把多個值到json_encode

Question

我使用多個SQL查詢的數組，然後使用foreach循環運行查詢：

foreach($sql as $query) { 
    $rs=mysql_query($query, $conn); 
    if(mysql_num_rows($rs) > 0){ 
     while($result=mysql_fetch_assoc($rs)) { 
      $json_arr["id"] = $result['sequence']; 
      $json_arr["value"] = $result['company']; 
      $json_arr["label"] = $result['company']; 
      array_push($display_json, $json_arr); 
     } 
    } else { 
     $json_arr["id"] = "#"; 
     $json_arr["value"] = ""; 
     $json_arr["label"] = "No Result Found!"; 
     array_push($display_json, $json_arr); 
    } 
} 

然後我需要使用json_encode並打印結果，如：

$jsonWrite = json_encode($display_json); //encode that search data 
print $jsonWrite; 

我該如何爲所有查詢結果做一個json_encode？

Answer 1

foreach($sql as $query) { 
    $rs=mysql_query($query, $conn); 
    if(mysql_num_rows($rs) > 0){ 
     while($result=mysql_fetch_assoc($rs)) { 
      $json_arr["id"] = $result['sequence']; 
      $json_arr["value"] = $result['company']; 
      $json_arr["label"] = $result['company']; 

     } 
     array_push($display_json, $json_arr); 
    } else { 
     $json_arr["id"] = "#"; 
     $json_arr["value"] = ""; 
     $json_arr["label"] = "No Result Found!"; 
     array_push($display_json, $json_arr); 
    } 
} 

將第一個array_push移動到while循環之外，如上所述，將防止您看到的重複。