sqlite_fetch_single

(PHP 5)

sqlite_fetch_single

(no version information, might be only in CVS)

SQLiteResult->fetchSingle

(no version information, might be only in CVS)

SQLiteUnbuffered->fetchSingle -- Fetches the first column of a result set as a string

Popis

string sqlite_fetch_single ( resource result [, bool decode_binary] )

Object oriented style (method):

class SQLiteResult {

string fetchSingle ( [bool decode_binary] )

}class 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.

Parametre

result

The SQLite result resource. This parameter is not required when using the object-oriented method.

decode_binary

Ke� sa decode_binary parameter nastav� na TRUE (default), PHP dek�duje k�dovanie bin�rneho s�boru, ktor� aplikoval na d�ta, ak bol zak�dovan� pomocou sqlite_escape_string(). T�to hodnotu by ste mali ponecha� vo svojom v�chodzom stave, pokia� nespolupracujete s datab�zami vytvoren�mi in�mi sqlite schopn�mi aplik�ciami.

Príklady

Príklad 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);
}
?>

Tiež pozri

sqlite_fetch_array()