一个按钮上的随机回声？ [关闭]

Question

I present my simple working button and echo.

   <p>
  <span style="text-align: center">
  <?php
if(isset($_POST['submit'])){
echo "You pressed the button!";
}
?>
  </span>
<form method="post">
    <span style="text-align: center">
  <input name="submit" type="submit" value="Press me">
  </p>
    </span>
</form>

My question is two parts. Can I make one button randomize echo's in random order? Second part, is yes. How do I do that?

Answer 1

It is possible, by using array_rand(). Simply do something like this.

<?php 

$randomStrings = array(
    'some silly string',
    'another silly string',
    'i like pizza and stuff',
);

if(isset($_POST['submit'])){
    $keys = array_rand($randomStrings);
    echo $randomStrings[$keys[0]];
}
?>

^{Pseudo code}

---

you could even do something like this, but you should rather use in-built php functions.

<?php 

$randomStrings = array(
    'some silly string',
    'another silly string',
    'i like pizza and stuff',
);

if(isset($_POST['submit'])){
    $count = count($randomStrings);
    echo $randomStrings[rand(0, $count)];
}
?>

^{You don't need to use the above count() as array_rand() will shuffle the actual array around allowing you to harness the random strings being chosen.}