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# PDOStatement->fetchColumn()

(no version information, might be only in CVS)

PDOStatement->fetchColumn() -- Returns a single column from the next row of a result set

## Descrição

class PDOStatement {
string fetchColumn ( [int column_number] )
}

Returns a single column from the next row of a result set or `FALSE` if there are no more rows.

## Parâmetros

`column_number`

  0-indexed number of the column you wish to retrieve from the row. If no value is supplied, PDOStatement->fetchColumn() fetches the first column.

## Valores de retornado

PDOStatement->fetchColumn() returns a single column in the next row of a result set.

Atenção
There is no way to return another column from the same row if you use PDOStatement->fetchColumn() to retrieve data.

## Exemplos

Exemplo 1. Return first column of the next row
`<?php $sth = $dbh->prepare("SELECT name, colour FROM fruit"); $sth->execute(); /* Fetch the first column from the next row in the result set */ print("Fetch the first column from the next row in the result set:\n"); $result = $sth->fetchColumn(); print("name = $result\n"); print("Fetch the second column from the next row in the result set:\n"); $result = $sth->fetchColumn(1); print("colour = $result\n"); ?>`
O exemplo acima irá imprimir:
    Fetch the first column from the next row in the result set:
    name = lemon
    Fetch the second column from the next row in the result set:
    colour = red

## Veja também

PDO->query()
PDOStatement->fetch()
PDOStatement->fetchAll()
PDO->prepare()
PDOStatement->setFetchMode()

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