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ArrayIterator::current

(PHP 5, PHP 7)

ArrayIterator::currentRetorna o valor do elemento atual do array

Descrição

ArrayIterator::current ( void ) : mixed

Obtém o atual elemento do array

Parâmetros

Esta função não possui parâmetros.

Valor Retornado

O atual elemento do array.

Exemplos

Exemplo #1 Exemplo de ArrayIterator::current()

<?php
$array 
= array('1' => 'um',
               
'2' => 'dois',
               
'3' => 'três');

$arrayobject = new ArrayObject($array);

for(
$iterator $arrayobject->getIterator();
    
$iterator->valid();
    
$iterator->next()) {

    echo 
$iterator->key() . ' => ' $iterator->current() . "\n";
}
?>

O exemplo acima irá imprimir:

1 => um
2 => dois
3 => três

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User Contributed Notes 1 note

up
-3
pcdinh at phpvietnam dot net
13 years ago
ArrayIterator is only used for interating simple arrays of which the value part is not another array. You can test it with a more complex array like this:

$arr = array (
    \\\'Section 1\\\' => array (
        \\\'Cat 1\\\' => array (
            1 => array (
                1 => \\\'So 1\\\',
                2=> \\\'So 2\\\'
            ),
            2 => \\\'So 2\\\'
        ),
       
        \\\'Cat 2\\\' => array (
            \\\'Sub-cat 1\\\' => array (
                1 => \\\'So 1\\\',
                2=> \\\'So 2\\\'
            ),
            \\\'Sub-cat 2\\\' => \\\'So 2\\\'
        )
    ),
   
    \\\'Section 2\\\' => array (
        \\\'Cat 1\\\' => array (   
           
        ),
       
        \\\'Cat 2\\\' => array (
            \\\'Sub-cat 1\\\' => array (
                1 => \\\'So 1\\\',
                2=> \\\'So 2\\\'
            ),
            \\\'Sub-cat 2\\\' => \\\'So 2\\\'
        )
    )
);

$arrayobject = new ArrayObject($arr);

for($iterator = $arrayobject->getIterator();
   $iterator->valid();
   $iterator->next()) {

   echo $iterator->key() . \\\' => \\\' . $iterator->current() . \\\"<br />\\\";
}

The above scriptlet will return

Section 1 => Array
Section 2 => Array

because it can not recursively iterate throught the array.

Do the following instead (in PHP5.1):

$arrayIterator = new RecursiveArrayIterator($arr);
$iterator = new RecursiveIteratorIterator($arrayIterator);
foreach ($iterator as $val) {
    echo $val.\\\'<br/>\\\';
}
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