PHP5 to PHP4

[akia]

I've currently got vbulletin running on my server using php5.

I'm having a few problems with one of my ad ons that I need to use url_fopen which is disabled by my host but if I use php4 its enabled.

Would it do my vbulleting install any harm if I switched back to php4?

[Zachery]

No, but I can't fathom why url_fopen isn't allowed in php5 but it is in php4.

[Floris]

Please note that PHP4 has received EOL (end of life) from php.net and is to be considered 'outdated'.