如何创建一个数组类型变量的集合，其中部分变量名称相似，其他部分正在递增？

Question

I want to make 10 variables with name as answer-1,answer-2,answer-3 and so on. Can i use for loop in such a manner to create variables, if not then how can i do it?

<?php
for(i=1;i<=10;i++){
$answer_+i=new array();
}
?>

Answer 1

Your PHP syntax is all wrong (Yes you missed some $s and added extra new). You can create them using following syntax. Its called variable variables

for($i=1;$i<=10;$i++){
    ${"answer_$i"} = array();
}

But I suggest you use array for this. Array is more convenient.

for($i=1;$i<=10;$i++){
    $answer[$i] = array();
}

Here your $answer_1 will be $answer[1]. Best is to use no explicit index

for($i=1;$i<=10;$i++){
    $answer[] = array();
}

Now $answer_1 will be $answer[0]. You can loop over it by for, foreach, can use a lot of array functions.