The while in the function that doesn't understand

The while in a function that doesn't understand

    function wuming () {
    Global $mysqli;
    $x = "SELECT * from X";
    $xun = $mysqli->query ($x);
    $i = 0;
    while ($x = $xun->fetch_assoc ()) {
        echo $a = $x [' Name '], $i + +.
        Wumingshengcheng ($a);
    }
}

Wumingshengcheng is a 1 function that generates HTML.
Through the passage of $ A to cycle through the 1 columns of the article.

When executing wuming (); When
Inside the while loop the first, executes the Wumingshengcheng ();
In the loop while also echo $a out but does not execute Wumingshengcheng ();

The result of the output is

$a output succeeded
$a build succeeded
$a output succeeded
And then there's no context.

In while, if Wumingshengcheng ($a) is not executed;
The output is complete. For example, there are 5 records in $ A. can be fully output.

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------Solution--------------------
while ($x = $xun->fetch_assoc ()) {
echo $a = $x [' Name '], $i + +.
Wumingshengcheng ($a);
}
Can this be done?
If it is, that's Wumingshengcheng's problem.
------Solution--------------------


$mysqli->close ();
------Solution--------------------
Then you put out the Wumingshengcheng code.

------Solution--------------------
Didn't you say The last is $mysqli->close ();It?

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