检查PHP数组中的数组索引是否为1

这段代码拾取一个包含3个索引的数组：

<?php var_dump($the_query1->posts); ?>

array(3) {
      [0]=>
      object(WP_Post)#4451 (24) {
        ["ID"]=>
        int(19163)
        ["post_author"]=>
        string(1) "2"
        ["post_date"]=>
        string(19) "2018-09-28 15:42:12"
        ["post_date_gmt"]=>
        string(19) "2018-09-28 13:42:12"
        ["post_content"]=>
        string(0) ""
        ["post_title"]=>
        string(16) "Global Factories"
        ["post_excerpt"]=>
        string(0) ""
        ["post_status"]=>
        string(7) "publish"
        ["comment_status"]=>
        string(6) "closed"
        ["ping_status"]=>
        string(6) "closed"
        ["post_password"]=>
        string(0) ""
        ["post_name"]=>
        string(16) "global-factories"
        ["to_ping"]=>
        string(0) ""
        ["pinged"]=>
        string(0) ""
        ["post_modified"]=>
        string(19) "2018-11-15 12:41:57"
        ["post_modified_gmt"]=>
        string(19) "2018-11-15 11:41:57"
        ["post_content_filtered"]=>
        string(0) ""
        ["post_parent"]=>
        int(0)
        ["guid"]=>
        string(48) "https://www.zeo.nl/?post_type=cases&p=19163"
        ["menu_order"]=>
        int(0)
        ["post_type"]=>
        string(5) "cases"
        ["post_mime_type"]=>
        string(0) ""
        ["comment_count"]=>
        string(1) "0"
        ["filter"]=>
        string(3) "raw"
      }
      [1]=>
      object(WP_Post)#4448 (24) {
        ["ID"]=>
        int(19167)
        ["post_author"]=>
        string(1) "2"
        ["post_date"]=>
        string(19) "2018-09-21 14:58:50"
        ["post_date_gmt"]=>
        string(19) "2018-09-21 12:58:50"
        ["post_content"]=>
        string(0) ""
        ["post_title"]=>
        string(24) "Warmteservice Groep B.V."
        ["post_excerpt"]=>
        string(0) ""
        ["post_status"]=>
        string(7) "publish"
        ["comment_status"]=>
        string(6) "closed"
        ["ping_status"]=>
        string(6) "closed"
        ["post_password"]=>
        string(0) ""
        ["post_name"]=>
        string(13) "warmteservice"
        ["to_ping"]=>
        string(0) ""
        ["pinged"]=>
        string(0) ""
        ["post_modified"]=>
        string(19) "2018-11-15 12:00:56"
        ["post_modified_gmt"]=>
        string(19) "2018-11-15 11:00:56"
        ["post_content_filtered"]=>
        string(0) ""
        ["post_parent"]=>
        int(0)
        ["guid"]=>
        string(48) "https://www.zeo.nl/?post_type=cases&p=19167"
        ["menu_order"]=>
        int(0)
        ["post_type"]=>
        string(5) "cases"
        ["post_mime_type"]=>
        string(0) ""
        ["comment_count"]=>
        string(1) "0"
        ["filter"]=>
        string(3) "raw"
      }
      [2]=>
      object(WP_Post)#4556 (24) {
        ["ID"]=>
        int(19157)
        ["post_author"]=>
        string(1) "2"
        ["post_date"]=>
        string(19) "2018-09-21 11:26:12"
        ["post_date_gmt"]=>
        string(19) "2018-09-21 09:26:12"
        ["post_content"]=>
        string(0) ""
        ["post_title"]=>
        string(9) "Blauwtulp"
        ["post_excerpt"]=>
        string(0) ""
        ["post_status"]=>
        string(7) "publish"
        ["comment_status"]=>
        string(6) "closed"
        ["ping_status"]=>
        string(6) "closed"
        ["post_password"]=>
        string(0) ""
        ["post_name"]=>
        string(11) "blauwtulp-2"
        ["to_ping"]=>
        string(0) ""
        ["pinged"]=>
        string(0) ""
        ["post_modified"]=>
        string(19) "2018-11-15 12:46:48"
        ["post_modified_gmt"]=>
        string(19) "2018-11-15 11:46:48"
        ["post_content_filtered"]=>
        string(0) ""
        ["post_parent"]=>
        int(0)
        ["guid"]=>
        string(48) "https://www.zeo.nl/?post_type=cases&p=19157"
        ["menu_order"]=>
        int(0)
        ["post_type"]=>
        string(5) "cases"
        ["post_mime_type"]=>
        string(0) ""
        ["comment_count"]=>
        string(1) "0"
        ["filter"]=>
        string(3) "raw"
      }
    }

检查当前索引是否位于位置1的最佳方法是什么？我想返回一个bool来决定元素是应该变为true，还是返回true

我试过这个：

<?php var_dump($the_query1->posts[1] === true); ?>

---

但这是错误的三倍。我需要返回假，真，假。执行检查的最简单方法是什么？

使用foreach循环数据，并在数组键为1时执行条件匹配

foreach ($the_query1->posts as $key => $value) {
    if($key == 1){
        echo '<div class="col-sm-3">';
    } else {
        echo '<div class="col-sm-4">';
    }
    echo '</div>';
}

---

你只是把你的问题发了这么多次，还是这是一个完全不同的问题？这听起来和你之前的2到3个问题完全一样。最后一个问题没有解决我的问题，所以我重新措辞了这个问题。我不想发垃圾邮件。你说当前索引位于位置1是什么意思？需要检查当前索引的代码在哪里？因此我重新措辞了问题-你应该编辑现有问题，使其清晰，而不是编写新问题。当我对$key执行var_转储时，我得到空值。还可以为$value获取NULL。在foreach中进行var_转储。您应该能够看到键的值。我在for循环中进行了var_转储，但在控制台中的任何地方都找不到日志。我还安装了WordPressPHP控制台，即使在那里，也没有日志。为什么呢？