Array in simple PHP function - php

Question

Just learning bits in PHP and trying to get simple function for my nav running
function navigation($pages) {
$pages = array($pages);
if($pages) {
echo "<ul class=nav>";
foreach($pages as $id => $page) {
echo "<li><a href=\"page.php?id={$id}\">";
echo strtoupper($page) . "</a>";
}
echo "</ul>";
}
}
Although this function is only returning the first value
navigation("Home", "About us", "Contact us");
Is it possible to put the function values to variable? I'm not sure what I'm doing here wrong.

Answer 1

Remove this:
$pages = array($pages);
And instead call the function like this:
navigation( array("Home", "About us", "Contact us") );
Please note that you should not output HTML like this:
echo "";
But instead make sure that the CSS classname is wrapped in quotes. To achieve this, you could use escaped double-quotes:
echo "";
Or, which would be my personal preference, single quotes in the outer string and normal double quotes inside:
echo '';
Generally you can use single-quotes to define any string in PHP, with only one exception, which is when you want to put special characters in your string, such as:
\n
\r
\t
and so on. These might not be interpreted correctly in a single-quoted string.
Here is a more refined version of your navigation() function:
function navigation(array $pages) {
if(!$pages)
return;
echo '<ul class="nav">';
foreach ($pages as $id => $page) {
echo '<li><a href="page.php?id=' . $id . '">';
echo strtoupper($page) . '</a>';
}
echo '</ul>';
}

Answer 2

<?php
function myFunction($text){
return md5($text);
}
$array = array(myFunction("Text to be MD5"), myFunction("More Sample Text"));
foreach($array as $value){
echo $value;
echo "<br>";
}
?>
Is this what you were looking for?
you can put the output of a function into an array
Output:
d41d8cd98f00b204e9800998ecf8427e
a95486400f22cfa1ce6ae3a8cacae1e4