Php/docs/function.cubrid-field-len

• PHP Manual
• CUBRID MySQL 兼容性函数
• Get the maximum length of the specified field

cubrid_field_len

(PECL CUBRID >= 8.3.0)

cubrid_field_len — Get the maximum length of the specified field

说明

cubrid_field_len ( resource $result , int $field_offset ) : int

This function returns the maximum length of the specified field on success, or it returns FALSE on failure.

参数

result

result comes from a call to cubrid_execute()

field_offset

The numerical field offset. The field_offset starts at 0. If field_offset does not exist, an error of level E_WARNING is also issued.

返回值

Maximum length, when process is successful.

false on failure.

范例

Example #1 cubrid_field_len() example

<?php$conn = cubrid_connect("localhost", 33000, "demodb");$result = cubrid_execute($conn, "SELECT * FROM game WHERE host_year=2004 AND nation_code='AUS' AND medal='G'");$column_names = cubrid_column_names($result);$column_types = cubrid_column_types($result);printf("%-30s %-30s %-15s\n", "Column Names", "Column Types", "Column Maxlen");for($i = 0, $size = count($column_names); $i < $size; $i++) {    $column_len = cubrid_field_len($result, $i);    printf("%-30s %-30s %-15s\n", $column_names[$i], $column_types[$i], $column_len); }cubrid_disconnect($conn);?>

以上例程会输出：

Column Names                   Column Types                   Column Maxlen  
host_year                      integer                        11             
event_code                     integer                        11             
athlete_code                   integer                        11             
stadium_code                   integer                        11             
nation_code                    char                           3              
medal                          char                           1              
game_date                      date                           10