Question

I have a php implode function to list wordpress custom field keys which works great. The problem is I need to wrap the web urls in an href to make them clickable and can’t wrap my head around the function sytnax. The key value is in this format http://www.site.com, so I had it set up for a single entry like so:

<?php if(get_post_meta($post->ID, 'website', true)): ?>
    <strong>Website:</strong> <a href="http://<?php echo get_post_meta($post->ID, 'website', true); ?>" target="_blank"><?php echo get_post_meta($post->ID, 'website', true); ?></a>
<?php endif; ?>

but now we need to be able to hold multiple entries separated by a comma. Here is the code that works, but does not output a clickable url:

<?php
if( $website = get_post_meta($post->ID, 'website') ):
    $label = count( $website ) > 1 ? 'Websites' : 'Website';
    ?>
    <strong><?php echo $label; ?>:</strong> <?php echo implode( $website, ', ' ); ?><br />
    <?php
endif;
?>

This is what I’ve been playing with, which is clearly wrong

<?php echo '<a href="http://' . implode('" target="_blank">', $website) . "</a>" . ', '; ?><br />

Even if it did work, it would only output the url, not the text that is linked.

——————— EDIT ————————-

Kai’s answer was closest, so I marked it the answer, but it didn’t include the label variable. By marrying two of them I came up with this answer which works beautifully

<?php
    if( $website = get_post_meta($post->ID, 'website') ):
        $label = count( $website ) > 1 ? 'Websites' : 'Website';
        $links = array_map(
            function($url) {
                 $url = htmlspecialchars($url);
                 return sprintf ('<a href="http://%s">%s</a>', $url, $url);
            },
            $website);
        ?>
        <strong><?php echo $label; ?>:</strong> <?php echo implode(', ', $links); ?><br />
<?php endif ?>

Answer 1

You could seriously abuse implode in a manner similar to what you have tried yourself and make it work, but that’s really not a good idea.

What you want is to move from a list of URLs to a list of anchor tags, which is possible with array_map:

if ($website = get_post_meta($post->ID, 'website')) {
    $links = array_map(
        function($url) {
             $url = htmlspecialchars($url);
             return sprintf ('<a href="http://%s">%s</a>', $url, $url);
        },
        $website);

    echo implode(', ', $links);
}