PHP Supports Multi Level Inheritance
Yes php 4.4.7 server support php 5 files. But most of the php 5 features are not supported by php 4.4.7 version
PHP 6 hasn't been released yet.
Yes. See the references.
Image creating and manipulating in PHP can be done with multiple libraries, some officially supported by PHP and some made by third parties. A common library, especially for developers new to image libraries, is the GD package. You must include the library you wish to use upon installation of PHP (if it is officially supported), or manually include the library into your scripts.
<?php $x =1; ?> PHP changes type for you on the fly. If you need to be sure it's an integer (Because PHP isn't doing a good job changing the type) then cast it thusly: <?php $y = (int)$x ?>
If you will read typecasting on php, you will know more on this. <?php $str = "10"; $num = (int)$str; ?>
polygenic inheritance
type this in a file save it as something.php and then run it <?php echo '*'; ?>
One will put PHP encoding type headers before instructions using HTML language. This is done in order to start the HTML sequence through the PHP header.
multiple allels
You can get information relating to PHP files online at websites such as Blue Host Forum and PHP. You can also find more information relating to the PHP file type at its associated Wikipedia page.
PHP content management refers to the management of the content of websites. There are various styles of coding that can be used but PHP is one of the most common.