Question

I am currently editing a wordpress theme with custom field outputs.
I have successfully made all the edits and everything works as it should.
My problem is that if a url is submitted into the custom field, the echo is exactly what was in there, so if someone enters http://www.somesite.com the echo is just that and adds it to the end of the domain: http://www.mysite.com http://www.somesite.com .
I want to check to see if the supplied link has the http:// prefix at the beginning, if it has then do bothing, but if not echo out http:// before the url.

I hope i have explained my problem as good as i can.

$custom = get_post_meta($post->ID, 'custom_field', true);

<?php if ( get_post_meta($post->ID, 'custom_field', true) ) : ?>
    <a href="<?php echo $custom ?>"> <img src="<?php echo bloginfo('template_url');?>/lib/images/social/image.png"/></a>
    <?php endif; ?>

Answer 1

parse_url() can help…

$parsed = parse_url($urlStr);
if (empty($parsed['scheme'])) {
    $urlStr = 'http://' . ltrim($urlStr, '/');
}