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(PHP 4, PHP 5)
current — Retorna o elemento corrente em um array
Todo array tem um ponteiro interno para o elemento "atual", o qual é inicializado para apontar para o primeiro elemento inserido em um array.
O array.
A função current() simplesmente retorna o elemento do array para o qual esse ponteiro interno está apontando. Não move o ponteiro de forma alguma. Se o ponteiro interno estiver apontando para além do final da lista de elementos ou o array é vazio, current() retorna FALSE.
Esta função pode retornar o booleano FALSE, mas também pode retornar um valor não-booleano que pode ser avaliado como FALSE, como 0 ou "". Leia a seção em Booleanos para maiores informações. Utilize o operador === para testar o valor retornado por esta função.
Exemplo #1 Exemplo do uso de current() e amigos
<?php
$transport = array('foot', 'bike', 'car', 'plane');
$mode = current($transport); // $mode = 'foot';
$mode = next($transport); // $mode = 'bike';
$mode = current($transport); // $mode = 'bike';
$mode = prev($transport); // $mode = 'foot';
$mode = end($transport); // $mode = 'plane';
$mode = current($transport); // $mode = 'plane';
$arr = array();
var_dump(current($arr)); // bool(false)
$arr = array(array());
var_dump(current($arr)); // array(0) { }
?>
Nota: Você não será capaz de distinguir o fim de um array de um elemento boolean FALSE. Para percorer um array que pode conter elementos FALSE, veja a função each().
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