echo html only if the variable is not empty [duplicate]

Question

I am trying to print the content of the variable and a <hr> tag after doing a check if the variable is not empty. The <hr> is getting echoed even if the variable is empty.

Here is what I have

<?php if (!empty($content['relationship_graph'])){ 
            print render($content['relationship_graph']);
            echo '<hr>';
          }
         ?>

Not very pro in PHP but looked at some documentation...Cant seem to figure out what I might be doing wrong

What does render() do? Can you echo out $content['relationship_graph'] inside your if statement? — andrewsi
– andrewsi, Commented Aug 9, 2013 at 20:04
@Fred that's totally wrong. It will only echo if the variable is empty. You don't need an else statement if the only other option is to do nothing. — user1596138
– user1596138, Commented Aug 9, 2013 at 20:07
You don't need an else statement for not printing the statement. — Amal
– Amal, Commented Aug 9, 2013 at 20:12
Are you sure that $content['relationship_graph'] is really empty? — user2365865
– user2365865, Commented Aug 9, 2013 at 20:13

Rahul · Accepted Answer · 2013-08-09 20:37:08Z

1

Value in it could be a blank space.

try..

<?php 
    if(!empty($content['relationship_graph']) && $content['relationship_graph']!=''){ 
        print render($content['relationship_graph']);
        echo '<hr>';
    }
?>

edited Aug 9, 2013 at 20:37

user2365865

answered Aug 9, 2013 at 20:21

Rahul

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3 Comments

soum Over a year ago

@Rahul-- Thanks for posting the solution. Apparently it didnt really work. I got it working any way. Thanks :-)

Amal Over a year ago

@soum: if your issue was resolved, consider posting it as an answer to this question.

mickmackusa Over a year ago

$content['relationship_graph']!='' after !empty() is silly if you know what !empty() means.

soum · Accepted Answer · 2013-08-09 20:42:21Z

0

Here is what I ended up doing. It worked.

if($content['relationship_graph']['#markup']['length'] != 0){
                  print render($content['relationship_graph']);
                  echo '<hr>';
              }

answered Aug 9, 2013 at 20:42

soum

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1 Comment

Sven Over a year ago

Note that $content['relationship_graph'] is NOT empty because it is an array with at least one element name '#markup'. Only arrays with no elements inside are considered empty.

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