php within a php statement

Question

Using Wordpress, i have a plugin that inserts a playable MP3 on the page.

To call that, along with the track details, this code is inserted;

            <?php if (function_exists("insert_audio_player")) {  
              insert_audio_player("[audio:http://thewebsite.com/thetrack.mp3|artists=Artist|titles=Titles]");  
            } ?>

I would like to make this editable from the backend easily, by entering some meta-data. So this;

<?php meta('track-url'); ?>

Along with other various details would replace those that are above.

Unfortunately for me, this;

                <?php if (function_exists("insert_audio_player")) {  
              insert_audio_player("[audio:<?php meta('track-url'); ?>|artists=Jack Presto|titles=Track 1]");  
            } ?>

obviously does not work! This is down to my lack of understanding if PHP - can anyone help?

Cheers!

See PHP: String operators - you need to glue the parts together using ., e.g. "[audio:".meta("track-url")."|artists...." — Pekka
– Pekka, Commented Oct 3, 2011 at 15:04

Matt Williamson · Accepted Answer · 2011-10-03 15:08:03Z

3

Simple! Do this:

<?php if (function_exists("insert_audio_player")) {
   $trackUrl = meta('track-url');
   insert_audio_player("[audio:$trackUrl|artists=Jack Presto|titles=Track 1]");  
} ?>

answered Oct 3, 2011 at 15:08

Matt Williamson

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1 Comment

Infocentre Over a year ago

Ok, so i went ahead and read the linked part and remembered seeing something similar and kind of combined them all and came out with this; <?php $trackartist=get_post_meta($post->ID, 'track-artist', true); ?> <?php $trackname=get_post_meta($post->ID, 'track-name', true); ?> <?php $trackurl=get_post_meta($post->ID, 'track-url', true); ?> <?php if (function_exists("insert_audio_player")) { insert_audio_player("[audio:$trackurl|artists=$trackartist|titles=$trackname]"); } ?> It works, but probably not as clean as it should be? Cheers!

Robert Martin · Accepted Answer · 2011-10-03 15:11:48Z

0

I can't tell if the meta() function prints to the screen or returns a string. If it returns a string, do:

<?php
if (function_exists("insert_audio_player")) {  
     insert_audio_player('[audio:' . meta('track-url') . '|artists=Jack Presto|titles=Track 1]');  
}
?>

If it prints to the screen, it's a bit more complicated. Ideally, you would have a function that DOES return a string, but as a quick hack (if you're only getting paid for a quick fix) you could do something like

<?php
if (function_exists("insert_audio_player")) {  
     ob_start();
     meta('track-url');
     $meta = ob_get_contents();
     ob_end_clean();
     insert_audio_player("[audio:$meta|artists=Jack Presto|titles=Track 1]");  
}
?>

answered Oct 3, 2011 at 15:11

Robert Martin

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1 Comment

Marc B Over a year ago

It's wordpress, so any function which produces output generally has a get_whatever() version to RETURN the output instead.

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