本文整理汇总了PHP中C::returnVariableByRef方法的典型用法代码示例。如果您正苦于以下问题：PHP C::returnVariableByRef方法的具体用法？PHP C::returnVariableByRef怎么用？PHP C::returnVariableByRef使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类C的用法示例。
在下文中一共展示了C::returnVariableByRef方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: returnConstantByValue
static function returnConstantByValue()
{
return 100;
}
static function &returnConstantByRef()
{
return 100;
}
static function &returnVariableByRef()
{
return $GLOBALS['a'];
}
}
echo "\n---> 1. Trying to assign by reference the return value of a function that returns by value:\n";
unset($a, $b);
$a = 4;
$b =& C::returnConstantByValue();
$a++;
var_dump($a, $b);
echo "\n---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:\n";
unset($a, $b);
$a = 4;
$b =& C::returnConstantByRef();
$a++;
var_dump($a, $b);
echo "\n---> 3. Trying to assign by reference the return value of a function that returns by ref:\n";
unset($a, $b);
$a = 4;
$b =& C::returnVariableByRef();
$a++;
var_dump($a, $b);示例2: C
{
return 100;
}
function &returnConstantByRef()
{
return 100;
}
static function &returnVariableByRef()
{
return $GLOBALS['a'];
}
}
$c = new C();
echo "\n---> 1. Trying to assign by reference the return value of a function that returns by value:\n";
unset($a, $b);
$a = 4;
$b =& $c->returnConstantByValue();
$a++;
var_dump($a, $b);
echo "\n---> 2. Trying to assign by reference the return value of a function that returns a constant by ref:\n";
unset($a, $b);
$a = 4;
$b =& $c->returnConstantByRef();
$a++;
var_dump($a, $b);
echo "\n---> 3. Trying to assign by reference the return value of a function that returns by ref:\n";
unset($a, $b);
$a = 4;
$b =& $c->returnVariableByRef();
$a++;
var_dump($a, $b);