Databases
StackOverflow2013
Postsdbo
POimagepolygon - Generate strange output
Body
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POimagepolygon - Generate strange output
    text
    copied!<p>When try to draw a simple polygon, a strange output happen.</p> <pre><code>&lt;?php // cria uma imagem em branco $image = imagecreate(400, 300); // prenche a cor do fundo $bg = imagecolorallocate($image, 0, 0, 0); // escolhe uma cor para o poligono $col_poly = imagecolorallocate($image, 255, 255, 255); // desenha o poligono imagepolygon($image, array ( 0, 0, 100, 200, 300, 200 ), 3, $col_poly); // envia a imagem header("Content-type: image/png"); imagepng($image); ?&gt; </code></pre> <p><strong>The output is:</strong></p> <pre><code>Warning: Cannot modify header information - headers already sent by (output started at /var/www/drawimage/index.php:2) in /var/www/drawimage/index.php on line 23 </code></pre> <p><strong>what should be the picture looks like this:</strong></p> <pre><code>‰PNG IHDR,×ywPLTEÿÿÿ¥ÙŸÝ1IDAThí•;ŽÜ0D5ë¡À€Ç™C±¡à#è(&lt;åÌýùivWeX»+‘P"úa§8ÑYxä7üä‘&lt;ò-ÒÈKhdþÅ#3¦Ä#EÓwy²È?ñÈû‡ŒðÊÈôb‘0}á‘yMH#ïÏáò~V™yû¥òžV™ç:g\Ö+N&lt;8dmE*³"¬2qšXeâñGD&amp;ú¿ÌŠÊ„÷©ÌŠÊ¬¥He¶ï ÙFŸSf¾p¶iá”ÙN™ý‚Ù;QÊì§L\œ21{‚‘í¹ð¥LØž”2;B)³W¢”9¾Bä|F™¹xA9f…Qæ@eÎëM&lt;pälD(s"Œ2q1ÊÄê DŽ÷Â#„2áxÊœ¡ÌYˆPæú‘kìqeæfáæš\™Á•¹/7ñH@‘»¬ÌàÊÄs+••¹VÀÊ„k+s#°2wX™ìD²¡G•™Õ¥™lNPe2U&amp;¿ÚÄ#Cò6 29‚*ï%ªLì¬H¶^xT&amp;dkP™•ÉË€ÊýBŠ‘Ç”™»›nŠ)Á”)L™òb)»@Ê”¦LÌ7˜2ÑØu"ÅnáH™Pì eJR¦¬)Sµ©Qf6·jªA”©D™úZ©›ÊÔ¢L,·ˆ2ÑÙ+‘j¿ð L¨ö€25(S”iº‹‹4ãî+Ó ¾2Í„øÊ4ˆ¯L{©‰G‚‡´=\eZÄW&amp;Ö¾2 â+#ÍÉÂ#®2¡9q•iW™¶†«ŒÒ\DvOñ”QæÃSFA </code></pre> <p>what is happening?</p>
 

Querying!

 
Guidance
An individual column

Larger individual text columns get their own page to allow for proper reading.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload