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检查数组 PHP 中的单个变量是否为空

[英]Checking if individual variable is empty from an array PHP

如何检查数组中是否只有 1 个单独的变量为空? 我需要一个元素来显示或不显示,这取决于变量中是否有内容。 问题是,如果我添加多个变量,它会隐藏/显示所有元素,而不是单独显示。 任何帮助表示赞赏。

什么有效:

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>
....

我想做什么:

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>
....

像这样的东西:

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>

我个人会尝试这样的事情:

<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>

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