note 60410 added to ref.image

While I was searching for a good way to draw a graph, I stumbled on skumar2k15's script. I have taken the liberty to improve multiple aspects of it. 1. The array can grow and shrink in size, the graph will adjust accordingly. 2. All the values in the array are recalculated so they won't get bigger than the height of the graph. 3. I inserted the possibility to keep a percentage off the height away from the edge. 4. You can adjust the size of the grid. 5. Everything will adjust when you change the height of width. <? header("Content-type: image/png"); // Define variables $Values=array(50,90,30,155,50,40,320,50,40,86,240,128,650,540,320); $imgWidth=500; $imgHeight=200; $grid=25; $graphspacing=0.05; //Creation of new array with hight adjusted values while (list($key, $val) = each($Values)) {if($val>$max){$max=$val;}} for ($i=0; $i<count($Values); $i++){ $graphValues[$i] = $Values[$i] * (($imgHeight*(1-$graphspacing))/$max); } // Create image and define colors $image=imagecreate($imgWidth, $imgHeight); $colorWhite=imagecolorallocate($image, 255, 255, 255); $colorGrey=imagecolorallocate($image, 192, 192, 192); $colorBlue=imagecolorallocate($image, 0, 0, 255); // Create border around image imageline($image, 0, 0, 0, $imgHeight, $colorGrey); imageline($image, 0, 0, $imgWidth, 0, $colorGrey); imageline($image, $imgWidth-1, 0, $imgWidth-1, $imgHeight-1, $colorGrey); imageline($image, 0, $imgHeight-1, $imgWidth-1, $imgHeight-1, $colorGrey); // Create grid for ($i=1; $i<($imgWidth/$grid); $i++) {imageline($image, $i*$grid, 0, $i*$grid, $imgHeight, $colorGrey);} for ($i=1; $i<($imgHeight/$grid); $i++) {imageline($image, 0, $i*$grid, $imgWidth, $i*$grid, $colorGrey);} // Create line graph if($imgWidth/$grid>count($graphValues)){$space=$grid;} else{$space = $imgWidth/(count($graphValues)-1);} for ($i=0; $i<count($graphValues)-1; $i++) {imageline($image, $i*$space, ($imgHeight-$graphValues[$i]), ($i+1)*$space, ($imgHeight-$graphValues[$i+1]), $colorBlue);} // Output graph and clear image from memory imagepng($image); imagedestroy($image); ?> ---- Manual Page -- http://www.php.net/manual/en/ref.image.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+60410 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+60410&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+60410&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+60410&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+60410&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+60410&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+60410&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+60410&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+60410&report=yes Search -- http://master.php.net/manage/user-notes.php