一个函数的多次返回

无法返回两个变量。虽然，您 可以 传播一个数组并返回它；创建条件以返回动态变量，等等。

例如，此函数将返回

$var2

function wtf($blahblah = true) {    $var1 = "ONe";    $var2 = "tWo";    if($blahblah === true) {      return $var2;    }    return $var1;}

在应用中：

echo wtf();//would echo: tWoecho wtf("not true, this is false");//would echo: ONe

如果您都想要它们，可以稍微修改一下功能

function wtf($blahblah = true) {    $var1 = "ONe";    $var2 = "tWo";    if($blahblah === true) {      return $var2;    }    if($blahblah == "both") {      return array($var1, $var2);    }    return $var1;}echo wtf("both")[0]//would echo: oneecho wtf("both")[1]//would echo: tWolist($first, $second) = wtf("both")// value of $first would be $var1, value of $second would be $var2