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返回值_PHP

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Release： 2016-06-01 12:39:44
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使用一些可选的返回语句,任何类型的数值都能被返回,包括对象和广义表.

function my_sqrt ($num)

{

return $num * $num;

}

echo my_sqrt (4); // 输出 '16'.

　

可以返回多值,但是同时的影响使通过一个广义表来实现:

function foo()

{

return array (0, 1, 2);

}

list ($zero, $one, $two) = foo();

Related labels：
return return
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