将变量名称作为字符串传递

Question

I'm trying to perform the same function dosomething() to multiple variables $lastsum $avatar $angels $city $square in PHP.

$lastsum->dosomething();
$avatar->dosomething();
$angels->dosomething();
$city->dosomething();
$square->dosomething();

Is there a way to make this code cleaner by listing the names of the variables in a string array and perform the function with a for loop. I'm looking for something like this. Does anyone know the right way to do this in PHP?

$all = ['lastsum' , 'avatar', 'angels' , 'city' , 'square'];
foreach (....){
    $(nameofvariable)->dosomething();
}

Answer 1

What's wrong with

$all = array($lastsum , $avatar, $angels, $city, $square);
foreach (....){
    $variable->dosomething();
}

To achieve exactly what you're looking for, use variable variables

$all = array('lastsum' , 'avatar', 'angels' , 'city' , 'square');
foreach ($all as $x) {
    $$x->dosomething();
}

Many people consider this to be bad style though.