(PHP 5 >= 5.3.0, PHP 7)
SQLite3::querySingle — Executes a query and returns a single result
Executes a query and returns a single result.
queryThe 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.
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.
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));
?>
以上例程的输出类似于：
string(5) "Scott"
Array
(
[username] => Scott
[email] => scott@example.com
)