Install wordpress related questions, please help answer, thank you

Install WordPress problem, please help answer, thank you
Parse error:syntax error, unexpected t_variable in/z4/l/lin1860/public_html/wp-includes/option.php on line 225

After uploading WordPress to the virtual host space, the above error occurs when you run the installation. The same file that was installed yesterday in the other host space can be smooth, but now
This space on the occurrence of the above error, ask is there the problem, space use PHP Version 4.4.9

I checked the option.php. 225 lines of code for $newvalue = Clone $newvalue;
The code should be fine because I installed it only once yesterday. is not PHP version low, or other problems, to help solve, thank you

------Solution--------------------
The Clone keyword only exists in PHP5.

The manual has
Object replication can be done by using the Clone keyword (which, if possible, calls the object's __clone () method). The __clone () method in the object cannot be called directly.
$copy _of_object = Clone $object;
When the object is copied, PHP5 performs a shallow copy of all properties of the object (shallow copy). All reference properties will still be a reference to the original variable.

But this $newvalue = Clone $newvalue; It's too rude.

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