SQLite3

简介
安装／配置
预定义常量
SQLite3 — SQLite3 类
- 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::enableExceptions — Enable throwing exceptions
- 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::openBlob — Opens a stream resource to read a BLOB
- SQLite3::prepare — Prepares an SQL statement for execution
- SQLite3::query — Executes an SQL query
- 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 — SQLite3Stmt 类
- 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::readOnly() — Returns whether a statement is definitely read only
- SQLite3Stmt::reset — Resets the prepared statement
SQLite3Result — SQLite3Result 类
- 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

User Contributed Notes

Anonymous 06-Dec-2011 09:56


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

alan at chandlerfamily dot org dot uk 09-Aug-2010 10:36


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.