PHP. Руководство по PHP. 2005

maxdb_num_fields

Пред.

След.

maxdb_num_fields

(PECL)maxdb_num_fields

(no version information, might be only in CVS)result->field_count --

Get the number of fields in a result

Description

Procedural style:int maxdb_num_fields (resource result)

Object oriented style (property):class result {

int field_count

}

maxdb_num_fields() returns the number of fields from specified result set.

Возвращаемые значения

The number of fields from a result set

Смотрите также

maxdb_fetch_field()

Example

Пример 1. Object oriented style
<?php $maxdb = new maxdb("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()){ printf("Connect failed: %s\n", maxdb_connect_error()); exit(); } if ($result = $maxdb->query("SELECT * FROM hotel.city ORDER BY zip")){ /* determine number of fields in result set */ $field_cnt = $result->field_count; printf("Result set has %d fields.\n", $field_cnt); /* close result set */ $result->close(); } /* close connection */ $maxdb->close(); ?>

Пример 2. Procedural style
<?php $link = maxdb_connect("localhost", "MONA", "RED", "DEMODB"); /* check connection */ if (maxdb_connect_errno()){ printf("Connect failed: %s\n", maxdb_connect_error()); exit(); } if ($result = maxdb_query($link, "SELECT * FROM hotel.city ORDER BY zip")){ /* determine number of fields in result set */ $field_cnt = maxdb_num_fields($result); printf("Result set has %d fields.\n", $field_cnt); /* close result set */ maxdb_free_result($result); } /* close connection */ maxdb_close($link); ?>

The above examples would produce the following output:
Result set has 3 fields.

Пред.
Начало
След.
maxdb_next_result
Уровень выше
maxdb_num_rows

Отвечу на любые вопросы. С уважением, Дмитрий Владимирович.

Ваше письмо	×