PHP在字符串文字中动态引用变量

Question

我在表单中有多个 PHP 变量

$number1, $number2, $number3 and so on...

我想在循环中动态引用这些变量以从中检索信息，但不确定如何动态引用静态变量。例如:

for($i = 1; $i <= 10; $i++) {
    //The first number to be printed should be the value from
    //$number1 not $number concatenated to $i

    //here are some of the strings I tried:
    echo "$number$i";
    echo "{$number}$i";
    echo "{$number}{$i}";
}

Answer 1

应该这样做:

echo ${"number{$i}"};

但为什么不使用数组呢？ $number[$i] 更具可读性......