循環的PHP語法

Question

我試圖將下面的PHP變成一個循環。我在過去完成了循環，但是這個難以讓語法正確。

$answer1= $_POST['answer1']; 
    $answer2= $_POST['answer2']; 
    $answer3= $_POST['answer3']; 
    $answer4= $_POST['answer4']; 
    $answer5= $_POST['answer5']; 
    $answer6= $_POST['answer6']; 
    $answer7= $_POST['answer7']; 
    $answer8= $_POST['answer8']; 
    $answer9= $_POST['answer9']; 
    $answer10= $_POST['answer10']; 
    $answer10= $_POST['answer10']; 

到目前爲止，我一直在使用如下所示的循環。

for ($x = 1; $x <= 10; $x++) { 
    $answer . $x = $_POST['answer' . $x]; 

    $b = "\$answer" . $x; 

    $a = $b . "= \$_POST[" . $b . "]"; 
} 

Answer 1

我認爲你應該使用{}運營商的PHP內容的動態無功代動態EVAL

for ($x = 1; $x <= 10; $x++) { 
    ${"answer" . $x} = $_POST['answer' . $x]; 

} 

http://php.net/manual/en/language.variables.variable.php

Answer 2

我想包的$answer和$x與{}，所以它會根據其他兩個變量的值創建變量

for ($x = 1; $x <= 10; $x++) { 
    {$answer . $x} = $_POST['answer' . $x]; 

    $b = "\$answer" . $x; 

    $a = $b . "= \$_POST[" . $b . "]"; 
}