fbsql_data_seek Move internal result pointer


fbsql_data_seek

(PHP 4 >= 4.0.6, PHP 5)

fbsql_data_seekMove internal result pointer

说明

bool fbsql_data_seek ( resource $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.

参数

result

fbsql_query()fbsql_db_query() 返回的结果标识符

row_number

The row number. Starts at 0.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE.

范例

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 "$i);
        continue;
    }

    if (!(
$row fbsql_fetch_object($result)))
        continue;

    echo 
$row->last_name $row->first_name "<br /> ";
}

fbsql_free_result($result);
?>


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