有没有办法修复 count() 的第一个输出？

Question

我有一个电影网站，我想计算每个框的链接数，但第一个是 count();输出为 0，之后它将继续实数，这很糟糕这是我的代码：

<div class="links" style="display: none;">
                <?php 
                    $c = 1;
                    $post_something = $link['links'];

                    //This will count the number of links
                $number = count($post_something);


                foreach($post_something as $links){

                //This is the output of the count ?>
                  <p><?php  echo $number  ?></p>

                  <a class="download-button" href="<?php echo $links['link_of_field'] ?>">
                      <?php
                        if(!empty($links['name_field'])){
                            echo $links['name_field'];
                            $c++;
                        } else {?>
                            قسمت <?php echo $c;
                            $c++;
                            ?>
                        <?php }
                      ?>
                  </a>  
                <? }
                ?>
                </div>
                </div>
            <?php }?>

问题是一开始它的输出是0！

这是var_dump

的结果

array(6) {
[0]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E01_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[1]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E02_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[2]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E03_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[3]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E04_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[4]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E05_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[5]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E06_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" } }
array(6) {
[0]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E01_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[1]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E02_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[2]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E03_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[3]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E04_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[4]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E05_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" }
[5]=> array(2) { ["name_field"]=> string(0) "" ["link_of_field"]=> string(176) "dl/1/354830/4272/12426/303e08ccc88e2dd4428117619f226fe19a/series/game_of_thrones/Game_of_Thrones_S08E06_10bit_x265_720p_WEBRip_2CH_PSA_30NAMA.mkv" } }

Answer 1

嗯，从技术上讲，在计算机语言中，所有计数都从 [0] 开始，而不是 [1]。所以你的代码没有问题。如果它从 0 开始，它工作正常。

代码中的这一行 $number = count($post_something); 应该 return 结果的实际数量 returned。

让我试着用一个例子来解释；

在这样的代码中；

<?php
    $cars=array("Volvo","BMW","Toyota");
    $totalCount = count($cars);
    print_r($cars); // this will print Array ( [0] => Volvo [1] => BMW [2] => Toyota )
    echo $totalCount; // this will return 3
?>

所以在上面的示例中，数组从 0 开始打印，但计数产生数组中的项目数，即 3。

我希望这能为您澄清一些事情。如果不愿意，我愿意进一步解释或与您解决这个问题。

有没有办法修复 count() 的第一个输出？

Is there anyway to fix the first output of count()?

php

wordpress

advanced-custom-fields

acfpro