If else statement to identify the last term in the array - php

Question

I have the below code to list the Array of terms, I am placing a comma between the terms if there are more than one term assigned to the post.
$terms = get_terms('my_term', $args);
if (!empty($terms) && !is_wp_error($terms)) {
$count = count($terms);
$i = 0;
$term_list = '<span>';
foreach ($terms as $term) {
$i++;
$term_list .= '#<span>' . $term->name . '</span>';
if ($count != $i) {
$term_list .= ', ';
} else {
$term_list .= '</span>';
}
}
}
Now, I would like place a & between the last two terms instead of a , if there are more than one term assigned to the post.

Answer 1

I think it is easier to solve it with an array.
$terms = get_terms('my_term', $args);
if (!empty($terms) && !is_wp_error($terms)) {
$term_array = [];
foreach ($terms as $term) {
$term_array[] = '#<span>' . $term->name . '</span>';
}
if(count($term_array) > 1){
$last = array_pop($term_array);
$term_list = '<span>' . implode(', ', $term_array) . '</span>';
$term_list .= ' & ' . $last;
} else {
$term_list = '<span>' . $term_array[0] . '</span>';
}
}
OR:
$terms = get_terms('my_term', $args);
if (!empty($terms) && !is_wp_error($terms)) {
$count = count($terms);
$i = 1;
$term_list = '<span>';
foreach ($terms as $term) {
$term_list .= '#<span>' . $term->name . '</span>';
if($i !== $count){
if($i === $count - 1){
$term_list .= ' & ';
} else {
$term_list .= ', ';
}
}
$i++;
}
$term_list .= '</span>';
}

Answer 2

Check if $count is equal to $i + 1:
if ($count != $i) {
if ($count == $i + 1)
$term_list .= '& ';
else
$term_list .= ', ';
} else {
$term_list .= '</span>';
}
That should do it.

Answer 3

You could check if the $count is equal to $i.
$i = 1;
if ($count != $i) {
$term_list .= ', ';
} else if ($count == $i) {
$term_list .= '& ';
} else {
$term_list .= '</span>';
}

Answer 4

Find the last element of the array, then just check each item within your loop against lastelement, then do your 'magic' ;).
Example:
$array = array('a' => 1,'b' => 2,'c' => 3);
$lastElement = end($array);
foreach($array as $k => $v) {
echo $v . '<br/>';
if($v == $lastElement) {
// 'Now you know that $v is the last element, do something';
}
}