sqlite_fetch_single
SQLiteResult->fetchSingle
SQLiteUnbuffered->fetchSingle
(No version information available, might be only in CVS)
SQLiteUnbuffered->fetchSingle — Fetches the first column of a result set as a string
설명
string sqlite_fetch_single
( resource $result
[, bool $decode_binary
] )
Object oriented style (method):
SQLiteResult
string fetchSingle
([ bool $decode_binary
] )
SQLiteUnbuffered
string fetchSingle
([ bool $decode_binary
] )
sqlite_fetch_single() is identical to sqlite_fetch_array() except that it returns the value of the first column of the rowset.
This is the most optimal way to retrieve data when you are only interested in the values from a single column of data.
매개변수
- result
-
The SQLite result resource. This parameter is not required when using the object-oriented method.
- decode_binary
-
decode_binary 매개변수가 TRUE(기본값)로 설정되면, PHP는 sqlite_escape_string()를 사용하여 인코드한 데이터로 취급하여 이진 인코딩을 해제합니다. 다른 sqlite 적용 프로그램에서 생성한 데이터베이스를 사용하지 않는 한, 기본값으로 사용하면 됩니다.
예제
Example#1 A sqlite_fetch_single() example
<?php
if ($dbhandle = sqlite_open('mysqlitedb', 0666, $sqliteerror)) {
$sql = "SELECT id FROM sometable WHERE id = 42";
$res = sqlite_query($dbhandle, $sql);
if (sqlite_num_rows($res) > 0) {
echo sqlite_fetch_single($res); // 42
}
sqlite_close($dbhandle);
}
?>