How to rotate text while creating PDF in Zend Framework?

I am 开发者_运维知识库placing text on pdf something like this using Zend_Pdf:

$page1->drawText( 'Hello World!', 100, 100 );

But now I want to rotate text to 90 degree on pdf. How is it possible ??

Thanks

How about:
$page->rotate(0, 0, M_PI/12);
$page->drawText('Hello world!', 100, 100);
See also: Zend PDF tutorial

You can use rotate() which uses Radians to determine the amount to rotate.

For example:

    // Rotate at the X and Y coordinates 
    // and 90 Degrees Counter-Clockwise (which is 1.5708 Radians)
    $page->rotate(300, 300, 1.5708);

Use this tool calculate the value from degrees. Whilst you can use the constants in PHP and divide (as the other answer suggests) I would not recommend that personally (as I find it much harder to work out what it equates to).

You do need to rotate back before continuing with the next lines (assuming you want them to be horizontal).