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".
sqlite_exec
SQLiteDatabase::exec
(PHP 5 < 5.4.0, PECL sqlite >= 1.0.3)
sqlite_exec -- SQLiteDatabase::exec — Executes a result-less query against a given database
Descrição
sqlite_exec
( resource
$dbhandle
, string $query
[, string &$error_msg
] ) : bool
sqlite_exec
( string
$query
, resource $dbhandle
) : boolEstilo orientado à objeto (method):
public SQLiteDatabase::queryExec
( string
$query
[, string &$error_msg
] ) : bool
Executes an SQL statement given by the query against
a given database handle (specified by the dbhandle
parameter).
Aviso
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.
Parâmetros
-
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.
Nota: Duas sintaxes alternativas são suportaas para compatibilidade com outras extensões de banco de dados( como o MySQL). A forma preferida é a primeira, aonde o parâmetro
dbhandleé o primeiro parãmetro da função.
Valor Retornado
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().
Os nomes de colunas retornados por
SQLITE_ASSOC e SQLITE_BOTH serão
serão modificados para maiúsculas/minúsculas de acordo com o valor
da opção de configuração sqlite.assoc_case
.
Changelog
| Versão | Descrição |
|---|---|
| 5.1.0 |
Added the error_msg parameter
|
Exemplos
Exemplo #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);
}
?>
Exemplo #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();
}
?>
Veja Também
- sqlite_query() - Executa uma query em um banco de dados e retorna o manipulador de resultados
- sqlite_unbuffered_query() - Executa uma query que não guarda em buffer os resultados
- sqlite_array_query() - Executa uma query ao banco de dados e retorna uma matriz
add a note
User Contributed Notes 2 notes
nonproffessional at clockworkgeek dot com ¶
16 years ago
rrf5000 at psu dot edu ¶
16 years ago
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.
