Returning References

Passing arguments to a function by reference
<?php
function inc(& $b) {
$b++;
}
$a = 1;
inc($a);
echo $a;
?>
Output:
2
A function may return a reference to data as opposed to a copy


<?php
function & get_data() {
$data = "Hello World";
return $data;
}
$foo = & get_data();
?>

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