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Installing Apache, MySQL, and PHP
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Activating PHP on Mac OS X


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Installing Apache, MySQL, and PHP

with David Gassner

Video: Activating PHP on Mac OS X

Mac OS X includes PHP, along with the Apache HTTP server. Version 10.5 of the operating system, Leopard, includes PHP 5.2, while versions 10.6, Snow Leopard, and 10.7, Lion, both include PHP 5.3. PHP isn't enabled by default, though. You have to activate it. I'll show you how to do that. First, go to your Web Sharing dialog and for the moment, turn Web Sharing off. Then you'll go to Terminal and open a command window.
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  1. 17m 35s
    1. Welcome UPDATED
      1m 9s
    2. Understanding Apache, MySQL, and PHP
      7m 12s
    3. Using the exercise files
      1m 7s
    4. What's new in this update UPDATED
      3m 35s
    5. Choosing a software stack
      4m 32s
  2. 30m 18s
    1. Installing Apache HTTP Server 2.4 on Windows
      6m 51s
    2. Installing PHP 5.5 on Windows
      4m 12s
    3. Starting Apache from the command line
      5m 24s
    4. Installing MySQL on Windows UPDATED
      7m 24s
    5. Installing phpMyAdmin on Windows
      6m 27s
  3. 44m 5s
    1. Activating Apache on Leopard and Snow Leopard
      3m 35s
    2. Activating Apache on Lion
      5m 9s
    3. Activating Apache on Mountain Lion and Mavericks
      4m 57s
    4. Configuring personal site folders on Mountain Lion and Mavericks UPDATED
      6m 59s
    5. Activating PHP on Mac OS X
      6m 12s
    6. Installing MySQL on Mac OS X
      3m 59s
    7. Setting the root user password
      2m 28s
    8. Installing phpMyAdmin on Mac OS X
      6m 16s
    9. Uninstalling MySQL on Mac OS X
      4m 30s
  4. 14m 35s
    1. Installing WampServer
      6m 25s
    2. Managing WampServer
      2m 2s
    3. Defining directory aliases through WampServer
      2m 55s
    4. Changing software versions with WampServer add-ons
      3m 13s
  5. 10m 58s
    1. Installing MAMP UPDATED
      4m 6s
    2. Configuring Apache and MySQL server ports UPDATED
      1m 57s
    3. Managing MAMP UPDATED
      4m 55s
  6. 29m 3s
    1. Installing XAMPP for Windows UPDATED
      10m 0s
    2. Managing XAMPP for Windows
      4m 4s
    3. Managing MySQL security through XAMPP for Windows
      2m 40s
    4. Installing XAMPP for Mac OS X UPDATED
      6m 14s
    5. Managing XAMPP for Mac OS X
      2m 27s
    6. Managing MySQL security through XAMPP
      3m 38s
  7. 13m 20s
    1. Installing BitNami for Windows
      6m 31s
    2. Installing BitNami for Mac OS X UPDATED
      6m 49s
  8. 18m 49s
    1. Handling port conflicts with Skype on Windows
      2m 37s
    2. Handling other port conflicts on Windows
      5m 19s
    3. Detecting and handling port conflicts on Mac OS X
      6m 26s
    4. Configuring Apache to work with IPv6 on Windows 8
      4m 27s
  9. 31s
    1. Goodbye
      31s

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Installing Apache, MySQL, and PHP
2h 59m Intermediate Jan 21, 2011 Updated Mar 28, 2014

Viewers: in countries Watching now:

Installing Apache, MySQL, and PHP with David Gassner describes how to install and configure Apache HTTP server, MySQL database server, and PHP, known as the AMP stack, on a local development computer. Chapters are devoted to multiple installation approaches: installing the components separately on both Windows and Mac (including coverage of Apache and PHP on Mac OS X 10.7 Lion and 10.8 Mountain Lion), installing the pre-packaged Apache and MySQL distributions in WampServer on Windows and MAMP on Mac, and installing the cross-platform XAMPP and Bitnami on both Mac and Windows. Exercise files are included with the course.

This course was updated on 07/06/2012.

