{"id":15,"date":"2011-07-07T03:46:25","date_gmt":"2011-07-07T03:46:25","guid":{"rendered":"http:\/\/blog.raghwendra.com\/?p=15"},"modified":"2011-07-07T03:47:53","modified_gmt":"2011-07-07T03:47:53","slug":"create-bar-chart-using-gd-library","status":"publish","type":"post","link":"https:\/\/www.raghwendra.com\/blog\/create-bar-chart-using-gd-library\/","title":{"rendered":"Create Bar Chart Using GD library"},"content":{"rendered":"

GD library is useful for creating 2D charts.<\/p>\n

Graph Image
\n<\/p>\n

Copy and paste this code in your php file
\n<!–\/ By Raghwendra$graphValues=array(50,80,23,11,190,120,50,80,111,210,55);
\n$graphValues_city=array(‘mumbai’,’delhi’,’channai’,’banglore’,’chandigarh’,
\n‘surat’,’kanpur’,’patna’,’hyderabad’,’jammu’,’lacknow’);
\nheader(“Content-type: image\/png”);
\n$imgWidth=1000;
\n$imgHeight=280;
\n\/\/ Create image and define colors
\n$image=imagecreate($imgWidth, $imgHeight);
\n$colorWhite=imagecolorallocate($image, 255, 255, 255);
\n$colorGrey=imagecolorallocate($image, 192, 192, 192);
\n$colorBlue=imagecolorallocate($image, 0, 0, 255);
\n\/\/ Create border around image
\nimageline($image, 0, 0, 0, 250, $colorGrey);
\nimageline($image, 0, 249, 1000, 249, $colorGrey);
\nfor ($i=0; $i<11; $i++)
\n{
\nimagefilledrectangle($image, ($i*80)+10, (250-$graphValues[$i])+1, (($i+1)*80)-20, 248, $colorBlue);
\nimagefttext( $image, 10, 0, ($i*80)+strlen($graphValues_city[$i]),270, $colorGrey, ‘trebuc.ttf’, $graphValues_city[$i], array(‘lineheight’=>2.0) );
\nimagefttext( $image, 10, 0, ($i*80)+20,244-$graphValues[$i], $colorGrey, ‘trebuc.ttf’, $graphValues[$i], array(‘lineheight’=>2.0) );
\n}
\nimagepng($image);
\nimagedestroy($image);
\n\/\/imagefilledrectangle($image, $i*25, (250-$graphValues[$i]), ($i+1)*25, 250, $colorBlue);
\n\/\/imagefilledrectangle($image, ($i*50)-10, (250-$graphValues[$i])+1, (($i+1)*50)-5, 248, $colorBlue);
\n?><\/p>\n","protected":false},"excerpt":{"rendered":"

GD library is useful for creating 2D charts.<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,6],"tags":[],"class_list":["post-15","post","type-post","status-publish","format-standard","hentry","category-content-management-system","category-open-source-php","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/posts\/15","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/comments?post=15"}],"version-history":[{"count":0,"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/posts\/15\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/media?parent=15"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/categories?post=15"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.raghwendra.com\/blog\/wp-json\/wp\/v2\/tags?post=15"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}