wordpress：我可以避免在<href标签内将“<”和“>”转换为“<：”和“>”

Question

I want to add a link on my wordpress website to take the user to the wordpress default "forgot password" page. Here is the wordpress documentation page I am working off of:

http://codex.wordpress.org/Function_Reference/wp_lostpassword_url

I am adding the link as text in the wordpress text editor as I don't have direct access to the source files. I am using the example html from the documentation page:

<a href="<?php echo wp_lostpassword_url(); ?>" title="Lost Password">Lost Password</a>

However, when I save the page, the "greater than" and "less than" brackets are converted to their respective html encoding so on the site instead of displaying the url as the href value, the string literal "<?php echo wp_lostpassword_url(); ?>" is displayed.

How can I avoid that?

Answer 1

Wordpress will not parse PHP code. There are plugins that can do it if you desire, but they are less than optimal. Instead, try something like this...

In your functions.php file:

add_shortcode('lostpassword_url', 'my_lostpassword_url');

function my_lostpassword_url($atts){
    return wp_lostpassword_url();
}

In the page with your form:

<a href="[lostpassword_url]" title="Lost Password">Lost Password</a>

This will tell WordPress to parse the content of your page/post and replace the [lostpassword_url] with the function call.

Answer 2

It's not beautiful, it's not fancy, I have no proud of that, but it just work:

function callback($buffer) {
    $buffer = str_replace('&','&',$buffer);
    $buffer = str_replace('>','>',$buffer);
    $buffer = str_replace('"','"',$buffer);
    $buffer = str_replace('&lt;','<',$buffer);
    return $buffer;
}
function buffer_start() { ob_start("callback"); }
function buffer_end() { ob_end_flush(); }
add_action('wp_head', 'buffer_start');
add_action('wp_footer', 'buffer_end');

That's the only solution worked when displaying PHP code on my posts.