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ifx_num_fields

ifx_num_fields

(PHP 4, PHP <=5.2.0)

ifx_num_fieldsReturns the number of columns in the query

说明

int ifx_num_fields ( resource $result_id )

After preparing or executing a query, this call gives you the number of columns in the query.

参数

result_id

result_id is a valid resultid returned by ifx_query() or ifx_prepare() (select type queries only!).

返回值

Returns the number of columns in query for result_id, or FALSE on errors.

范例

Example #1 ifx_num_fields() Example

<?php
$conn_id 
ifx_connect("db""user""password");
$res_id ifx_query("select * from systables"$conn_id);
echo 
ifx_num_fields($res_id);
?>

参见


  • ifxus_close_slob
  • ifxus_create_slob
  • ifxus_free_slob
  • ifxus_open_slob
  • ifxus_read_slob
  • ifxus_seek_slob
  • ifxus_tell_slob
  • ifxus_write_slob
  • ifx_affected_rows
  • ifx_blobinfile_mode
  • ifx_byteasvarchar
  • ifx_close
  • ifx_connect
  • ifx_copy_blob
  • ifx_create_blob
  • ifx_create_char
  • ifx_do
  • ifx_error
  • ifx_errormsg
  • ifx_fetch_row
  • ifx_fieldproperties
  • ifx_fieldtypes
  • ifx_free_blob
  • ifx_free_char
  • ifx_free_result
  • ifx_getsqlca
  • ifx_get_blob
  • ifx_get_char
  • ifx_htmltbl_result
  • ifx_nullformat
  • ifx_num_fields
  • ifx_num_rows
  • ifx_pconnect
  • ifx_prepare
  • ifx_query
  • ifx_textasvarchar
  • ifx_update_blob
  • ifx_update_char
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