Eliminar Doble comilla de un array

[[^_WebMaster^_]]

SOLUCIONADO:

$prefix = '';
echo "[\n";
while ( $row = mysqli_fetch_assoc( $result ) ) {
echo $prefix . " {\n";
echo ' label: "' . $row['tipo_negocio'] . '",' . "\n";
echo ' data: ' . $row['cantidad'] . ',' . "\n";
echo " }";
$prefix = ",\n";
}
echo "\n]";