SQLite

&reftitle.intro; This is an extension for the SQLite Embeddable SQL Database Engine. SQLite is a C library that implements an embeddable SQL database engine. Programs that link with the SQLite library can have SQL database access without running a separate RDBMS process. SQLite is not a client library used to connect to a big database server. SQLite is the server. The SQLite library reads and writes directly to and from the database files on disk. For further information see the SQLite Website (&url.sqlite;).

Read the INSTALL file, which comes with the package. Or just use the PEAR installer with pear install sqlite. SQLite itself is already included, You do not need to install any additional software. Windows users may download the DLL version of the SQLite extension here: (php_sqlite.dll). In PHP 5, the SQLite extension and the engine itself are bundled and compiled by default. However, since PHP 5.1.0 you need to manually activate the extension in &php.ini; (because it is now bundled as shared). Moreover, since PHP 5.1.0 SQLite depends on PDO it must be enabled too, by adding the following lines to &php.ini; (in order): On Linux or Unix operating systems, if you build PDO as a shared extension, you must build SQLite as a shared extension using the --with-sqlite=shared configure option. SQLite 3 is supported through PDO SQLite. On Windows operating systems, unprivileged accounts don't have the TMP environment variable set by default. This will make sqlite create temporary files in the windows directory, which is not desirable. So, you should set the TMP environment variable for the web server or the user account the web server is running under. If Apache is your web server, you can accomplish this via a SetEnv directive in your &httpd.conf; file. For example: If you are unable to establish this setting at the server level, you can implement the setting in your script: The setting must refer to a directory that the web server has permission to create files in and subsequently write to and delete the files it created. Otherwise, you may receive the following error message: malformed database schema - unable to open a temporary database file for storing temporary tables

&reftitle.required; In order to have these functions available, you must compile PHP with SQLite support, or load the SQLite extension dynamically from your &php.ini;.

&reftitle.resources; There are two resources used in the SQLite Interface. The first one is the database connection, the second one the result set.

&reference.sqlite.constants;

&reftitle.classes;

Represents an opened SQLite database.

&reftitle.constructor; __construct - construct a new SQLiteDatabase object

&reftitle.methods; query - Execute a query queryExec - Execute a result-less query arrayQuery - Execute a query and return the result as an array singleQuery - Execute a query and return either an array for one single column or the value of the first row unbufferedQuery - Execute an unbuffered query lastInsertRowid - Returns the rowid of the most recently inserted row changes - Returns the number of rows changed by the most recent statement createAggregate - Register an aggregating UDF for use in SQL statements createFunction - Register a UDF for use in SQL statements busyTimeout - Sets or disables busy timeout duration lastError - Returns the last error code of the most recently encountered error fetchColumnTypes - Return an array of column types from a particular table

Represents a buffered SQLite result set.

&reftitle.methods; fetch - Fetches the next row from the result set as an array fetchObject - Fetches the next row from the result set as an object fetchSingle - Fetches the first column from the result set as a string fetchAll - Fetches all rows from the result set as an array of arrays column - Fetches a column from the current row of the result set numFields - Returns the number of fields in the result set fieldName - Returns the name of a particular field in the result set current - Fetches the current row from the result set as an array key - Return the current row index next - Seek to the next row number valid - Returns whether more rows are available rewind - Seek to the first row number of the result set prev - Seek to the previous row number of the result set hasPrev - Returns whether or not a previous row is available numRows - Returns the number of rows in the result set seek - Seek to a particular row number

Represents an unbuffered SQLite result set. Unbuffered results sets are sequential, forward-seeking only.

&reftitle.methods; fetch - Fetches the next row from the result set as an array fetchObject - Fetches the next row from the result set as an object fetchSingle - Fetches the first column from the result set as a string fetchAll - Fetches all rows from the result set as an array of arrays column - Fetches a column from the current row of the result set numFields - Returns the number of fields in the result set fieldName - Returns the name of a particular field in the result set current - Fetches the current row from the result set as an array next - Seek to the next row number valid - Returns whether more rows are available

&reference.sqlite.ini; &reference.sqlite.functions;