NYCPHP Meetup

Tue Mar 4 09:12:31 EST 2008

Why are you using JSP (Java servlet pages) alongside PHP?

Either way, your problem is probably related to not sending headers
along with the image. If you're generating the chart, make sure it's
sending mime-type (Content-type) headers before sending the binary PNG
data. Otherwise the browser doesn't know what it's receiving and it
will garble it.

It's been a couple of years since I've written Java applications, but
the relevant PHP function is here:
http://us3.php.net/header
Take a look at Example #1.

- Brian

On Tue, Mar 4, 2008 at 2:43 AM, Néstor <rotsen at gmail.com> wrote:
>  I am in need of help. I have created a chart PHP portlet and I am able to
> deploy. The problem is that the PNG image file
> displays as binary. I know that the file is created and is there and I can
> open it with my browser and it displays the Pie chart
>
> My php code:
> <html xmlns="http://www.w3.org/1999/xhtml">
> <head>
>  <title>Libchart pie chart demonstration</title>
>  <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-15" />
> </head>
> <body>
>  <img alt="Pie chart" src="<%=renderRequest.getContextPath()%>/demo3.png" />
>  </body>
> </html>
>
> I read in some articles that you need to use the jsp code
> <%=renderRequest.getContextPath()%>
> but is not working. I also try it without the JSP code and I get the same
> result.
>
> This is what is displayed
> -----------------
> �PNG ��� IHDR�� X���� ����O�G�� ]IDATx���}�U��� ��pI��]�" ���KE"
> l*Y�X�T�&Z�BL� ����E;� !m�1�HcT ���n0 Q�� ��M6��d��5�Y ���R
> l�p��͝q�3s�s�s��''f� 3�� ���wϝ�? @�z�'�@ @ @ @ ?u��� ��
> 8x���.��ǧ�Zv�sN<�kSf_z޲�M�_ �s��7�����M����=a���#�0�������s� �7/ !��
> �eW��I3>M�䙋��v��g�ye� �ݷ T!���Y�`L 3����O�� �m��p�!< �o4*8��l�m; �� ���
> >�`�ĉB @5B8����� �M�7=��㢟
> <A bunch of other stufff and then the last part of what it is displayed>
> ��!�H �1{�m� va2�����" g# B��� ag'�̋�O��Z �l� �u� KZ 3,b �Kp �� � �
> #,o5̧���_��`�� �0�����0�(�2~)ρ�6B �\6�h�a]�X��? � �FX��fQ�G� � �FX�� Q�A�*�
> � �FX���u�h� � �F��vX�4V�yU� m�`#�n;�D �]��@ !� �� � �v�N�٫� h# ��0�#����
> (�`#4 a�'@ !� -�B���g# � Q ���l�`#4" a�� l��D!�w� ��Р(���~6B� � s �ۃ�
> l���*���6B� RՉ��g# !� f�2Z�l� �6¬ HÞ� ��F 6B B !� A m�`# !� �� ��F 6B B !�
> �F � �F � �F � �F � �F � �F � ��! �� $ � ��� ���Y� ! !�R @ @ @ @ @ @ @ @ @ @
> @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ B� B� B� B��ȟ��9��(e�����IEND�B`�
> Pie chart
> document.getElementById("p_p_id_libchartportlet_WAR_libchartportlet_").portletId
> = "libchartportlet_WAR_libchartportlet";
> document.getElementById("p_p_id_libchartportlet_WAR_libchartportlet_").columnPos
> = 5; if (!Liferay.Portlet.isAjax("libchartportlet_WAR_libchartportlet")) {
> Liferay.Portlet.process("libchartportlet_WAR_libchartportlet"); } jQuery(
> function() { Liferay.Util.portletTitleEdit( { obj:
> jQuery("#p_p_id_libchartportlet_WAR_libchartportlet_"), plid: "10133",
> doAsUserId: "", portletId: "libchartportlet_WAR_libchartportlet" } ); } );
> -----------------
>
> I do not get all of the the javascript stuff after "Pie chart" above if I do
> not use the JSP code.
>
>
> Any ideas of what is wrong with my PHP displaying of the PNG file.
>
> Thanks,
>
> rotseN
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