Home > Mac OSX > Enabling PHP and Apache in Leopard

Enabling PHP and Apache in Leopard

Mac OS X 10.5 (Leopard) comes with both Apache 2.2.6 and PHP 5.2.4 preinstalled, but they’re not enabled by default. The following instructions should help you get up and running.

  1. Open BBEdit or TextWrangler (a free, cut-down version of BBEdit available from www.barebones.com). From the File menu, select Open Hidden. In the Open dialog box, select All Files from the Enable drop-down menu. Then navigate to Macintosh HD:private:etc:apache2:httpd.conf, and click Open.
  2. This opens the main configuration file for Apache 2.2.6. It’s a system file, so you need to unlock it by clicking the icon of a pencil with a line through it at the top-left of the toolbar, as shown in the following screenshot:
    Apache configuration file in TextWrangler
  3. You will be told that the document is owned by “root”, and be asked to confirm that you want to unlock it. Click Unlock. This removes the line through the pencil, and readies the file for editing. Normally, when editing system files, it’s a good idea to make a backup. However, it’s not necessary in this case, because backup copies of all the Apache configuration files are in the original subfolder of the Apache2 folder.
  4. Scroll down until you find the code shown on line 114 in the following screenshot (although the line number is likely to be the same in your version, it’s the code that’s important, not which line it’s on):
    Load PHP module command
  5. Position your cursor at the beginning of that line, and remove the hash or pound sign (#). It should now look like this:
    LoadModule php5_module      libexec/apache2/libphp5.so
    This enables PHP 5 on your computer.
  6. Save the file. Because it’s owned by “root”, you will be prompted to enter your Mac password. That takes care of the basic configuration. In theory, you could now start Apache and PHP would be up and running. However, the default installation doesn’t use the PHP configuration file php.ini. You need to need to make a copy of a file called php.ini.default, and edit it.
  7. Unfortunately, you can’t open php.ini.default in BBEdit or TextWrangler and save it with a different name. You need to go under the hood of OS X by opening Terminal in the Applications:Utilities folder. Similar to the Command Prompt in Windows, Terminal gives you direct access to the underlying operating system on a Mac.
  8. With Terminal open, type the following series of commands, each followed by Return:
    cd /private/etc
    sudo cp php.ini.default php.ini

    This moves you into the private:etc folder, and then copies php.ini.default to php.ini in the same folder, using the sudo command. You need to use sudo because it’s a system file. Enter your Mac administrator password when prompted. Terminal should now look something like this:
    Copying php.ini.default in Terminal
  9. Open php.ini in BBEdit or TextWrangler using Open Hidden in the same way as with http.conf. You should find php.ini in Macintosh HD:private:etc. Click the icon of a pencil with a line through it to enable editing.
  10. How you edit php.ini is mainly a question of preference, but the most important change is to a command called error_reporting. The default setting (it should be on line 305) looks like this:
    error_reporting = E_ALL & ~E_NOTICE
    Change it to this:
    error_reporting = E_ALL
    This ensures that PHP reports all errors. Although no one likes error messages, it’s vital to eliminate any errors (even seemingly minor ones) before deploying scripts on a live web server.
    NOTE: There are several lines that look similar. Make sure that you edit the line that does NOT begin with a semicolon. A semicolon at the beginning of a line in php.ini indicates a comment, which is ignored by the server.
  11. Save php.ini.
  12. You can now start Apache by going to System Preferences. Click Sharing in Internet & Network. Then place a checkmark in Web Sharing. When Apache starts up, System Preferences should display Web Sharing: On.
  13. Click the link under Your computer’s website. This should launch Safari and display an Apache web page.
  14. Create a page called test.php, and type in the following code:
    <?php phpinfo(); ?>
    Save it in Macintosh HD:Library:WebServer:Documents.
  15. Load the following URL into your browser:
    If you see the PHP configuration screen, you’re up and running!

NOTE: If you did an upgrade install of Leopard, you cannot view pages stored in your personal Sites folder, because the necessary file(s) won’t have been copied to the correct folder for Apache 2. To copy the file(s), open Terminal and type the following commands, both followed by Return:
cd /private/etc/httpd/users

You should see at least one file that uses your Mac username followed by .conf. For example, on my computer, it’s called davidpowers.conf. You need to copy this file for each user to a folder where Apache 2 can find it. Type the following command, using the name of the file on your computer instead of davidpowers.conf:
sudo cp davidpowers.conf /private/etc/Apache2/users

If there are several .conf files to copy, you can use the following command instead:
sudo cp *.conf /private/etc/Apache2/users

However, if you have previously installed the Mac PHP package from Marc Liyanage, do not copy entropy-php.conf.

For this (or any other) change to take effect, go to Sharing in System Preferences, deselect Web Sharing, and then reselect it. This restarts Apache and implements any changes made to the Apache or PHP configuration.

My thanks to Dan Brown for the additional information he provided for these instructions.

Categories: Mac OSX Tags:
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