我想使用一个从高级URL Shortener脚本的API生成短URL的短代码。

我将API中的代码添加到模板函数中：

// Main Function
function shorten_url($url){

    $siteurl="http://go.mysite.com"; // FOR Example http://gempixel.com/short
    $apikey="8jkyA3e7xs1J"; // You can get it from the user account

    if($apikey && $siteurl){
        $short=@file_get_contents("$siteurl/api?api=$apikey&url=".strip_tags(trim($url)));
        $short=json_decode($short,TRUE);
        if(!$short["error"]){
            return $short["short"];
        }
    }
}
// Shortcode function
function shortcode_shorten_url($atts,$content){
   return shorten_url($content);
}

// Register Shortcode
add_shortcode("shorten", "shortcode_shorten_url");

<?php echo do_shortcode(\'[shorten]http://mylink.com[/shorten]\'); ?>

如何在其他有外部链接的地方使用由模板生成的短链接(functions.php), 像下面这样？

<?php  $numerado = 1; { while( have_rows(\'voo\') ): the_row(); ?>
    <li class="elemento">
    <a href="**I WANT TO PUT SHORT LINK HERE INSTEAD NORMAL LINK FROM op1**<?php echo get_sub_field(\'op1\'); ?>" rel=\'nofollow\' target="_blank" class="prawyklik">
    <span class="a"><b class="icon-controller-play play"></b> <?php _e(\'Option\',\'mundothemes\'); ?> <?php echo $numerado; ?></span>
    <span class="b">
    <img src="http://www.google.com/s2/favicons?domain=<?php echo get_sub_field(\'op2\'); ?>" alt="<?php echo get_sub_field(\'op2\'); ?>"> 
    <?php echo get_sub_field(\'op2\'); ?>
    </span>
    <span class="c"><?php echo get_sub_field(\'op3\'); ?></span>
    <span class="d"><?php echo get_sub_field(\'op4\'); ?></span>
    </a>
    </li>
    <?php $numerado++; ?>
<?php endwhile; } ?>