While Natalie's example, was doable, this one takes the cake for me.
Thank you all for your suggestions....
Jerome Houston wrote:
> While Natalie's solution is a valid one, i have another....
>
> first - the error you're getting is because the headers are sent AS
> SOON as you echo, print or output html outside of your <?php ?> tags.
> you're echoing something before you call ob_start();
>
> second- the reason this doesn't work, is because you're trying to
> write binary image bytes into an text html page.... I think what you
> want is something like this (actually 2 scripts):
>
> script1.php :
> <?php
> echo 'Hey<br>';
> echo '<img src="script2.php?theword=Hello+World">';
> ?>
>
> script2.php :
> <?php
> function button($word) {
> ob_start();
> header("Content-Type: image/png");
> $im = ImageCreate(100, 50);
>
> $black = ImageColorAllocate($im, 0, 0, 0);
> $white = ImageColorAllocate($im, 255, 255, 255);
>
> $start_x = 50 - (strlen($word) * ImageFontWidth(5) / 2);
> $start_y = 25 - ImageFontHeight(5) / 2;
>
> ImageString($im, 5, $start_x, $start_y, $word, $white);
>
> ImagePNG($im);
> ImageDestroy($im);
> ob_end_flush();
> }
> button($_GET["theword"]);
> ?>
>
>
> ----Original Message Follows----
> From: "Leotta, Natalie (NCI/IMS)" <[EMAIL PROTECTED]>
>
> You can save them and then call them up, but then you have to use a
> cron or
> something to empty out the folder. Here's how I save it:
>
> //Image created and everything up here, this is the very end of it
> $myTime = time();
> ImagePNG($im, "../spool/jp$myTime.png"); //this creates a unique name
> chmod("../spool/jp$myTime.png", 0666); //leading 0, then the code for the
> mode you want
> ImageDestroy($im);
>
> print "<img src='../spool/jp$myTime.png' border=0 width=\"520\"
> GALLERYIMG=\"NO\" height=\"500\"></td>";
>
> I hope this helps!
>
> -Natalie
>
> -----Original Message-----
> From: Gerard Samuel [mailto:[EMAIL PROTECTED]]
> Sent: Friday, May 24, 2002 2:37 PM
> To: PHP
> Subject: [PHP] image_create(), header.....
>
>
> Im trying to use dynamic buttons, and Im trying to figure out how to get
> around the header call.
> I figure use output buffering, but so far Ive only come up with errors.
> Anyone see a better way or any errors in my code. Thanks
>
> nb: Uncomment the echo() statement to get the error.
> --------------------------------------------------
> <?php
>
> //echo 'Hey<br>';
>
> function button($word) {
> ob_start();
> header("Content-Type: image/png");
> $im = ImageCreate(100, 50);
>
> $black = ImageColorAllocate($im, 0, 0, 0);
> $white = ImageColorAllocate($im, 255, 255, 255);
>
> $start_x = 50 - (strlen($word) * ImageFontWidth(5) / 2);
> $start_y = 25 - ImageFontHeight(5) / 2;
>
> ImageString($im, 5, $start_x, $start_y, $word, $white);
>
> ImagePNG($im);
> ImageDestroy($im);
> ob_end_flush();
> }
>
> button('Hello World');
>
> ?>
>
>
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