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SQLite3::prepare

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

SQLite3::preparePrepares an SQL statement for execution

Descrizione

public SQLite3::prepare(string $query): SQLite3Stmt|false

Prepares an SQL statement for execution and returns an SQLite3Stmt object.

Elenco dei parametri

query

The SQL query to prepare.

Valori restituiti

Returns an SQLite3Stmt object on success o false in caso di fallimento.

Esempi

Example #1 SQLite3::prepare() example

<?php
unlink
('mysqlitedb.db');
$db = new SQLite3('mysqlitedb.db');

$db->exec('CREATE TABLE foo (id INTEGER, bar STRING)');
$db->exec("INSERT INTO foo (id, bar) VALUES (1, 'This is a test')");

$stmt = $db->prepare('SELECT bar FROM foo WHERE id=:id');
$stmt->bindValue(':id', 1, SQLITE3_INTEGER);

$result = $stmt->execute();
var_dump($result->fetchArray());
?>

Vedere anche:

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User Contributed Notes 1 note

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-5
Venkata Subbaraju
8 years ago
Without checking the return value of "prepare" if "exec" is used then it will cause Fatal Error.

"PHP Fatal error: Call to a member function execute() on a non-object "

To avoid this error,need to check return value as following:

<?php
$db
= new SQLite3('school.db');
if(
$stmt = $db->prepare('SELECT id,student_name FROM classTen '))
{
$result = $stmt->execute();
$names=array();
while(
$arr=$result->fetchArray(SQLITE3_ASSOC))
{
$names[$arr['id']]=$arr['student_name'];
}
}
?>
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