mssql_field_length

(PHP 4, PHP 5, PECL odbtp >= 1.1.1)

mssql_field_length — Get the length of a field

Warning

This function was REMOVED in PHP 7.0.0.

Alternatives to this function include:

说锟斤拷

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

Returns the length of field no. offset in result.

锟斤拷锟斤拷

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.

锟斤拷锟斤拷值

The length of the specified field index on success 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE.

锟斤拷锟斤拷

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);
?>

锟斤拷锟斤拷锟斤拷锟教碉拷锟斤拷锟斤拷锟斤拷锟斤拷冢锟�

The field 'age' has a data length of 4

注锟斤拷

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.

锟轿硷拷