Verify the image watermark.

For more information, see <;? Php * $ imageimagecreatetruecolor (); imagecolorallocate (); imageString (); * for ($ i0; $ I & lt; 4; $ I ++) {$ rand. dechex (rand ();} $ imageimagecreatetrueco verifies the image watermark for help
/* $ Image = imagecreatetruecolor (100,30 );
Imagecolorallocate ();
ImageString ();*/
For ($ I = 0; $ I <4; $ I ++ ){
$ Rand. = dechex (rand (1, 15 ));
}
$ Image = imagecreatetruecolor (); // create an image

$ Bgallocate = imagecolorallocate ($ image, 0); // The background color of the image.
$ Color = imagecolorallocate ($ image, 255,255,255); // color

Imagestring ($ image, 5, 0, 0, $ rand, $ color );

Header ("Content-type: image/jpeg ");
Imagejpeg ($ image );
?>

Why are images uploaded?
; The Semicolon before extension = php_gd2.dll has been removed

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The code is correct!
Check whether the BOM header exists.
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Discussion
The code is correct!
Check whether the BOM header exists.

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Use the editor to change to UTF-8 without BOM encoding format and save it. Check the error message.