Servers Web Automation: PHP vs. Perl vs. PHP Page 2

Web Automation: PHP vs. Perl vs. PHP Page 2

As I mentioned before, both PHP and Perl (as applied to Web applications) are
interpreted languages. Interpreted languages are not pre-compiled and executed
in a binary format, rather, they are parsed by an interpreter on demand and
compiled on-the-fly. Because of this, both Perl and PHP are very portable. Both
languages can run on any platform that has an
interpreter for the language (with subtle difference here and there).

benefit of being interpreted is that the coders can tweak their application and
immediately see the results and implement the new code, without having to wait
for the application to recompile and relink. On the downside, both PHP and
Perl are “slower” and “more costly” than their C or C++ equivalent. What this
means is that if you wrote a Perl or PHP application in C, it would run
“faster” and use less CPU time. I put “faster” and “slower” in quotes because
on the Web, unlike on your desktop, application “speed” is dependent on more
factors that just the sheer running time of the application.

Syntax and Core Functions

Both PHP and Perl have their roots in UNIX and UNIX-like operating systems
(as well as the C language). For this reason, they both have similar syntax and
core functions, such as the “chown” and “localtime” functions.

Integration with Apache

mod_perl and mod_PHP are both very well designed modules that allow the
interpreter for the language to be embedded into the Apache Web server itself,
speeding up run-time execution and offering a wealth of features above and
beyond the standard CGI execution. For example, installing mod_perl on the
Apache webserver exposes the Apache C API (Application Programming Interface),
which allows you to write Apache server modules in Perl instead of C.

Perl and PHP: Their Differences

Here is where the rifts between these two powerful Open Source communities
start forming. There are just as many differences as similarities, and I’m only
going to touch upon a few of the ones I think are big and important.

Development Focus

Perl is developed as a versatile, powerful language that is easily
(trivially, actually) extensible and can serve billions of purposes. Sure,
there is a large segment of the Perl community that work on projects such as
mod_perl and write Web-savvy modules, such as Lincoln Stein’s module, but
the focus of Perl development, as a language, is not based on the Web or the

PHP is developed for Web automation. PHP developers have added features to
make Web content generation trivial, as well as provide easy access (trivial,
actually) to a wide range of backend databases. Everything about PHP development
screams “give me Web-savvy feature.”

Target Appeal

PHP appeals greatly to Web-content designers who know HTML inside and out,
but want to spice up their site–add a little database interface here, dash a
standard “look and feel” template there. PHP also appeals to the person who want
to abstract HTML design, from application design. If you want multifile
applications that allow you to quickly and painlessly change one file without
affecting (we hope) other pages in the application–PHP is your language du

Perl, as far as Web applications go, apply to the more technically minded
person, programmer, or power fiend. Perl’s infinite extensibility and modular
design make it incredibly popular among web application developers who want a
single program (usually with a horde of included modules), or a couple programs,
to be their application instead of the several hundred HTML pages that the same
application might require if it was done in PHP.

Readily Embeddable

I don’t know if “embeddable” is a word, but you get the point.

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