cubrid_field_len

(PECL CUBRID >= 8.3.0)

cubrid_field_len — Returns the maximum length of the specified field

说明

int cubrid_field_len ( resource $result , int $field_offset )

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
    $link = cubrid_connect("localhost", 30000, "demodb2", "dba", "");
    if (!$link)
    {
        die('Could not connect.');
    }
    $query = 'SELECT id, name, address, salary FROM employees';
    $result = cubrid_execute($link, $query);
    if ($result) 
    {
        $length = cubrid_field_len($result, 1);
        echo "Length of NAME field is ".$length;

        cubrid_close_request($result); 
    }
?>

以上例程会输出：

Result:
Length of NAME field is 256