how do I check against the PHP version?

[lawrence]

I'm writing an installation script for my PHP content management
system. I've written the code to be compatible with PHP 4.06 or later.
I need to get the PHP version and throw an error message if the
version is less than 4.0.6. I realize that phpinfo outputs the info,
but what function would get me the version string?

[Chris Hope]

lawrence wrote:

I'm writing an installation script for my PHP content management
system. I've written the code to be compatible with PHP 4.06 or later.
I need to get the PHP version and throw an error message if the
version is less than 4.0.6. I realize that phpinfo outputs the info,
but what function would get me the version string?

There's a function called phpversion() and a constant called PHP_VERSION

Refer to http://www.php.net/php_version for more information

--
Chris Hope - The Electric Toolbox - http://www.electrictoolbox.com/

[Kevin Lin]

Also see "version_compare" which lets you test if a version is equal to or
greater.

- Kevin

"lawrence" <lk******@geocities.com> wrote in message
news:da**************************@posting.google.c om...

I'm writing an installation script for my PHP content management
system. I've written the code to be compatible with PHP 4.06 or later.
I need to get the PHP version and throw an error message if the
version is less than 4.0.6. I realize that phpinfo outputs the info,
but what function would get me the version string?

[Alan Little]

Carved in mystic runes upon the very living rock, the last words of
Kevin Lin of comp.lang.php make plain:

"lawrence" <lk******@geocities.com> wrote in message
news:da**************************@posting.google.c om...

I'm writing an installation script for my PHP content management
system. I've written the code to be compatible with PHP 4.06 or
later. I need to get the PHP version and throw an error message if
the version is less than 4.0.6. I realize that phpinfo outputs the
info, but what function would get me the version string?

Also see "version_compare" which lets you test if a version is equal
to or greater.

Of course, that's only good if the installation is 4.1.0 or greater :)
There is a version check function in HoloLib:

ftp://ftp.holotech.net/hololib.zip

--
Alan Little
Phorm PHP Form Processor
http://www.phorm.com/