Graphing with PHP using GD - error !

coool

hey guys,

I'm having problem when I'm excuting this code

PHP Code:


			
<?php

        header ("Content-type: image/jpg");

        $img_handle = ImageCreate (230, 20) or die ("Cannot Create image");

        $back_color = ImageColorAllocate ($img_handle, 0, 10, 10);

        $txt_color = ImageColorAllocate ($img_handle, 233, 114, 191);

        ImageString ($img_handle, 31, 5, 5,  "My first Program with GD", $txt_color);

        ImagePng ($img_handle);

?>

This is the output:

Code:

‰PNG  IHDRæ£þÓêPLTE ér¿`ŽLÚIDAT(‘åÐ±AàŸMhF®!ža’+(„WÙË&ª;‘xë”Z…‡Ði'J*D£RÑ+®0wÁ¯`«ÙýòÏfø³Sc CYeŸGEý˜õà«*T,(´ªšðñ£Peí|&H»;?&¦±éÖ³½54IÇ%¥öÉé¿×‘[¢•!‘i¡)1kg$;ÇP E‚˜o™¶²,{»—z÷·†…Âå:`Ž¾´¹Ì”¨Ž,³fSñƒ8Ÿ¨Æ7È½íEµ¯E´ª,ÒNçÛ@µ4&‚øg••Gé2ü¶'€£D?Ñ<_FIEND®B`‚

what's wrong with my code !

do you have any clue ?

pradeep

You are sending a image/png mime header but sending a PNG image data!
Change the header to

Code: PHP

header ("Content-type: image/png");

coool

I've changed the header..

same problem..

pradeep

Code: PHP

<?php
         ob_start();
         header ("Content-type: image/png");
         $img_handle = ImageCreate (230, 20) or die ("Cannot Create image");
         $back_color = ImageColorAllocate ($img_handle, 0, 10, 10);
         $txt_color = ImageColorAllocate ($img_handle, 233, 114, 191);
         ImageString ($img_handle, 31, 5, 5,  "My first Program with GD", $txt_color);
         ob_clean(); // clean the output buffer before sending the image data, nothing more than the image data should be sent
         ImagePng ($img_handle);
 ?>

coool

hmmm

I've tried your code.. It doesn't work !

but no worries, cuz the problem is already solved now

I just had to saparate the code..

image.php

PHP Code:


			
<?php

        header ("Content-type: image/jpg");

        $image = ImageCreate (230, 20) or die ("Cannot Create image");

        $back_color = ImageColorAllocate ($image, 1, 10, 10);

        $text_color = ImageColorAllocate ($image, 233, 114, 191);

        ImageString ($image, 31, 5, 5,  "My first Program with GD", $text_color);

        ImagePng ($image);

?>

page.php
<html>
<head></head>
<body>

<img src="image.php"/>

</body>
</html>

coool

okay ! .. now how can have a graph ! with x-axis and y-axis taken from one table in MySQL query !

for example:

FruitsTable
fruitName numberAvailable
Apple 2
Orange 8
Banana 5

I want the x-axis to be my fruitName
and the y-axis to be the numberAvailable of the fruit

Query = "SELECT fruitName, numberAvailable FROM FruitsTable"

then ?

coool

any help ! ..

just give a simple example where I have a graph that has x-axis and y-axis taken form a mySQL query from only one table between two columns

one column --> count(column1)
second column --> actual value of itself

pradeep

Check this out http://www.go4expert.com/showthread.php?t=344

coool Go4Expert Member
13Jul2007,01:10	#1
	hey guys, I'm having problem when I'm excuting this code PHP Code: `<?php header ("Content-type: image/jpg"); $img_handle = ImageCreate (230, 20) or die ("Cannot Create image"); $back_color = ImageColorAllocate ($img_handle, 0, 10, 10); $txt_color = ImageColorAllocate ($img_handle, 233, 114, 191); ImageString ($img_handle, 31, 5, 5, "My first Program with GD", $txt_color); ImagePng ($img_handle); ?>` This is the output: Code: ‰PNG IHDRæ£þÓêPLTE ér¿`ŽLÚIDAT(‘åÐ±AàŸMhF®!ža’+(„WÙË&ª;‘xë”Z…‡Ði'JD£RÑ+®0wÁ¯`«ÙýòÏfø³Sc CYeŸGEý˜õà«T,(´ªšðñ£Peí\|&H»;?&¦±éÖ³½54IÇ%¥öÉé¿×‘[¢•!‘i¡)1kg$;ÇP E‚˜o™¶²,{»—z÷·†…Âå:`Ž¾´¹Ì”¨Ž,³fSñƒ8Ÿ¨Æ7È½íEµ¯E´ª,ÒNçÛ@µ4&‚øg••Gé2ü¶'€£D?Ñ<_FIEND®B`‚ what's wrong with my code ! do you have any clue ?

pradeep Team Leader
13Jul2007,10:08	#2
	You are sending a image/png mime header but sending a PNG image data! Change the header to Code: PHP header ("Content-type: image/png");

coool Go4Expert Member
16Jul2007,10:27	#3
	I've changed the header.. same problem..

coool Go4Expert Member
16Jul2007,20:01	#5
	hmmm I've tried your code.. It doesn't work ! but no worries, cuz the problem is already solved now I just had to saparate the code.. image.php PHP Code: `<?php header ("Content-type: image/jpg"); $image = ImageCreate (230, 20) or die ("Cannot Create image"); $back_color = ImageColorAllocate ($image, 1, 10, 10); $text_color = ImageColorAllocate ($image, 233, 114, 191); ImageString ($image, 31, 5, 5, "My first Program with GD", $text_color); ImagePng ($image); ?>` page.php <html> <head></head> <body> <img src="image.php"/> </body> </html>

coool Go4Expert Member
16Jul2007,20:02	#6
	okay ! .. now how can have a graph ! with x-axis and y-axis taken from one table in MySQL query ! for example: FruitsTable fruitName numberAvailable Apple 2 Orange 8 Banana 5 I want the x-axis to be my fruitName and the y-axis to be the numberAvailable of the fruit Query = "SELECT fruitName, numberAvailable FROM FruitsTable" then ?

Graphing with PHP using GD - error !

Already a member?

Not a member yet?

Search Go4Expert

Latest Forum Topics

Find Us On Facebook

Latest Articles

coool Go4Expert Member
18Jul2007,01:32	#7
	any help ! .. just give a simple example where I have a graph that has x-axis and y-axis taken form a mySQL query from only one table between two columns one column --> count(column1) second column --> actual value of itself

pradeep Team Leader
18Jul2007,10:06	#8
	Check this out http://www.go4expert.com/showthread.php?t=344

User Name:		Save
Password