Question

我有一个循环从我的数据库中提取信息。如何在不使用jQuery的情况下将类添加到第一行？

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

你需要一个计数器（$ i）：

             $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

继续数？

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

Answer 3

如果您只想知道它是否是第一行，那么根据定义，布尔值将是合适的而不是计数器。如果get_post_custom_keys()在任何行上评估为false，这将有效。

<?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;

?>

将类添加到第一行PHP

3 个答案: