PHP中如何过滤key的值？

Question

我有一个包含不同键的数组，我想根据值 TRUE 或 FALSE 过滤键。我有麻烦请帮忙。这是我的代码 foreach ($combine as $data) {       unset($data['user_name'], $data['date']);       if (array_values($data) == TRUE) {            pr(array_keys($data));       }  }这是数组 Array    (        [microsoft] => FALSE        [health_care] => TRUE        [nasa_cerification_type_i] => TRUE        [nasa_cerification_type_ii] => TRUE        [nasa_cerification_type_iii] => TRUE    )

Answer 1

我认为这就是你想要做的：

foreach($combine as $data){

    unset($data['user_name'], $data['date']); //we don't need these

    $valid = [];

    foreach($data as $n => $v){

        if($v === true){ //be careful! Are the values really boolean? then use ===, otherwise use ==

            $valid[] = $n;

        }

    }

    //do something with $valid

    print_r($valid); //etc..

}

Answer 2

$trueArray=array_filter($array, function ($ar){

return ($ar==true);

});

$falseArray=array_filter($array, function ($ar){

return ($ar==false);

});

print_r($trueArray);