Compiling PHP Scripts
From Phpmaniac
Contents |
What is Compiling
Compiling is the process of turning your source code into bytecode which has several benefits, including up to a 30% speed gain as your code will not have to be compiled at run-time and also your source code will be protected.
bcompiler is an open source PHP compiler which has the added benefit of it's compiled scripts being able to run on servers that do not have bcompiler installed.
It is important to remember that even though the original source is not recoverable from the compiled script, data can still be recovered from the compiled script, so it is imperative that passwords that should be secret are not placed in compiled scripts.
Installation
Installation can be done either through your operating systems package manager, or through PECL (PHP Extension Community Library).
Pecl Install
Compile and install the binary in one step using the following command.
pecl install channel://pecl.php.net/bcompiler-0.8
Add the following line to your php.ini
extension=bcompiler.so
Linux
Use the PECL install detailed above
Windows
Download the windows binary http://pecl4win.php.net/ext.php/php_bcompiler.dll for you version of PHP and place it in your extensions directory,
Add the following line to your php.ini
extension=php_bcompiler.dll
FreeBSD
Using packages
Install the binary in one step using the following command.
# pkg_add -r pecl-bcompiler
Add the following line to your php.ini (usually /usr/local/etc/php.ini)
extension=bcompiler.so
Using Ports
Compile and install the binary in one step using the following commands.
cd /usr/ports/devel/pecl-bcompiler make install clean
Compiling your first script
This script takes the source a source PHP script called in.php, and outputs a compiled PHP script called out.php
- <?php
- $fp = fopen("out.php", "w"); // Create the destination PHP file (in this case called out.php)
- bcompiler_write_header($fp); // Write a bcompiler header in the destination file
- bcompiler_write_file($fp,"in.php"); // Compile the contents of the source file and place in destination file
- bcompiler_write_footer($fp); // Write the bcompiler footer in the destination file
- fclose($fp); // Close the destination file
- ?>
in.php
The contents of in.php
- <?php
- print("Hello Wrold!");
- ?>
out.php
The contents of out.php
^P^@^@^@bcompiler v0.14s ^B^@^@^@^@\xff\xff\xff\xff^A^@^@^@^C^@^@^@^C^@^@^@(^H^@^@^@^@^@^@^@^@^@^@^@^A^@^@^@^F^L^@^@^@Hello World!^L^@^@^@^A^B^@^H^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^B^@^@^@>^H^@^@^@^@^@^@^@^ @^@^@^@^A^@^@^@^A^A^@^@^@^A^B^@^H^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^D^@^@^@\x95^H^@^@^@^@^@^@^@^@^@^@^@^H^@^@^@^@^@^@^@^@^@^@^@^H^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^D^@^@^@^@^@^@^@^@^@^@^@\xff\xff\xff\xff^@^@^@^A?^@^@^ @bcompiler/in.php\xff\xff\xff\xff^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@
Troubleshooting
No Stable version of bcompiler
# pecl install bcompiler Failed to download pecl/bcompiler within preferred state "stable", latest release is version 0.8, stability "beta", use "channel://pecl.php.net/bcompiler-0.8" to install Cannot initialize 'channel://pecl.php.net/bcompiler', invalid or missing package file Package "channel://pecl.php.net/bcompiler" is not valid install failed
If you get this message it's because you have selected to run stable PECL packages, as this extension is still experimental, you will need to run the following command to install a beta version
# pecl install channel://pecl.php.net/bcompiler-0.8
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