如何使用in_array匹配或不匹配codeigniter

Question

我使用codeigniter。我拿到所有商标。我想检查每一个我的平均成绩是否等于或等于F。我想检查每个数组gpa = f / F使用in_array或其他函数，我不使用foreach for

Array
  (
[0] => stdClass Object
    (
        [id] => 5889
        [name] => Dom
        [student_id] => 2018000004
        [roll] => 1
        [class] => 6
        [department] => 
        [subject_type] => 0
        [subject_name] => 24
        [exam_type] => 1
        [exam_year] => 2018
        [full_mark] => 100
        [getmark] => 55
        [gpa] => F
        [log] => 2018-11-06 20:32:33
    )

[1] => stdClass Object
    (
        [id] => 5890
        [name] => Rohim
        [student_id] => 2018000006
        [roll] => 1
        [class] => 6
        [department] => 
        [subject_type] => 0
        [subject_name] => 24
        [exam_type] => 1
        [exam_year] => 2018
        [full_mark] => 100
        [getmark] => 60
        [gpa] => 4
        [log] => 2018-11-05 19:42:26
    )
    )

我要检查。没有任何循环。

 if(in_array('F',$resultList)){
       echo "match";
     }else {
       echo "not match";
    }

Answer 1

如果只需要知道数组中是否有F，则可以将array_column()与in_array()一起使用。

//Create an array of GPA's
$arr_gpa = array_column($array, 'gpa');

if(in_array('F', $arr_gpa)) {
    echo "match";
} else {
    echo "not match";
}