sqlite_exec

SQLiteDatabase->exec

(PHP 5, PECL sqlite >= 1.0.3)

sqlite_exec -- SQLiteDatabase->exec — Executes a result-less query against a given database

Descripción

bool sqlite_exec ( resource $dbhandle , string $query [, string &$error_msg ] )

bool sqlite_exec ( string $query , resource $dbhandle )

Object oriented style (method):

bool SQLiteDatabase::queryExec ( string $query [, string &$error_msg ] )

Executes an SQL statement given by the query against a given database handle (specified by the dbhandle parameter).

Warning

SQLite will execute multiple queries separated by semicolons, so you can use it to execute a batch of SQL that you have loaded from a file or have embedded in a script.

Parámetros

dbhandle

The SQLite Database resource; returned from sqlite_open() when used procedurally. This parameter is not required when using the object-oriented method.

query

The query to be executed.

Data inside the query should be properly escaped.

error_msg

The specified variable will be filled if an error occurs. This is specially important because SQL syntax errors can't be fetched using the sqlite_last_error() function.

Note: Dos sintaxis alternativas son soportadas para la compatibilidad con otras extensiones de base de datos (tal como MySQL). La forma preferida es la primera, donde el parámetro dbhandle es el primero de la función.

Valores devueltos

This function will return a boolean result; TRUE for success or FALSE for failure. If you need to run a query that returns rows, see sqlite_query().

Los nombre de las columnas devueltos por SQLITE_ASSOC y SQLITE_BOTH serán mayúsculas o no de acuerdo al valor de la opción de configuración sqlite.assoc_case.

Historial de cambios

Versión	Descripción
5.1.0	Added the `error_msg` parameter

Ejemplos

Example #1 Procedural example


<?php
$dbhandle = sqlite_open('mysqlitedb');
$query = sqlite_exec($dbhandle, "UPDATE users SET email='jDoe@example.com' WHERE username='jDoe'", $error);
if (!$query) {
    exit("Error in query: '$error'");
} else {
    echo 'Number of rows modified: ', sqlite_changes($dbhandle);
}
?>

Example #2 Object-oriented example


<?php
$dbhandle = new SQLiteDatabase('mysqlitedb');
$query = $dbhandle->queryExec("UPDATE users SET email='jDoe@example.com' WHERE username='jDoe'", $error);
if (!$query) {
    exit("Error in query: '$error'");
} else {
    echo 'Number of rows modified: ', $dbhandle->changes();
}
?>

Ver también

sqlite_query() - Executes a query against a given database and returns a result handle
sqlite_unbuffered_query() - Execute a query that does not prefetch and buffer all data
sqlite_array_query() - Execute a query against a given database and returns an array

add a note User Contributed Notes sqlite_exec

nonproffessional at clockworkgeek dot com 17-Apr-2008 07:01


Just to point out that "CREATE TABLE IF NOT EXISTS" is only supported in SQLite version 3.3.0 or above. And PHP (currently 5.2.5) only comes with SQLite version 2.1.



Executing a create table like this will throw an error as will creating a table that already exists. Instead execute a normal "CREATE TABLE" command and catch it with "try {..} catch".

rrf5000 at psu dot edu 24-Jun-2007 11:33


If you run a multiline SQL command (an INSERT, for example), and there is a SQL error in any of the lines, this function will recognize the error and return FALSE.  However, any correct commands before the one with the error will still execute.  Additionally, if you run changes() after such an incident, it will report that 0 rows have been changed, even though there were rows added to the table by the successful commands.



An example would be:



<?php



// create new database (OO interface)

$dbo = new SQLiteDatabase("db/database.sqlite");



// create table foo

$dbo->query("CREATE TABLE foo(id INTEGER PRIMARY KEY, name CHAR(255));");



// insert sample data

$ins_query = "INSERT INTO foo (name) VALUES ('Ilia1');

INSERT INTO foo (name) VALUES('Ilia2');

INSECT INTO foo (name) VALUES('Ilia3');";

$dbo->queryExec($ins_query);



// get number of rows changed

$changes = $dbo->changes();

echo "<br />Rows changed:  $changes<br />";



// Get and show inputted data

$tableArray = $dbo->arrayQuery("SELECT * FROM foo;");

echo "Table Contents\n";

echo "<pre>\n";

print_r($tableArray);

echo "\n</pre>";



?>



The above code should show that 0 rows have been changed, but that there is new data in the table.

add a note