[wp-hackers] Appending Query Strings to Pretty Permalinks

[John Blackbourn]

add_query_arg()[1] is your friend. Example:

$single_page_permalink = add-query_arg( array( 'all', '1' ), get_permalink() );

[1] http://codex.wordpress.org/Function_Reference/add_query_arg

On 7 March 2011 19:39, Chip Bennett <chip at chipbennett.net> wrote:
> Good afternoon, hackers,
>
> I am attempting to create a "Single-Page View" link for paginated posts. I
> have everything working except for one: appending the correct query string
> delimiter.
>
> Here's the relevant code:
>
> global $page;
> if ( is_singular() && $page ) {
> $query_var_symbol = ( isset( $_SERVER['QUERY_STRING'] ) ? '&' : '?' );
> $single_page_permalink = get_permalink() . $query_var_symbol . 'all=1'; ?>
> <strong>|</strong> <a href="<?php echo $single_page_permalink;
> ?>">Single-Page View</a>
> <?php } ?>
>
>
> I've got this code to determine which delimiter to use:
>
> $query_var_symbol = ( isset( $_SERVER['QUERY_STRING'] ) ? '&' : '?' );
>
>
> But it always returns true, which results in the appended query string
> always being delimited with "&".
>
> My guess is that, because the actual URL is e.g. "www.domain.tld/?p=123",
> the $_SERVER variable is returning true in all instances.
>
> This results in, e.g. "www.domain.tld/2011/post-name/&querystring" instead
> of "www.domain.tld/2011/post-name/?querystring"
>
> The end result appears to work, but I'd still like to know:
>
> 1) How do I properly determine the appropriate query string delimiter?
> 2) Is there a better way to do what I'm doing? (I generally try to avoid
> using $_SERVER variables.)
>
> And if this question is more properly asked in the WPORG support forums,
> just let me know and I'll repost there.
>
> Thanks,
>
> Chip
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