php-array-loop-reference.php

$aTest = array(
	5 => array('pseudo' => 'donald'),
	200 => array('pseudo' => 'mickey')
);

echo 'Before script';
var_dump($aTest);

foreach ($aTest as $iId => &$aData)
	$aData['test'] = $iId;

// Should unset $aData here!! References are tricky
echo 'After reference loop';
var_dump($aTest);

foreach ($aTest as $iId => $aData)
	;

echo 'After same variable name loop but no reference';
var_dump($aTest);