php多维数组键

Question

大家好，我在使用 php 数组时遇到了一些麻烦。 给定一个数组 $all_array 并且当我 var_dump 它时，php 会在下面显示这些信息。

   Array ( 
         [0] => Array ( 
             [textQm_id] => 8 
             [textQtxt] => lorem ipsu dolor  title 1 
         ) 
    )

    Array ( 
        [0] => Array ( 
             [questionQs_id] => 17 
             [questionQm_id] => 8 
             [questionQsuraq] => Lorom ipsum dolor question 1? 
        ) 
    )

    Array ( 
        [0] => Array ( 
             [questionQs_id] => 18 
             [questionQm_id] => 10 
             [questionQsuraq] => Lorom ipsum dolor question 2? 
        ) 
    )
    .
    .
    .

    Array ( 
         [0] => Array ( 
             [textQm_id] => 9 
             [textQtxt] => lorem ipsu dolor  title 9 
         ) 
    )...

如何获取 textQtxt 值？

Answer 1

   Array ( 
             [0] => Array ( 
// try to get the key by index I believe is index 1, then compare key word with the keyword you have of textQtxt then you fetch the value

    if ( [key index] == "textQtxt" )
    
                 {
                   //get the value 
                 }
    
             ) 
    )

Answer 2

环顾函数array_column ，看起来像是您问题的精确解决方案。 否则尝试“展平”数组，然后查找值。