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Checkbox conditional error

  • I am wanting to hide a snippet of code if a specific value is checked using ACF “checkbox”

    I have the following code

    <?php if ( !in_array( 'START wages-through-ages', get_field('tours') ) ) { ?>
    
    my stuff
    
    <?php } ?>

    The code executes as planned but i also get this error
    “Warning: in_array() expects parameter 2 to be array, boolean given in /home2/actu/public_html/worksite.actu.org.au/wp-content/themes/worksite/single.php on line 198”

    line 198 is the line of code above

  • Hi @dvize

    If no checkbox value is selected, the get_field will return false. The in_array function expects an array, not false. This is why you see the error.

    You need to write more bullet proof code like this:

    
    $tours = get_field('tours');
    <?php if ( !empty($tours) || !in_array( 'START wages-through-ages', get_field('tours') ) ) { ?>
    
    my stuff
    
    <?php } ?>
    
  • This had same error with code as is.. I then assumed that the top line needs php tags so i tried:
    <?php $tours = get_field('tours'); if ( !empty($tours) || !in_array( 'START wages-through-ages', get_field('tours') ) ) { ?>
    and

    <?php $tours = get_field('tours');?>
    <?php if ( !empty($tours) || !in_array( 'START wages-through-ages', get_field('tours') ) ) { ?>

    this has stoped working and produced this error:
    Warning: in_array() expects parameter 2 to be array, boolean given in /home2/actu/public_html/worksite.actu.org.au/wp-content/themes/worksite/single.php on line 199

    also is there some way to be notified when you reply…

  • Hi @dvize

    Sorry, the code should have looked more like:

    
    <?php 
    
    $tours = get_field('tours');
    
    <?php if( is_array($tours) && in_array( 'START wages-through-ages', $tours ) ): ?>
    	
    	<?php // the user has selected 'START wages-through-ages' checkbox. Do nothing ?>
    	
    <?php else: ?>
    
    	<?php // my stuff ?>
    	
    <?php endif; ?>
    
    
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