I\'d go along with installing the PHP binary in your section of the site (assuming it\'s a hosted server -- which is a fair assumption, otherwise you would have just installed PHP..)
That said, I\'ve just done the other (Perl -> PHP). In general the languages are real close. If you use templating, the conversion will be much easier. You won\'t be able to \"auto\" convert, but with a good text editor (BBedit is what I use), I was able to convert whole chunks of Perl to PHP with way less effort than it took to do the original programming. (most of the hard work of programming is getting the logic and schematics down -- that won\'t need to change much when you move to Perl or vice-versa.)
After using search and replace to convert the various easy to fix pieces, I then kludged through it and replaced the pieces that need manual conversion. i.e the regular expression, and quoted strings. (PHP sorely lacks Perls \"qq\" comand.)
If you mixed your HTML and code, then you\'re fucked. It will take way longer. (always use Templating... I learned that one a long time ago.. It amazes me that PHP manuals teach PHP by embedding it in the HTML. This is a really, really bad practice.) On the plus side, both PHP and Perl support a version of \"FastTemplate\" and only require minor changes in the templates to be compatible with each other.
