I have a paginated post on WordPress with about 5 pages. I want to set it up so that the images in the content from the previous page automatically link to the following page.
I've used the following code in functions.php file:
<?php
add_action('the_content',function($content) {
global $page, $numpages, $multipage;
if ( $multipage ) {
$nextPage = $page + 1;
if ( $nextPage <= $numpages ) {
$link = _wp_link_page( $nextPage );
$content = preg_replace('/(<img(.+?)\/>)/i','<a href="'.$link.'">$1</a>', $content);
}
}
// send back our content, modified or not
return $content;
});
?>
The code above ALMOST works. When I substitute the $link variable for an actual URL e.g. , all the images in a paginated post end up linking to google. However, when I place the variable $link there, none of the images link anywhere. Not sure if there's an issue with me using the _wp_link_page variable.
I'm totally lost as to why it won't work when the $link variable is placed, but it works with any other value.
Hopefully someone can assist. Let me know!
Thanks.
I have a paginated post on WordPress with about 5 pages. I want to set it up so that the images in the content from the previous page automatically link to the following page.
I've used the following code in functions.php file:
<?php
add_action('the_content',function($content) {
global $page, $numpages, $multipage;
if ( $multipage ) {
$nextPage = $page + 1;
if ( $nextPage <= $numpages ) {
$link = _wp_link_page( $nextPage );
$content = preg_replace('/(<img(.+?)\/>)/i','<a href="'.$link.'">$1</a>', $content);
}
}
// send back our content, modified or not
return $content;
});
?>
The code above ALMOST works. When I substitute the $link variable for an actual URL e.g. http://google, all the images in a paginated post end up linking to google. However, when I place the variable $link there, none of the images link anywhere. Not sure if there's an issue with me using the _wp_link_page variable.
I'm totally lost as to why it won't work when the $link variable is placed, but it works with any other value.
Hopefully someone can assist. Let me know!
Thanks.
Share Improve this question edited Jan 26, 2019 at 6:27 Kashif Rafique 2351 gold badge3 silver badges12 bronze badges asked Feb 26, 2018 at 4:31 johndoejohndoe 133 bronze badges 1 |1 Answer
Reset to default 0_wp_link_page() returns a HTML string and not just the URL address of the link. So, if the link's URL address is http://example/blah/2/, then _wp_link_page() would return:
<a href="http://example/blah/2/">
..i.e. it returns the opening a tag for that link.
So replace the following:
$content = preg_replace('/(<img(.+?)\/>)/i','<a href="'.$link.'">$1</a>', $content);
..with this:
$content = preg_replace('/(<img(.+?)\/>)/i', $link . '$1</a>', $content);
add_filter()? – Michael Commented Feb 26, 2018 at 4:51