SunshinePHP Developer Conference 2015

SQLite3::querySingle

(PHP 5 >= 5.3.0)

SQLite3::querySingleExecutes a query and returns a single result

Descrizione

public mixed SQLite3::querySingle ( string $query [, bool $entire_row = false ] )

Executes a query and returns a single result.

Elenco dei parametri

query

The SQL query to execute.

entire_row

By default, querySingle() returns the value of the first column returned by the query. If entire_row is TRUE, then it returns an array of the entire first row.

Valori restituiti

Returns the value of the first column of results or an array of the entire first row (if entire_row is TRUE).

If the query is valid but no results are returned, then NULL will be returned if entire_row is FALSE, otherwise an empty array is returned.

Invalid or failing queries will return FALSE.

Esempi

Example #1 SQLite3::querySingle() example

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

var_dump($db->querySingle('SELECT username FROM user WHERE userid=1'));
print_r($db->querySingle('SELECT username, email FROM user WHERE userid=1'true));
?>

Il precedente esempio visualizzerĂ  qualcosa simile a:

string(5) "Scott"
Array
(
    [username] => Scott
    [email] => scott@example.com
)

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