page template - Redirect based on referer using Advanced Custom Fields

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Im currently trying to protect some WP pages by assigning a specific template to them.

Ive created the ACF fields "Referring URL" and "Redirect URL", as these could alter depending which page the template is assigned to.

What changes would be needed to have the template functionality go: IF referer is not "referring_url" redirect to "redirect_url"

Id like there to be no caching taking place either

However, the code below, placed just below get_header();, doesn't seem to work consistently, either incorrect formatting, placement in the template file, or a cache issue.

if ( get_field('enable_portal_protection') && !current_user_can('administrator') ) {
$referring_url = get_field('referring_url');
$redirect_url = get_field('redirect_url');
$referer = $_SERVER['HTTP_REFERER'];
$location = "Location: " . $redirect_url;

if ( $referer != $referring_url) {
    header($location);
}

}

Im currently trying to protect some WP pages by assigning a specific template to them.

Ive created the ACF fields "Referring URL" and "Redirect URL", as these could alter depending which page the template is assigned to.

What changes would be needed to have the template functionality go: IF referer is not "referring_url" redirect to "redirect_url"

Id like there to be no caching taking place either

However, the code below, placed just below get_header();, doesn't seem to work consistently, either incorrect formatting, placement in the template file, or a cache issue.

if ( get_field('enable_portal_protection') && !current_user_can('administrator') ) {
$referring_url = get_field('referring_url');
$redirect_url = get_field('redirect_url');
$referer = $_SERVER['HTTP_REFERER'];
$location = "Location: " . $redirect_url;

if ( $referer != $referring_url) {
    header($location);
}

}

• redirect
• page-template
• advanced-custom-fields

Share Improve this question asked Jan 10, 2019 at 14:25 MikeMike 122 bronze badges

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1 Answer 1

Sorted by: Reset to default 0

Try the template_redirect hook

function portal_protection() {

    if ( get_field('enable_portal_protection') && !current_user_can('administrator') ) {
        $referring_url = get_field('referring_url');
        $redirect_url = get_field('redirect_url');
        $referer = $_SERVER['HTTP_REFERER'];

        if ( $referer != $referring_url) {

            wp_redirect( $redirect_url );
            exit;
        }
    }
}
add_action( 'template_redirect', 'portal_protection' );

Also use wp_redirect. it's the WordPress way of redirecting.

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