如何避免为每个要搜索的值重复编写相同的代码块?
我想通过在另一个多维数组($data)中计数特定值来创建新数组($result)。
我想通过在另一个多维数组($data)中计数特定值来创建新数组($result)。
$result = array();
$result['Insulin'] = count(array_filter($data,function ($entry) {
return ($entry['choice'] == 'Insulin');
}
)
);
$result['TZD'] = count(array_filter($data,function ($entry) {
return ($entry['choice'] == 'TZD');
}
)
);
$result['SGLT-2'] = count(array_filter($data,function ($entry) {
return ($entry['choice'] == 'SGLT-2');
}
)
);
$data数组示例:array(2) {
[0]=>
array(9) {
["breakout_id"]=>
string(1) "1"
["case_id"]=>
string(1) "1"
["stage_id"]=>
string(1) "1"
["chart_id"]=>
string(1) "1"
["user_id"]=>
string(2) "10"
["region"]=>
string(6) "Sweden"
["choice"]=>
string(7) "Insulin"
["switched_choice"]=>
NULL
["keep"]=>
string(1) "1"
}
[1]=>
array(9) {
["breakout_id"]=>
string(1) "1"
["case_id"]=>
string(1) "1"
["stage_id"]=>
string(1) "1"
["chart_id"]=>
string(1) "1"
["user_id"]=>
string(1) "7"
["region"]=>
string(6) "Sweden"
["choice"]=>
string(7) "Insulin"
["switched_choice"]=>
NULL
["keep"]=>
string(1) "1"
}
}
$keys = array_flip(['胰岛素', 'TZD', 'SGLT-2']);
然后稍后执行if (!isset($keys[$row['choice'])) { continue; }
。 - Ja͢ck