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(PHP 4 >= 4.0.6, PHP 5, PHP 7)
fbsql_data_seek — Move internal result pointer
$result
, int $row_number
)Moves the internal row pointer of the FrontBase result associated with the specified result identifier to point to the specified row number.
The next call to fbsql_fetch_row() would return that row.
result
由 fbsql_query() 或 fbsql_db_query() 返回的结果标识符。
row_number
The row number. Starts at 0.
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Example #1 fbsql_data_seek() example
<?php
$link = fbsql_pconnect ( "localhost" , "_SYSTEM" , "secret" )
or die( "Could not connect" );
fbsql_select_db ( "samp_db" )
or die( "Could not select database" );
$query = "SELECT last_name, first_name FROM friends;" ;
$result = fbsql_query ( $query )
or die( "Query failed" );
// fetch rows in reverse order
for ( $i = fbsql_num_rows ( $result ) - 1 ; $i >= 0 ; $i --) {
if (! fbsql_data_seek ( $result , $i )) {
printf ( "Cannot seek to row %d\n" , $i );
continue;
}
if (!( $row = fbsql_fetch_object ( $result )))
continue;
echo $row -> last_name . $row -> first_name . "<br />\n" ;
}
fbsql_free_result ( $result );
?>