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(PHP 5 >= 5.3.0)
SQLite3::querySingle — Executes a query and returns a single result
$query
[, bool $entire_row
= false
] )Executes a query and returns a single result.
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.
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 )