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giorgiosironi/gist:3750655

Created September 19, 2012 16:36
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gistfile1.php
<?php
function byReference(&$d)
{
$d = new DateTime('1990-01-01');
}
function byValue($d)
{
$d = new DateTime('1990-01-01');
}
$date = new DateTime('2011-03-04');
byReference($date);
echo '$date: ' . $date->format('Y-m-d');
$date = new DateTime('2011-03-04');
byValue($date);
echo '$date: ' . $date->format('Y-m-d');
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