Changelog

The following changes have been made to classes/functions/methods of this extension.

Version	Function	Description
5.5.0	pack	The "Z" code was added with equivalent functionality to "a" for Perl compatibility.
	unpack	Changes were made to bring this function into line with Perl: The "a" code now retains trailing NULL bytes. The "A" code now strips all trailing ASCII whitespace (spaces, tabs, newlines, carriage returns, and NULL bytes). The "Z" code was added for NULL-padded strings, and removes trailing NULL bytes.
5.3.4	sleep	Before PHP 5.3.4, on Windows, sleep always returns NULL when sleep has occurred, regardless of whether the sleep was interrupted or not.
5.3.0	time_nanosleep	This function is now available on Windows platforms.
	time_sleep_until	This function is now available on Windows platforms.
5.0.5	php_check_syntax	This function was removed from PHP.
5.0.3	php_check_syntax	Calling exit after php_check_syntax resulted in a Segfault.
5.0.1	php_check_syntax	error_message is passed by reference.
5.0.0	uniqid	The prefix parameter was made optional.
	usleep	This function now works on Windows systems.
4.3.2	get_browser	The optional parameter return_array was added.
4.3.1	uniqid	The limit of 114 characters long for prefix was raised.
4.2.1	highlight_file	This function is now also affected by safe_mode and open_basedir.
4.2.0	highlight_file	The return parameter was added.
	highlight_string	The return parameter was added.