# odbc_field_num

(PHP 4, PHP 5, PHP 7)

odbc_field_num — Return column number

### 说明

odbc_field_num ( resource `$result_id` , string `$field_name` ) : int

Gets the number of the column slot that corresponds to the named field in the given result identifier.

### 参数

`result_id`

  The result identifier.

`field_name`

  The field name.

### 返回值

Returns the field number as a integer, or `FALSE` on error. Field numbering starts at 1.