PHP不同的2个数组和使用条件进行比较

Question

I have 2 arrays follow this:

Array A

Array
(
       [0] => Array
            (
                [TD_CODE] => 24203
                [CRS_NAME] => Adobe Photoshop CS6+CC            
            )

        [1] => Array
            (
                [TD_CODE] => 24202
                [CRS_NAME] => Advance Microsoft excel 2010/2007
            )

        [2] => Array
            (
                [TD_CODE] => 24197
                [CRS_NAME] => Beginning Auditor Tools and Techniques

            )
    );

And Array B

Array
(
    [0] => Array
        (
            [crs_id] => 1
            [crs_ia_id] => 2017-6495
            [crs_oracle_id] => 24653
            [crs_name] => Windows8          
            [crs_start_date] => 2017-08-07
            [crs_end_date] => 2017-08-11

        )

    [1] => Array
        (
            [crs_id] => 2
            [crs_ia_id] => 2017-5013
            [crs_oracle_id] => 24202
            [crs_name] => Advance Microsoft excel 2010/2007
            [crs_start_date] => 2017-02-08
            [crs_end_date] => 2017-02-09

        )

)

I want to make array A different array B. The condition is to use TD_CODE of the array A compared to crs_oracle_id of array b And and take it as array C.

So The results are as follows.

Array
(
       [0] => Array
            (
                [TD_CODE] => 24203
                [CRS_NAME] => Adobe Photoshop CS6+CC            
            )

      [1] => Array
            (
                [TD_CODE] => 24197
                [CRS_NAME] => Beginning Auditor Tools and Techniques

            )
    );

How should I do?

Answer 1

Get ids from second array which needs to be rejected, then add only those records which doesn't exists in this id array,

$rejected_ids = array_column($b,'crs_oracle_id');
$c = [];
foreach($a as $v){
    if(!in_array($v['TD_CODE'], $rejected_ids)){
        $c[] = $v;
    }
}

print_r($c);

array_column — Return the values from a single column in the input array

Here is working demo

EDIT

Here is more optimized code,

$c = array_filter($a, function($v,$k) use($rejected_ids){
    return !in_array($v['TD_CODE'], $rejected_ids);
},ARRAY_FILTER_USE_BOTH);

Here is working demo.

array_filter — Filters elements of an array using a callback function

ARRAY_FILTER_USE_BOTH - pass both value and key as arguments to callback instead of the value