Add code to the_content()

I think you can use get_the_content(), append the date, and then call apply_filters on the result. This is UNTESTED, but it should be close:

$date = the_time('j-F-Y');
$content = get_the_content() . " $date. " ;
echo apply_filters('the_content',$content);

Hurm. Sadly that didn’t work. The content just comes out without the date.

I’ve been trying add_filter instead of apply_filters all along. Is there an easy way to explain the difference.

Thanks for having a look at this.

Terry

I’m sorry, I should have used get_the_time() instead of the_time().

add_filter registers a filter for a group with WP, to be called along with all the other filters for the same filter group.

apply_filters actually executes all the filter functions that have been registered.

Thanks for the apply vs. add explanation. I didn’t even realize there was an apply_filters. Great.

Sadly again, however, even with get_the_time() the code isn’t doing as it should.

To be completely clear, I have the following pasted as-is into functions.php:

$date = get_the_time('j-F-Y');
$content = get_the_content() . " $date. " ;

echo apply_filters('the_content', $content);

But still, it doesn’t modify anything.

Appreciate the help very much,

Terry

Some of the code does work, however.

If I put this in instead:

$test_string = "Test string to see if the filter works";
$content = get_the_content() . $test_string ;

echo apply_filters('the_content', $content);

It prints the test string right at the top of the page.

A ha! Interestingly, when I wrap it in php tags and put it in sidebar.php it finally works. Breakthrough!

More experimentation and I’ll post back proper results.

Thanks.

The code I gave you should be a replacement for calling the_content() in the template used to display the page, not a function to go in functions.php.

Thanks a million @vtxyzzy. Works perfectly now. This also gave me a great opportunity to learn about filters! So thanks for that too.

As if I haven’t asked enough questions today, if you know how I might turn the date into a clickable permalink, that would be A++!

I’ve tried a few versions of this, but none have worked so far.

<?php
  $date = get_the_time('d-m-y');
  $content = get_the_content() . "<a href="<?php the_permalink(); ?>">$date</a>" ;

  echo apply_filters('the_content',$content);
?>

I’d hoped that by just putting the permalink in before the date and turning it all into a link it would work….but no avail.

If you have any ideas, I’d love to hear them, otherwise, thanks a whole lot for helping with this today.

Terry

I suspect this is another one of those easily explainable things.

If I try just a plain-text string in before $date it works fine. Like so:

<?php
  $date = get_the_time('d-m-y');
  $content = get_the_content() . "testing" . $date;

  echo apply_filters('the_content',$content);
?>

But trying to put a link in place of the string “testing” doesn’t work:

<?php
  $date = get_the_time('d-m-y');
  $content = get_the_content() . "<a href="#">test link</a>" . $date;

  echo apply_filters('the_content',$content);
?>

So there must be something funny about not being able to put hypertext in there?

My guess is that the filters are stripping out the link. There may be a better way to do this, but give this a try:

<?php
  $date = get_the_time('d-m-y');
  $content = get_the_content() . '$$$';
  $content = apply_filters('the_content',$content);
  $content =  str_replace('$$$'," <a href='#'>test link</a> " . $date);
  echo $content;
?>