PHP/Language Basics/Reference — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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(нет различий)
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Версия 10:37, 26 мая 2010
Содержание
Assigning a Variable by Reference
<html>
<head>
<title>Assigning a variable by reference</title>
</head>
<body>
<?php
$aVariable = 42;
$anotherVariable = &$aVariable;
$aVariable= 325;
print $anotherVariable;
?>
</body>
</html>
Assign reference to a variable
<?php
$value1 = "Hello";
$value2 =& $value1; /* $value1 and $value2 both equal "Hello". */
$value2 = "Goodbye"; /* $value1 and $value2 both equal "Goodbye". */
echo($value1);
echo($value2);
?>
unset reference variables
<?php
$a = "AAA";
$b = &$a;
$c = &$b;
print($a . "<br />");
unset($b);
print($c . "<br />");
?>
Variable References Demo
<?php
$my_foo = "A";
$my_bar = &$my_foo;
$my_foo = "B";
print($my_bar);
$my_bar = "C";
print($my_foo);
?>