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'); ?> -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php