PHP. Руководство по PHP. 2005

maxdb_field_seek

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maxdb_field_seek

(PECL)maxdb_field_seek

(no version information, might be only in CVS)result->field_seek -- Set result pointer to a specified field offset

Description

Procedural style:bool maxdb_field_seek (resource result, int fieldnr)

Object oriented style (method):class result {

bool field_seek (int fieldnr)

}

Sets the field cursor to the given offset. The next call to maxdb_fetch_field() will retrieve the field definition of the column associated with that offset.

Замечание: To seek to the beginning of a row, pass an offset value of zero.

Return values

maxdb_field_seek() returns previuos value of field cursor.

Example

Пример 1. Object oriented style


<?
$maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB");
/*check connection*/
if (maxdb_connect_errno()){
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$query = "SELECT name, cno from hotel.customer ORDER BY cno";
if ($result = $maxdb->query($query)){
/*Get field information for 2nd column*/
$result->field_seek(1);
$finfo = $result->fetch_field();
printf("Name: %s\n", $finfo->name);
printf("Table: %s\n", $finfo->table);
printf("max. Len: %d\n", $finfo->max_length);
printf("Flags: %d\n", $finfo->flags);
printf("Type: %d\n\n", $finfo->type);
$result->close();
}
/*close connection*/
$maxdb->close();

?>

Пример 2. Procedural style


<?
$link = maxdb_connect("localhost", "MONA", "RED", "DEMODB");
/*check connection*/
if (maxdb_connect_errno()){
printf("Connect failed: %s\n", maxdb_connect_error());
exit();
}
$query = "SELECT name, cno from hotel.customer ORDER BY cno";
if ($result = maxdb_query($link, $query)){
/*Get field information for 2nd column*/
maxdb_field_seek($result, 1);
$finfo = maxdb_fetch_field($result);
printf("Name: %s\n", $finfo->name);
printf("Table: %s\n", $finfo->table);
printf("max. Len: %d\n", $finfo->max_length);
printf("Flags: %d\n", $finfo->flags);
printf("Type: %d\n\n", $finfo->type);
maxdb_free_result($result);
}
/*close connection*/
maxdb_close($link);