Question

print_r给出：

如何回应_start_date？

我已经知道以下代码将回显post_title

foreach($items as $item => $values) { 
    $_product = $values['data']->post; 
    echo $_product->post_title;
}

Answer 1

print $_product->post_title['8a19c684f653ac779ae1af5340d482bf']['booking']['_start_date'];

但请尝试

function showStruc(&$array,$prefix='$array'){
   foreach($array as $k=>$v){
      echo ($k = $prefix."['$k']"), "<br>";
      if(is_array($v)){
          showStruc($v,$k);
      }
   }
}
showStruc($array);

看到完整的结构（对不起发布英菲尼迪循环，现在可以了）

Answer 2

此关联数组只有一个项目。如果您希望系列中有多个项目，则需要使用foreach，您可以尝试此代码：

from collections import defaultdict
import six


def calc_token_frequencies(doc_list):
    frequencies = defaultdict(int)  # Each dict item will start off as int(0)
    for token_set in doc_list:
        for token in token_set:
            frequencies[token] += 1
    return frequencies


if __name__ == '__main__':
    # Use a list of sets here in order to leverage set features
    tokenized_document_list = [{"egg", "apple", "bread", "milk", "pear"},
                               {"egg", "apple", "bread", "milk"},
                               {"egg", "apple", "bread", "milk"}]

    # Count the number of documents each token was in.
    token_frequencies = calc_token_frequencies(tokenized_document_list)

    # I used 50% here instead of the example 5% so that it would do something useful.
    token_min_docs = 0.5*len(tokenized_document_list)

    # Calculate the black list via set comprehension.
    token_blacklist = {token for token, doc_count in six.iteritems(token_frequencies)
                       if doc_count < token_min_docs}

    # Remove items on the black list
    for doc_tokens in tokenized_document_list:
        doc_tokens.difference_update(token_blacklist)

    print tokenized_document_list

该previuos代码并不完全正常。因为它试图在与数组上的项关联的每个值上查找_start_date变量。只打印一次，因为数字上没有其他值的字段_start_date

否则，如果只是阵列中的一个项目尝试：

 // iterate over the array items (booking, product_id, variation etc)
 foreach($items as $item => $values) { 

      // get the values associated with the items 
      $elem = $values['_start_date']; 

      // if the variable $values has an element  called _start_date
      // will print it
      echo $elem;
}

Answer 3

ty smoqadam

比我想象的要简单

foreach($items as $item => $values) { 
    echo $values['booking']['_start_date'];
}

如何在此数组中回显正确的变量

3 个答案: