I have PHP file, which I use gnuplot to plot sine graph and save the output, but after running the php file in localhost the output does not save anywhere. Here is the code:
<?php
`echo "set term png;set xrange[-2*pi:2*pi];
set output 'output.png'; plot sin(x)" | gnuplot`;
?>
I use exec()
also instead of above code, but no difference:
exec('echo "set term png;set xrange[-2*pi:2*pi];
set output \'output.png\'; plot sin(x)" | gnuplot');
However I ran the above code in terminal and the output saved in my home directory. When I run the code using PHP the output should be saved in localhost directory but after running the code it seems nothing happening. I gave different path to save the output (like desktop) but still no output.
Any idea what should I do?