Get the length of a field

# mssql_field_length

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

mssql_field_length — Get the length of a field

Avertizare

Această funcție a fost ELIMINATĂ în PHP 7.0.0.

Variante alternative pentru această funcție sunt:

- PDOStatement::getColumnMeta()
- sqlsrv_field_metadata()
- odbc_field_len()

### Descrierea

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

Returns the length of field no. `offset` in `result`.

### Parametri

`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.

### Valorile întoarse

The length of the specified field index on success sau `FALSE` în cazul eșecului.

### Exemple

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);
?>`

Exemplul de mai sus va afișa ceva similar cu:

    The field 'age' has a data length of 4

### Note

> Notă: 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.

### A se vedea și

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