How To

[Samuelito]

How do i install the GD2 library because I'm Trying to used with this example:

<script language="php">

 $im = @imagecreate( 150, 100)
	or die ( "Cannot create a new GD image.");
$background_color  = imagecolorallocate($im, 255,  255, 255);
$text_color  = imagecolorallocate($im, 233,  14, 91);
imagestring($im, 1,  5, 5,  "A Simple Text String", $text_color );
//header ("Content-type: image/png");
imagepng($im)
//ImagePng ($im);

</script>

Which i dont think is nothing wrong, and i reacieve this message without drawing

‰PNG

and i dont undertand what is worng!!

[zabmilenko]

Find a PNG image on the internet and download it. Then open it up in notepad (or similar) and tell me what you see...

If you generate a PNG image inline with your html document, you are asking the server to simply dump the contents of the PNG with the standard output.

You need to do 2.5 things:

a) Add a header("Content-type: image/png"); to the script before any output

b) make this image script a file like: image.php and load it using html <img /> tag.

c) (recommended) Don't use <script language="php"> as it is deprecated. Use <?php ?> or <? ?> instead.

[Weedpacket]

Regarding point c). Quoth the manual: http://www.php.net/manual/en/language.basic-syntax.php

There are four different pairs of opening and closing tags which can be used in php. Two of those, <?php ?> and <script language="php"> </script>, are always available. The other two are short tags and ASP style tags, and can be turned on and off from the php.ini configuration file. As such, while some people find short tags and ASP style tags convenient, they are less portable, and generally not recommended.

<script language="php"> exists for the sake of people with editors that are too thick to cope with <?php. If that isn't a problem, then <?php is standard, and recommended.

Just to add to point a); apart from the headers (including the Content-Type header) the PNG image data should be the only thing that is output.

[zabmilenko]

I know this isn't binding, but my concern is here: http://www.php.net/~derick/meeting-notes.html#remove-support-for-and-script-language-php-and-add-php-var

They don't actually mention the fate of <script language="php"></script> in these notes, but it's obvious that they don't like it or it wouldn't have come up. Even though the plan is to "keep the stuff in place" anyway, I just feel it's recommended to stick with the <?php ?> tags.

Funny thing is I don't know why I put <? ?> there, because I normally would never touch short tags like that anyway...

[Weedpacket]

Yes, I kept a copy of that; the fact that they didn't mention it implies the the status quo. Combine that with the fact that PHP6 does in fact have it.....