cubrid_num_fields

(PECL CUBRID >= 8.3.0)

cubrid_num_fields — Return the number of columns in the result set

说明

int cubrid_num_fields ( resource $result )

This function returns the number of columns in the result set, on success, or it returns FALSE on failure.

参数

result: result comes from a call to cubrid_execute() , cubrid_query() and cubrid_prepare()

返回值

Number of columns, on success.

-1 if SQL sentence is not SELECT.

FALSE when process is unsuccessful.

范例

Example #1 cubrid_num_fields() example

  <?php
$conn  =  cubrid_connect ( "localhost" ,  33000 ,  "demodb" );

 $req  =  cubrid_execute ( $conn ,  "SELECT * FROM code" );

 $row_num  =  cubrid_num_rows ( $req );
 $col_num  =  cubrid_num_fields ( $req );

 printf ( "Row Num: %d\nColumn Num: %d\n" ,  $row_num ,  $col_num );

 cubrid_disconnect ( $conn );
 ?>

以上例程会输出：

Row Num: 6
Column Num: 2