php 한글 메뉴얼 도움말 검색 사이트 Get the length of a field [function.mssql-field-length]

설명

int mssql_field_length ( resource $result [, int $offset = -1 ] )

Returns the length of field no. offset in result.

인수

result: The result resource that is being evaluated. This result comes from a call to mssql_query().
offset: The field offset, starts at 0. If omitted, the current field is used.

반환값

The length of the specified field index on success실패 시 FALSE를 반환합니다.

예제

Example #1 mssql_field_length() example


<?php
// Connect to MSSQL and select the database
mssql_connect('MANGO\SQLEXPRESS', 'sa', 'phpfi');
mssql_select_db('php');

// Send a select query to MSSQL
$query = mssql_query('SELECT [name], [age] FROM [php].[dbo].[persons]');

// Print the field length
echo 'The field \'age\' has a data length of ' . mssql_field_length($query, 1);

// Free the query result
mssql_free_result($query);
?>

위 예제의 출력 예시:

The field 'age' has a data length of 4

주의

Note: Note to Windows Users

Due to a limitation in the underlying API used by PHP (MS DBLib C API), the length of VARCHAR fields is limited to 255. If you need to store more data, use a TEXT field instead.

참고

mssql_field_name() - Get the name of a field
mssql_field_type() - Gets the type of a field