Checking if individual variable is empty from an array PHP

Question

How do I check if only 1 individual variable of the array is empty? I would need an element to display or not, depending on if there is content in the variable. Problem is, if I add more than one variable, it hides/shows the element for all, instead of individually. Any help appreciated.

What works:

PHP:

<?php
$texta = CFS()->get( 'sometexta' );

if ($texta !='') {
  $display = 'block';
} else {
  $display = 'none';
}
?>

HTML:

<div class="element" style="display:<?php echo $display; ?>">
   <p><?php echo $texta; ?></p>
</div>
....

What I would like to work:

PHP:

<?php
$texta = CFS()->get( 'sometexta' );
$textb = CFS()->get( 'sometextb' );
$textc = CFS()->get( 'sometextc' );

$alltext = array($texta, $textb, $textc);

foreach ( $alltext as $text) {
  if ($text !='') {
    $display = 'block';
  } else {
    $display = 'none';
  }
}
?>

HTML:

<div class="element" style="display:<?php echo $display; ?>">
   <p><?php echo $texta; ?></p>
</div>
<div class="element" style="display:<?php echo $display; ?>">
   <p><?php echo $textb; ?></p>
</div>
<div class="element" style="display:<?php echo $display; ?>">
   <p><?php echo $textc; ?></p>
</div>
....

(1) In your example (3 DIVs ), all of them are using the SAME variable $display to determine the display style (block or none) (2). What do you expect the $display variable value be after the end of the foreach loop ? [Hint: will it be determined by the last one of the iteration ?) — Ken Lee
– Ken Lee, Commented Dec 23, 2021 at 12:50
Yes, that's the point....Hence, why its going through a loop. I know there's a specific way to do it, without writing different variables for each element. What do I need to do to the loop or the array, so they share the same variable but behave differently? — thx1138
– thx1138, Commented Dec 23, 2021 at 12:57

Arif Khan · Accepted Answer · 2021-12-23 13:07:34Z

2

Something like this:

PHP

<?php
  $texta = CFS()->get( 'sometexta' );
  $textb = CFS()->get( 'sometextb' );
  $textc = CFS()->get( 'sometextc' );

  $alltext = array($texta, $textb, $textc);

  $display = [];
  foreach($alltext as $text){
    if ($text !='') {
      $display[] = 'block';
    } else {
      $display[] = 'none';
    }
  }
?>

HTML

<div class="element" style="display:<?php echo $display[0]; ?>">
   <p><?php echo $texta; ?></p>
</div>
<div class="element" style="display:<?php echo $display[1]; ?>">
   <p><?php echo $textb; ?></p>
</div>
<div class="element" style="display:<?php echo $display[2]; ?>">
   <p><?php echo $textc; ?></p>
</div>

answered Dec 23, 2021 at 13:07

Arif Khan

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Comments

Jacotdv · Accepted Answer · 2021-12-23 13:43:07Z

0

Personally I will try for something like this :

<div class="element" style="display:<?php ($texta!="") ? echo "block" : echo "none"; ?>">
   <p><?php echo $texta; ?></p>
</div>
<div class="element" style="display:<?php ($textb!="") ? echo "block" : echo "none"; ?>">
   <p><?php echo $textb; ?></p>
</div>
<div class="element" style="display:<?php ($textc!="") ? echo "block" : echo "none"; ?>">
   <p><?php echo $textc; ?></p>
</div>

answered Dec 23, 2021 at 13:43

Jacotdv

11 bronze badge

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