cubrid_field_len
(PECL CUBRID >= 8.3.0)
cubrid_field_len — Get the maximum length of the specified field
说明
This function returns the maximum length of the specified field on success, or it returns FALSE on failure.
参数
-
result -
resultcomes from a call to cubrid_execute() -
field_offset -
The numerical field offset. The
field_offsetstarts at 0. Iffield_offsetdoes not exist, an error of levelE_WARNINGis also issued.
返回值
Maximum length, when process is successful.
false on failure.
示例
示例 #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);
?>以上示例会输出：
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
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