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Showing a image created with the GC lib

开发者 https://www.devze.com 2023-01-02 11:55 出处：网络

i have my test.php: <?php echo \"Image:<br/>\"; include(\'draw.php\'); ?> and my draw.php: <?php

相关专题：drawing php

i have my test.php:

<?php

echo "Image:<br/>";

include('draw.php');

?>

and my draw.php:

<?php

$im开发者_如何学Gog = imagecreate(250,80);

...

header("Content-type: image/jpeg"); imagejpeg($img); imagedestroy($img);

?>

now, visiting test.php tells me that headers is already sent. How do i show the image in draw.php "realtime" (not by saving to server and loading it using img tag)?

If you want to incorporate this into an html page, change test.php to this:

<?php
    echo "Image:<br/>";
    echo '<img src="draw.php" />'
?>

You could just as easily make it a static html page:

<html>
  <head>
   <title>Test</title>
  </head>
  <body>
    Images: <br />
    <img src="draw.php" />
  </body>
</html>

Remove echo "Image:<br/>"; from test.php and read carefully about HTTP headers http://php.net/manual/en/function.header.php so that you don't make the same mistake again