condition based action should be changed?

I am using table row details with action column  . In this action once process completed show "completed button" otherwise show  edit icon. 

need suggestion.

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Simply use if … else …, or the ? : operator.

PHP Code:

<?php 
$actionbutton = $row['status'] == 'finished' ? anchor('link1','Completed','class="btn"') : anchor('link2','Edit','class="btn"');
?>

<td><?= $actionbutton;?></td>