# dbase_numfields

(PHP 5 < 5.3.0, dbase 5, dbase 7)

dbase_numfields — Gets the number of fields of a database

### 说明

dbase_numfields ( resource `$dbase_identifier` ) : int

Gets the number of fields (columns) in the specified database.

> Note:

> Field numbers are between 0 and dbase_numfields($db)-1, while record numbers are between 1 and dbase_numrecords($db).

### 参数

`dbase_identifier`

  The database link identifier, returned by dbase_open() or dbase_create().

### 返回值

The number of fields in the database, or `FALSE` if an error occurs.

### 更新日志

版本 | 说明
--- | ---
dbase 7.0.0 | `dbase_identifier` is now a resource instead of an int.

### 范例

Example #1 dbase_numfields() Example

    <?php

    $rec = dbase_get_record($db, $recno);
    $nf  = dbase_numfields($db);
    for ($i = 0; $i < $nf; $i++) {
      echo $rec[$i], "\n";
    }

    ?>

### 参见

- dbase_numrecords() - Gets the number of records in a database