My svg works in google chrome and IE,( microsoft edge ).
The problem is firefox assigns the default value 0 to x1. x1 value has been set as 20 to start and is increased by 20 each iteration by stored sessions.
My code is:
for ($k=0; $k<$n;$k++)
{
?>
<line x1 = "<? echo $XLP[$k]; ?>" , y1 = "<? echo $YAB[$k]; ?>" x2 = "<? echo " ", $XLP[$k+1]; ?>" , y2 = "<? echo $YAB[$k+1]; ?>" style="fill:none; stroke:rgb(0,80,255);stroke-width:3" />
<?
}