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I have this command
<?php snippets_value( 'fieldname' ); ?>
How do I add a PHP command within the command? I want to add a WP tag within the above, the tag I want to use is the_slug() so it would read:
<?php snippets_value( the_slug() ); ?>Any help is appreciated as PHP isn’t my strong point
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You’re going to need to elaborate on what you’re trying to acheive. Are you trying to concatenate the 2? grab a value? Append?
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The only way that will work is if the inner function returns a valid value to pass to the outer function. Most WordPress template tags with the naming convention the_{tag}() print (echo) a value, rather than return it (get_the_{tag}() is often the equivalent function that returns the value).
If a function prints a value and returns nothing, you can’t use it to pass a value inside another function call.
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first of all these are functions..
and <?php snippets_value( the_slug() ); ?> will work fine as long as the_slug() returns a value and not echo or print it. 
