将数组数据从PHP传递到Javascript

Question

I am fetching an array from a MySQL result into a array variable. I can successfully use a simple php echo line in the javascript beneath to grab the first $row element, but I want to use json_encode to get the whole array at once.

When I do this and try to set a javascript var to the first array element something goes wrong and even the single var method stops working.

<?php
.
.
.
    while($row = $result->fetch_array(MYSQLI_NUM)) {
        $row1 = $row[0];
    }       
?>

<script type="text/javascript">  
    var RowArray = <?php echo json_encode($row); ?>;
    var RA1 = RowArray[0];
    window.alert(RA1);

    var Row1 = '<?php echo $row1; ?>';      
    window.alert(Row1);     
</script>  

Answer 1

Make an array containing all the records:

$rows = [];
while ($row = $result->fetch_array(MYSQLI_NUM))
{
   // do custom modifications to $row if neededed
   $rows[] = $row; // push to array
}

Or just:

$rows = $result->fetch_all(MYSQLI_NUM);

And then use json_encode() with $rows .