sqlite_has_more
(PHP 5 < 5.4.0, PECL sqlite >= 1.0.0)
sqlite_has_more — Finds whether or not more rows are available
Description
bool sqlite_has_more
( resource
$result
)Finds whether more rows are available from the given result set.
Parameters
-
result -
The SQLite result resource.
Return Values
Returns TRUE if there are more rows available from the
result handle, or FALSE otherwise.
See Also
- sqlite_num_rows() - Returns the number of rows in a buffered result set
- sqlite_changes() - Returns the number of rows that were changed by the most recent SQL statement
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения для работы с базами данных
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- SQLite
- sqlite_array_query
- sqlite_busy_timeout
- sqlite_changes
- sqlite_close
- sqlite_column
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- sqlite_exec
- sqlite_factory
- sqlite_fetch_all
- sqlite_fetch_array
- sqlite_fetch_column_types
- sqlite_fetch_object
- sqlite_fetch_single
- sqlite_fetch_string
- sqlite_field_name
- sqlite_has_more
- sqlite_has_prev
- sqlite_key
- sqlite_last_error
- sqlite_last_insert_rowid
- sqlite_libencoding
- sqlite_libversion
- sqlite_next
- sqlite_num_fields
- sqlite_num_rows
- sqlite_open
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- sqlite_rewind
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- sqlite_udf_decode_binary
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- sqlite_unbuffered_query
- sqlite_valid
Коментарии
I use this function to check if an element exists in the database.
<?php
$cat=$_REQUEST['cat'];
$db=sqlite_open('./sqlite_database.db',0666,$err) or die();
$query='select * from catsub where cat=\''.$cat.'\'';
$result=sqlite_has_more(sqlite_query($db,$query));
if($result===true ) echo 'Exists'; else echo 'Doesnt Exist';
sqlite_close($db);
?>
dragosmocrii at gmail dot com:
It is slightly more efficient to use the COUNT function. (And when I say slightly I mean whisker small slightly.)
<?php
// $db is a SQLite database connection
if (sqlite_single_query($db, 'SELECT COUNT(*) FROM records WHERE amount_owing > 500')) {
// There are records where the amount owing exceeds $500, do some action.
} else {
// No money for you!
}
?>