MySQL在不同的键下返回具有相同数据的两行

Question

MySQL returning two rows with same data under different keys.

Array
(
    [0] => 1
    [id] => 1
    [1] => Good
    [name] => Good
    [2] => 1.jpg
    [path] => 1.jpg
)

The thing i'm talking about is [0] and [id] have the same data and it returned directly from the query why is this and is there a way to fix it to just return the string key.

My query function.

<?php

class Database
{

    private static $connection = null;

    public function Connect()
    {
        self::$connection = mysqli_connect( "127.0.0.1", "root", "", "image");
        if (mysqli_connect_errno()) { die("Failed to connect to MySQL"); }
    }

    public function custome($query)
    {
        $result = mysqli_query(self::$connection, $query);
        while ($item = mysqli_fetch_array($result)) { $resultArray[] = $item; } return $resultArray[0];
    }

}

?>

Answer 1

When you call mysqli_fetch_array it defaults to MYSQLI_BOTH which returns both numerical and associative indexes.
You probably want either MYSQLI_NUM or MYSQL_ASSOC , not the default MYSQLI_BOTH .

Alternately, use mysqli_fetch_assoc which defaults to an associative array.

Here's the relevant documentation:

• mysqli_fetch_array
• mysqli_fetch_assoc

Answer 2

use mysqli_fetch_assoc instead of mysqli_fetch_array to retrieve assocaitive(key/value) array

 public function custome($query)
  {
            $result = mysqli_query(self::$connection, $query);
            while ($item = mysqli_fetch_assoc($result))
             {
                  $resultArray[] = $item; 
             } 
     return $resultArray[0];
  }

Answer 3

You can reference an array, called an "association", by identifying the key/value pair of the associative array. The item location in the array is a number myarray[n-1] where n is the size of the array.