How to increase size of the text in imagestring() PHP without using imagettftext() in PHP

See more:

PHP

HTML5

I have searched many questions on internet that show how to increase the size of text in imagestring(). They suggest to use imagettftext() but actually this doesn't work for me. Is there any way that I can increase the text size in imagestring() itself. And if that is not possible help me solve the black screen error I am getting.

Here is the PHP code:

header('content-type:image/jpeg');
$image = imagecreatefromjpeg("sample.jpg");
$color = imagecolorallocate($image, 225, 0, 0);

imagestring($image, 40, 100, 1000, 'sample', $color);

imagejpeg($image);

imagedestroy($image);

Thanks in advance...

What I have tried:

I have tried following a lot of tutorials but nothing works for me. You might view this whole code here
web - How to increase size of the text in imagestring() php without using imagettftext() in PHP - Stack Overflow[^]