Question

私のデータベースから情報を引き出すループがあります。 jQueryを使用せずに最初の行にクラスを追加するにはどうすればよいですか？

while ($query->have_posts()) : $query->the_post(); 
        if ($keys = get_post_custom_keys()) { 
         echo "<div class='card-prod'><span class='card-title'>"; 
         echo the_title(); 
         echo "</span>"; 

         foreach ((array) $keys as $key) { 
         $keyt = trim($key); 
         if ('_' == $keyt{0} || 'pricing' == $keyt || 'vehicleType' == $keyt || 'coverageRegion' == $keyt || 'locationType' == $keyt) 
          continue; 
         $values = array_map('trim', get_post_custom_values($key)); 
         $value = implode($values,', '); 
         echo "<span class='srch-val'>".apply_filters(" $value\n", $value)."</span>"; 
         } 
         echo "\n"; 
         echo '<img src="wp-content/themes/cafc/images/cards/dummy.png" />'; 
         echo the_excerpt()."</div>";} 
       endwhile; 

Answer 1

あなたは（$ I）そのためのカウンタをする必要があります：あなただけそれが最初の行かどうかを知りたい場合は、定義によって、ブールが適切であろう

   $i=0; 
      while ($query->have_posts()) : $query->the_post(); 
       if ($keys = get_post_custom_keys()) { 
        echo "<div class='card-prod ".($i==0?'yourclasshere':'')."'><span class='card-title'>"; 
        echo the_title(); 
        echo "</span>"; 

        foreach ((array) $keys as $key) { 
        $keyt = trim($key); 
        if ('_' == $keyt{0} || 'pricing' == $keyt || 'vehicleType' == $keyt || 'coverageRegion' == $keyt || 'locationType' == $keyt) 
         continue; 
        $values = array_map('trim', get_post_custom_values($key)); 
        $value = implode($values,', '); 
        echo "<span class='srch-val'>".apply_filters(" $value\n", $value)."</span>"; 
        } 
        echo "\n"; 
        echo '<img src="wp-content/themes/cafc/images/cards/dummy.png" />'; 
        echo the_excerpt()."</div>"; 
        $i++; 
        } 
      endwhile; 

Answer 2

$count = 0; 
foreach ((array) $keys as $key) { 
    if ($count == 0) 
    { 
     //Do something 
    } 
    $count++; 
} 

Answer 3

ではなく、カウンタ。これは、いずれかの行でget_post_custom_keys()がfalseと評価された場合に機能します。

<?php 

$firstClassName = 'myclass'; // to be added to the first row 
$firstRow = true; 

while ($query->have_posts()) : $query->the_post(); 
       if ($keys = get_post_custom_keys()) { 

       $additionalClass = $firstRow ? ' ' . $firstClassName : ''; 

        echo "<div class='card-prod" . $additionalClass . "'><span class='card-title'>"; 
        echo the_title(); 
        echo "</span>"; 

        foreach ((array) $keys as $key) { 
        $keyt = trim($key); 
        if ('_' == $keyt{0} || 'pricing' == $keyt || 'vehicleType' == $keyt || 'coverageRegion' == $keyt || 'locationType' == $keyt) 
         continue; 
        $values = array_map('trim', get_post_custom_values($key)); 
        $value = implode($values,', '); 
        echo "<span class='srch-val'>".apply_filters(" $value\n", $value)."</span>"; 
        } 
        echo "\n"; 
        echo '<img src="wp-content/themes/cafc/images/cards/dummy.png" />'; 
        echo the_excerpt()."</div>"; 

        $firstRow = false; 

        } 
      endwhile; 

?>