Where can I find detailed information on PHP + ImageMagick?

Question

PHP

Hello
I'm learning PHP on php.net and watching a specialist's course.
I got to php.net to graphics, but ImageMagick is very incomprehensible. PHP.net has a very sparse function reference. Some things are not described at all or very poorly . There is also no description of the sequence of work. For example, to add text to a picture, you first need to create an ImagickDraw object, and there is not a word about it.
php.net/manual/ru/imagick.filter.php generally gives me:

Fatal error: Call to undefined method Imagick::filter()

Although I have openserver with php 5.6 Tell me
, pliz, where can I find more readable and understandable information? And then I got a little tired of the brains. For more than an hour at the beginning I tried to load a picture into the Imagick constructor. It turned out that under Windows it understands only real paths. The description on php.net doesn't say anything about it.
There are no manuals on www.imagemagick.org/script/index.php . In all the PHP books I have on my PC, only GD

Answer 1

There is documentation on ImageMagick itself: www.imagemagick.org/script/command-line-options.php
There are several wrappers www.imagemagick.org/script/api.php#php
There are very simple ones, like this: pastebin.com/PF9j5wWF
Sensible I did not find any documentation anywhere (I was looking for a year ago). IMHO, it's best to look at the documentation for the console ImageMagick, and then look at how these commands are wrapped in the library (and whether they are in this wrapper at all).