOT}/php/php7apache2_4.dll"
# load CURL on Windows
LoadFile "${SRVROOT}/php/libssh2.dll"
# load SQLITE3 on Windows
LoadFile "${SRVROOT}/php/libsqlite3.dll"
php.ini:
extension=curl
extension=pdo_sqlite
extension=sqlite3
Now CURL and SQLITE3 are enabled and working fine on Windows on PHP 7.4.