How to upgrade PHP on windows?

Hi I need to update my version of PHP. Its running on a windows box. Anyone any experience in doing so?

Security scan shows this

According to its banner, the version of PHP 5.4.x installed on the remote host is a version prior to 5.4.30. It is, therefore, affected by the following vulnerabilities :

- Boundary checking errors exist related to the Fileinfo extension, Composite Document Format (CDF) handling and the functions 'cdf_read_short_sector', 'cdf_check_stream_offset', 'cdf_count_chain', and 'cdf_read_property_info'. (CVE-2014-0207, CVE-2014-3479, CVE-2014-3480, CVE-2014-3487)

- A pascal string size handling error exists related to the Fileinfo extension and the function 'mconvert'.

- A type-confusion error exists related to the Standard PHP Library (SPL) extension and the function 'unserialize'. (CVE-2014-3515)

- An error exists related to configuration scripts and temporary file handling that could allow insecure file usage. (CVE-2014-3981)

- A heap-based buffer overflow error exists related to the function 'dns_get_record' that could allow execution of arbitrary code. (CVE-2014-4049)

- A type-confusion error exists related to the function 'php_print_info' that could allow disclosure of sensitive information. (CVE-2014-4721)

- An error exists related to unserialization and 'SplFileObject' handling that could allow denial of service attacks. (Bug #67072)

- A double free error exists related to the Intl extension and the method 'Locale::parseLocale' having unspecified impact. (Bug #67349)

- A buffer overflow error exists related to the Intl extension and the functions 'locale_get_display_name' and 'uloc_getDisplayName' having unspecified impact.
(Bug #67397)

Note that Nessus has not attempted to exploit these issues, but has instead relied only on the application's self-reported version number.

Upgrade to PHP version 5.4.30 or later.

  Version source    : Server: Apache/2.2.25 (Win32) PHP/5.4.20
  Installed version : 5.4.20
  Fixed version     : 5.4.30
gmanInfrastructure Engineer Asked:
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Dave HoweSoftware and Hardware EngineerCommented:
Download page is

you will probably want 5.4.35 (5.5 or later could mean code changes on your server, staying within 5.4 is therefore the safest route), and should use the thread safe version.

Take a safe copy of the folder containing the php binaries, then replace them with the zipfile from the url above. If you don't already have the VC9 runtimes, you can find them here (and should install those before replacing the php binaries)

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gmanInfrastructure Engineer Author Commented:
Thanks Dave, Do I need to retain any of the original files in the new binary? the ini file for example
Dave BaldwinFixer of ProblemsCommented:
I normally install new PHP versions in a separate directory so I preserve the old version at least long enough to get the new one tested and working.  If both versions are PHP 5.4.xx then you can copy the old 'php.ini' to the new one.  Often with just that change, changing the name of the directories can be enough to have the new version up and running.  You may have to copy any added extensions from the old one to the new one.
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gmanInfrastructure Engineer Author Commented:
This isn't a box I'm 100% familiar with so apologies for the silly question, what would be the easiest way to find these extensions? (assuming any exist)
Dave BaldwinFixer of ProblemsCommented:
PHP extensions always exist and they are included with the Windows binaries.  Except for some third party extensions like the Microsoft SQLSRV driver for SQL Server which you download from the Microsoft web site.  They are normally in the 'ext' subdirectory under the PHP subdirectory.  I always put my PHP in C:\PHP but some others don't.
Dave BaldwinFixer of ProblemsCommented:
One of the main reasons for 'php.ini' is to tell which extensions to enable.  The ones that are enabled are loaded when PHP is launched and the rest are not.
Dave HoweSoftware and Hardware EngineerCommented:
@gman: normally, the zipfile addresses that by not having a php.ini - it has a couple of samples, but doesn't give either of them the "active" name.

@Dave: I usually copy the existing installation and then install over the top, knowing I can restore it back by just copying the copies back to the original location. that saves having to tell everything that already uses php where to find the new copy.  Another alternative is to use a versioning system (such as tortoisegit) to version the directory - that lets you keep track of updates (not just this one, but any changes to the php ini, new modules etc) and gives you finer control over the content.
Dave BaldwinFixer of ProblemsCommented:
What I do is essentially the same except I'm changing only directory names.  I usually copy the 'php.ini' file from the previous version to the new one.  When I'm done the 'new' one has the directory name of the old one and none of my other programs knows the difference.
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