Array Reverse and sorting is possible? - php

Question

I'm trying to sort names in alphabetical order after a reverse array.
It's a code done for ordering last name/first name in right order.
A few bugs, (like with names with middle names) but it works except the sorting.
Here is the code:
<?php
$terms = get_terms( 'pa_artist' );
if ( ! empty( $terms ) && ! is_wp_error( $terms ) ){
echo '<ul class="artists">';
foreach ( $terms as $term ) {
$array = explode(" ", $term->name);
if ($array[3]) {
$array[3] = strtoupper($array[3]);
$array[3] = "<strong>".$array[3]."</strong>";
}
elseif ($array[2]) {
$array[2] = strtoupper($array[2]);
$array[2] = "<strong>".$array[2]."</strong>";
} elseif ($array[1]) {
$array[1] = strtoupper($array[1]);
$array[1] = "<strong>".$array[1]."</strong>";
} else {
$array[0] = strtoupper($array[0]);
$array[0] = "<strong>".$array[0]."</strong>";
}
$rarray = array_reverse($array);
sort($rarray);
echo '<li>' . implode(" ", $rarray) . '</li>';
}
echo '</ul>';
}
For now the names are ordered as if the reverse was never done.
Some examples, at first it showed like this:
Auguste Renoir
Pablo Picasso
Paul Gauguin
After the reverse and If strings, it's like this:
RENOIR Auguste
PICASSO Pablo
GAUGUIN Paul
When i need it:
GAUGUIN Paul
PICASSO Pablo
RENOIR Auguste
I tried every sort fonction, can't make it work… I can't find a way to sort after a reverse array, is it even possible?
It's for a list of names builded with attributes on wordpress/woocommerce.

Answer 1

If I right understand -- it can be done simple like this:
$artists = array(
array('Auguste', '', 'Renoir'),
array('Pablo', '', 'Picasso'),
array('Paul', '', 'Gauguin'),
);
usort($artists, function($a, $b) {
return strcasecmp($a[2], $b[2]);
});
// print_r($artists);

Answer 2

You need to put each individual artist array into a bigger array, and then sort that:
<?php
$terms = get_terms( 'pa_artist' );
$artists = array();
foreach ( $terms as $term ) {
$array = explode(" ", $term->name);
if ($array[3]) {
$array[3] = strtoupper($array[3]);
$array[3] = "<strong>".$array[3]."</strong>";
}
elseif ($array[2]) {
$array[2] = strtoupper($array[2]);
$array[2] = "<strong>".$array[2]."</strong>";
} elseif ($array[1]) {
$array[1] = strtoupper($array[1]);
$array[1] = "<strong>".$array[1]."</strong>";
} else {
$array[0] = strtoupper($array[0]);
$array[0] = "<strong>".$array[0]."</strong>";
}
$rarray = array_reverse($array);
$artists[] = $rarray;
}
usort($artists, function($a, $b) {
return strcasecmp($a[2], $b[2]);
});
// now run your foreach loop again to output the markup you want...