php-gdDraw bar chart
<?php
$data = [10, 40, 20, 60, 80, 75];
$im = imagecreatetruecolor(400, 300);
$c_black = imageColorAllocate($im, 0,0,0);
$c_green = imageColorAllocate($im, 46,204,64);
foreach ( $data as $i => $v ) {
imagefilledrectangle($im, ($i + 1) * 50, 250 - $v,
($i + 1) * 50 + 40, 250, $c_green);
}
imagePng($im, '/tmp/image.png');ctrl + c$dataexample data to draw bar chart based on | imagecreatetruecolorcreates true color GD image object with specified width & height |
imageColorAllocatecreates color object to later use in image | imagefilledrectanglecreates filled rectangle |
imagePngsaves image in PNG format to the given path | |
Usage example
<?php
$data = [10, 40, 20, 60, 80, 75];
$im = imagecreatetruecolor(400, 300);
$c_black = imageColorAllocate($im, 0,0,0);
$c_green = imageColorAllocate($im, 46,204,64);
foreach ( $data as $i => $v ) {
imagefilledrectangle($im, ($i + 1) * 50, 250 - $v, ($i + 1) * 50 + 40, 250, $c_green);
}
imagePng($im, '/tmp/image.png');