Question

嗨，我有php数组，我正在While循环中运行foreach

    if ( $the_query->have_posts() ) { 

    while ($the_query->have_posts()) { 
        $the_query->the_post();
        $get_the_ids[]= get_the_ID();


        $terms = wp_get_post_terms( get_the_ID(), 'wpcm_alimentazione',array("fields" => "all") );


        foreach ($terms as $key_term => $value_term) {
            $post_data.= "<option value='{$value_term->term_id}'>{$value_term->name}</option>";
        }


        //

    }


}

print_r($post_data);

这些条件变量的输出是这样的

Array
(
    [0] => WP_Term Object
        (
            [term_id] => 15
            [name] => Gasolina
            [slug] => gasolina
            [term_group] => 0
            [term_taxonomy_id] => 15
            [taxonomy] => wpcm_alimentazione
            [description] => 
            [parent] => 0
            [count] => 2
            [filter] => raw
        )

)
Array
(
    [0] => WP_Term Object
        (
            [term_id] => 17
            [name] => Diesel
            [slug] => diesel
            [term_group] => 0
            [term_taxonomy_id] => 17
            [taxonomy] => wpcm_alimentazione
            [description] => 
            [parent] => 0
            [count] => 2
            [filter] => raw
        )
[1] => WP_Term Object
        (
            [term_id] => 25
            [name] => LPG
            [slug] => LPG
            [term_group] => 0
            [term_taxonomy_id] => 25
            [taxonomy] => wpcm_alimentazione
            [description] => 
            [parent] => 0
            [count] => 2
            [filter] => raw
        )

)
Array
(
    [0] => WP_Term Object
        (
            [term_id] => 17
            [name] => Diesel
            [slug] => diesel
            [term_group] => 0
            [term_taxonomy_id] => 17
            [taxonomy] => wpcm_alimentazione
            [description] => 
            [parent] => 0
            [count] => 2
            [filter] => raw
        )

)

现在我正在获取柴油的重复条目，因此它被打印了两次，我不想删除我尝试过的重复条目array_unique，但是由于它是数组中的对象，所以它不起作用，我也尝试过

$term_id =  get_the_ID();
if($term_id ==  get_the_ID()){
continue;
}

在循环的开始和结束。但是它不起作用，我想跳过重复的值并打印下一个。

Answer 1

有一个单独的数组来维护terms_ids以检查重复项

$terms_array = array();

循环并打印时，

只需检查它是否存在于$ terms_array中

while ($the_query->have_posts()) {
if(in_array($term_id, $terms_array))
{
   continue; 
}
just add that term_id to an array after checking
$terms_array[$term_id] = $term_id;

// All your normal code here
}

删除多维数组中的重复项

1 个答案: