Mssql Functions
PHP Manual

mssql_field_length

Get the length of a field

Description

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

Returns the length of field no. offset in result.

Parameters

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.

Return Values

The length of the specified field index on success or FALSE on failure.

Examples

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);
?>

The above example will output something similar to:

The field 'age' has a data length of 4

Notes

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.

See Also

  • mssql_field_name
  • mssql_field_type