How to determine the number of entries in a field

  • Lunatrick

    (@lunatrick)


    9 years, 3 months ago

    I’m sorry, I cannot think of a way to word this in a search to find what I want, and I am fairly remedial at php so this might be super basic knowledge. Basically, I’m looking to use the following to pull up an unordered list of results:

    <?php if(get_field('prevention')): ?>
<ul>
<?php while(has_sub_field('prevention')): ?>
<li><?php the_sub_field('prevention_method'); ?></li>
	<?php endwhile; ?>
</ul>
<?php endif; ?>

    But I need to alter it so that if the sub_field(‘prevention’) only has 1 result, to just display:

    <?php the_sub_field('prevention_method'); ?>

    with no unordered list around it. There will always be at least 1 result because it is a required field. Is there a way to make this happen? I did not write this code, it was given to me this way so I would prefer to keep it as close to the intended format as possible!

Viewing 5 replies - 1 through 5 (of 5 total)
  • Chris Huff

    (@brochris)

    9 years, 3 months ago

    Maybe something like this?

    <?php
if(get_field('prevention')){
    $prevention_array = array();
    while(has_sub_field('prevention')){
        $prevention_array[] = the_sub_field('prevention_method');
        }
    $i = count($prevention_array);
    if($i==1){
        the_sub_field('prevention_method');
        }
    else{
        echo '<ul>';
        foreach ($prevention_array as $prevention_method) {
            echo '<li>' . $prevention_method . '</li>';
            }
        echo '</ul>';
        }
    }
?>

    I haven’t tested this, since I don’t have fields and subfields labelled ‘prevention’ and ‘prevention_method’ but it should work, I think.

    Thread Starter Lunatrick

    (@lunatrick)

    9 years, 3 months ago

    Thank you, thank you, thank you!! That worked!

    Thread Starter Lunatrick

    (@lunatrick)

    9 years, 3 months ago

    Whoops I lied, this is not resolved. It is making the text from the ‘prevention_method’ field appear ABOVE/BEFORE the unordered list (which is blank). Any idea how to get it inside the list?

    Chris Huff

    (@brochris)

    9 years, 3 months ago

    So, just to be clear, is the output of my code something like this?

    Prevention Method 1

<ul></ul>

Prevention Method 2
Prevention Method 3
Prevention Method 4
Prevention Method 5
    Chris Huff

    (@brochris)

    9 years, 3 months ago

    Try this.

    <?php
if(get_field('prevention')){
    $prevention_array = array();
    while(has_sub_field('prevention')){
        $prevention_array[] = get_sub_field('prevention_method');
        }
    $i = count($prevention_array);
    if($i==1){
        the_sub_field('prevention_method');
        }
    else{
        echo '<ul>';
        foreach ($prevention_array as $prevention_method) {
            echo '<li>' . $prevention_method . '</li>';
            }
        echo '</ul>';
        }
    }
?>

    I think the problem was that I was trying to create an array with the_sub_field() when I should have used get_sub_field(), so that it didn’t immediately echo as output. Let me know if that works.

Viewing 5 replies - 1 through 5 (of 5 total)
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