echo中的PHP数组

I have an assignment to do but am having trouble understanding the given psuedocode :/

<?php
$bucket = new array();
print $bucket->addrocks('Rock1')->addrocks('rock2')-
>addrocks('Rock3');

echo "<h1>My Bucket</h1>";
echo "<ul>";
foreach($bucket as $rock){
echo "<li>". $rock ."</li>";
}
echo "</ul>";
?>

Now my trouble starts with understanding how they want me to construct the array after the "print" call? i am not looking for a direct answer to this just maybe a tutorial link or a finger in the right direction

Thank you in advance

In PHP, new is only used for instantiating objects Furthermore, array is a reserved word in PHP, so name your class something else. To instantiate an array in PHP you do this:

 $my_array = array();

Now to add items to the array you would do this:

 $my_array[] = "Rock 1";
 $my_array[] = "Rock 2";
 $my_array[] = "Rock 3";

To traverse the array you can use any type of loop, but usually you would just use a foreach loop.

For example:

 foreach($my_array as $key => $value) {
   echo $value . "<br />";
 }

The problem lies in the array construction. This is how one constructs an array in PHP:

one by one:

$bucket = array();
$bucket[] = "Rock1";
$bucket[] = "Rock2";
$bucket[] = "Rock3";

All at once:

$bucket = array("Rock1","Rock2","Rock3");

The documentation: http://php.net/manual/en/language.types.array.php

Well unlikely but may be the array is not an construct but an class in your pseudocode. My assumptions depend on the use of new keyword and the user of -> and addrocks which looks like a method.

So, create a class called array (stupid I know) and get going.

However the user of foreach($bucket) also shows that it expects $bucket to be array. So decide wisely :)

May be use a magic method called __toString() inside the class and return back the array.