出力データをフィルタリングする方法JSON foreach with php？

Question

私は、次のデータを持っている：

$data = ' 
[{"kode":"AX5","harga":"6200","status":"1"}, 
{"kode":"AX10","harga":"11250","status":"1"}, 
{"kode":"AX25","harga":"25750","status":"1"}, 
{"kode":"AX50","harga":"50800","status":"1"}, 
{"kode":"AX100","harga":"100600","status":"1"}, 
{"kode":"B25","harga":"25500","status":"1"}, 
{"kode":"B50","harga":"49800","status":"1"}, 
{"kode":"B100","harga":"99100","status":"1"}, 
{"kode":"B150","harga":"147850","status":"1"}, 
{"kode":"B200","harga":"196600","status":"1"}, 
{"kode":"C5","harga":"4750","status":"2"}, 
{"kode":"C10","harga":"9775","status":"2"}, 
{"kode":"C20","harga":"19850","status":"2"}, 
{"kode":"C50","harga":"50100","status":"2"}, 
{"kode":"C100","harga":"100050","status":"2"}, 
{"kode":"E5","harga":"5100","status":"1"}, 
{"kode":"E10","harga":"10425","status":"1"}, 
{"kode":"E25","harga":"25350","status":"1"}]' 

次のコード・スニペットはkodeからすべての値を返します。

$hasil = json_decode($data); 
foreach ($hasil as $hasilz) { 
    echo $hasilz->kode . PHP_EOL; 
} 

私は、コードをフィルタリングし、以下の値のみ（AXとC）を表示します：

AX5 AX10 AX25 AX50 AX100 
C5 C10 C20 C50 C100 

どのボディでもフィルタリングできます$hasilz->kode w ith foreach？

Answer 1

substr（）メソッドを使用して、ストリングのパターンとストリングの長さを知っている場合はストリングの内容を確認してください。

foreach ($hasil as $hasilz) { 
    if(substr($hasilz->kode,0,2)=="AX"||substr($hasilz->kode,0,1)=="C"){ 
    echo $hasilz->kode . PHP_EOL; 
    } 
} 

$hasilz->kode[0]=='A' and $hasilz->kode[0]=='C'を使用して、最初の文字を確認することもできます。
またstrstr()を使用することができます - 1は、AX [番号]とC [番号]のためにあるの下に、文字列

Answer 2

Here is online regex testerの最初の出現を検索します。

foreach(json_decode($data) as $hasilz) 
{ 
    if(preg_match("/^(AX|C)\d+$/",$hasilz->kode)) 
      echo $hasilz->kode . PHP_EOL; 
} 

スクリプト

[akshay@gold tmp]$ cat test.php 
<?php 
$data = ' 
[{"kode":"AX5","harga":"6200","status":"1"}, 
{"kode":"AX10","harga":"11250","status":"1"}, 
{"kode":"AX25","harga":"25750","status":"1"}, 
{"kode":"AX50","harga":"50800","status":"1"}, 
{"kode":"AX100","harga":"100600","status":"1"}, 
{"kode":"B25","harga":"25500","status":"1"}, 
{"kode":"B50","harga":"49800","status":"1"}, 
{"kode":"B100","harga":"99100","status":"1"}, 
{"kode":"B150","harga":"147850","status":"1"}, 
{"kode":"B200","harga":"196600","status":"1"}, 
{"kode":"C5","harga":"4750","status":"2"}, 
{"kode":"C10","harga":"9775","status":"2"}, 
{"kode":"C20","harga":"19850","status":"2"}, 
{"kode":"C50","harga":"50100","status":"2"}, 
{"kode":"C100","harga":"100050","status":"2"}, 
{"kode":"E5","harga":"5100","status":"1"}, 
{"kode":"E10","harga":"10425","status":"1"}, 
{"kode":"E25","harga":"25350","status":"1"}, 
{"kode":"CXX25","harga":"25350","status":"1"}]'; 

foreach(json_decode($data) as $hasilz) 
{ 
    if(preg_match("/^(AX|C)\d+$/",$hasilz->kode)) 
      echo $hasilz->kode . PHP_EOL; 
} 
?> 

出力

[akshay@gold tmp]$ php test.php 
AX5 
AX10 
AX25 
AX50 
AX100 
C5 
C10 
C20 
C50 
C100 

Answer 3

このソリューションは、アカウントにarray_filterを使用して、より機能的なパラダイムをとります。ああPHPは、したがって1つのforeachのが容易に回避されていませんでした、some nativlyをサポートしていません。

<?php 
$data = '[{"kode":"AX5","harga":"6200","status":"1"}, 
{"kode":"AX10","harga":"11250","status":"1"}, 
{"kode":"AX25","harga":"25750","status":"1"}, 
{"kode":"AX50","harga":"50800","status":"1"}, 
{"kode":"AX100","harga":"100600","status":"1"}, 
{"kode":"B25","harga":"25500","status":"1"}, 
{"kode":"B50","harga":"49800","status":"1"}, 
{"kode":"B100","harga":"99100","status":"1"}, 
{"kode":"B150","harga":"147850","status":"1"}, 
{"kode":"B200","harga":"196600","status":"1"}, 
{"kode":"C5","harga":"4750","status":"2"}, 
{"kode":"C10","harga":"9775","status":"2"}, 
{"kode":"C20","harga":"19850","status":"2"}, 
{"kode":"C50","harga":"50100","status":"2"}, 
{"kode":"C100","harga":"100050","status":"2"}, 
{"kode":"E5","harga":"5100","status":"1"}, 
{"kode":"E10","harga":"10425","status":"1"}, 
{"kode":"E25","harga":"25350","status":"1"}]'; 

$data = json_decode($data); 

$wantedKodes = [ 
    'AX', 
    'C', 
]; 

$filtered = array_filter(
    $data, 
    function ($object) use ($wantedKodes) { 
     foreach ($wantedKodes as $kode) { 
      if (strpos($object->kode, $kode) === 0) { 
       return true; 
      } 
     } 

     return false; 
    } 
); 

foreach ($filtered as $item) { 
    echo "{$item->kode} \n"; 
} 

出力は次のようになります。

AX5 
AX10 
AX25 
AX50 
AX100 
C5 
C10 
C20 
C50 
C100