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Pointers and references: Difference between revisions
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my $arrayref = ['an', 'array'];
my $hashref = { firstkey => 'a', secondkey => 'hash' }</lang>
=={{header|PHP}}==
Actual Reference or Pointer "objects" don't exist in PHP, but you can simply tie any given variable or array value together with the "=&" operator.
<lang php><?php
/* Assignment of scalar variables */
$a = 1;
$b =& $a; // $b and $a are now linked together
$b = 2; //both $b and $a now equal 2
$c = $b;
$c = 7; //$c is not a reference; no change to $a or $b
unset($a); //won't unset $b, just $a.
?></lang>
===See Also===
* [http://php.net/manual/en/language.references.php php.net:References Explained]
=={{header|PicoLisp}}==
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