Topics include:
  • Performing Apache, PHP, and MySQL as separate installs
  • Activating Apache and PHP on Leopard, Snow Leopard, and Lion
  • Setting the MySQL root user password
  • Installing WampServer
  • Changing software versions with WampServer add-ons
  • Installing MAMP
  • Configuring MAMP's Apache and MySQL server ports
  • Installing XAMPP for Windows and Mac
  • Managing MySQL security through XAMPP
  • Installing Bitnami for Windows and Mac
  • Detecting and handling port conflicts
  • Working with Apache and IPV6 in Windows 8
Subjects:
Developer Web Servers Databases
Software:
MySQL PHP HTTP Server Apache HTTP Server
Author:
David Gassner

Activating PHP on Mac OS X

Mac OS X includes PHP, along with the Apache HTTP server. Version 10.5 of the operating system, Leopard, includes PHP 5.2, while versions 10.6, Snow Leopard, and 10.7, Lion, both include PHP 5.3. PHP isn't enabled by default, though. You have to activate it. I'll show you how to do that. First, go to your Web Sharing dialog and for the moment, turn Web Sharing off. Then you'll go to Terminal and open a command window.

If you've never used Terminal before, you can find it easily by going to Spotlight in the upper-right corner, typing "terminal," and pressing Return. Now to make it easy to get to Terminal in the future, go to your Dock, right-click on Terminal and choose Options > Keep in Dock. Now, you're going to edit the HTTP configuration file. I'm going to use an editor that's included with Mac OS X called pico, or P-I-C-O. I'll start with the command "sudo." That stands for superuser do and allows me to do anything I want on this computer.

Then I'll type pico the name of the editor and then the location and name of the HTTP configuration file, /etc/apache2/httpd.conf. Make sure you type this in all lowercase. Press Return. If you're prompted for your administrative password, type it in and press Return, and that will open the HTTP configuration file in pico.

Now locate the line of code that activates PHP. Pico is completely a keyboard-oriented editor; you won't be able to use the mouse. You'll see keyboard shortcuts listed at the bottom. Press Ctrl+W for where is, or find, type "php," and press Return. This should take you to a LoadModule command that references PHP 5. Notice there's a hash mark, or pound sign, at the beginning of the line. That's a comment, and it's deactivating PHP right now.

Using your arrow keys, move over to the left and then backspace over the pound sign, and now PHP is activated. Exit and save the file. Press Ctrl+X, Y for yes, and Return. And now you've made the required change to the configuration file. The next step is to create a PHP initialization file. This goes into a folder called /private/etc, and this file needs to be named php.ini.

It doesn't already exist on your system, but there is a beginning file there that you can copy. Type the following command to change to the right directory: cd /private/etc. And then list all files that start with the letters php. Type "ls php*" and press Return. You should see a file named php.ini.default. You might see other files there, depending on how your computer was configured, but the default file is the only one you need.

Now you'll copy that and create the new file named php.ini. Type "sudo cp" for copy, and type the name of the existing file, "php.ini.default" and then after a space, the name of the file you want to create "php.ini" and press Return. Once again list the php files with ls php* and you should see the new file is there. Now, that's all you have to do, but if you want to make any changes to the ini file, you can again use the pico editor or any text editor that you prefer.

I'll type "sudo pico ./php.ini." Now I'm going to make one change that I always make to my PHP configuration when I'm doing local development. If I encounter a PHP error, I want the error to print in the HTML that's returned to the browser. This capability is turned off by default. To find it, press Ctrl+W and type "display_errors" and press Return.

The first time you search you'll get to some documentation. Press Ctrl+W and Return again and now you get to the actual configuration. Change the value of display_errors from Off to On. Once again, exit and save. Press Ctrl+X, Y for yes, and Return. Now, you'll turn Apache back on again. Go back to your Sharing dialog and check Web Sharing and Apache should start correctly. Now to test PHP, I've provided a file in the Free Exercise Files that you can copy to your web root.

Go to the Free Exercise Files and copy the file phpinfo.ini to the clipboard. Then navigate to your root folder. That's under the Macintosh root folder, Library/WebServer/Documents, and paste the file into that location. To test this, go to any browser and then type in the following URL, "http://localhost/phpinfo.php." If everything is working correctly, you should see this generated HTML page, which tells you which version of PHP you're using and, as you scroll down, all sorts of other important information about your PHP environment.

One of the most important bits of information you should see is the name and location of your loaded configuration file, which is /private/etc/php.ini when you're using the versions of Apache and PHP that are included with Mac OS X.

Find answers to the most frequently asked questions about Installing Apache, MySQL, and PHP.


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Q: I followed the procedure in the "Installing XAMP for Windows" video, but 1) I got no text file popup after install, and 2) the Admin button does not bring up phpMyAdmin page. Nothing happens even though the Running button is green.

A: The text window not popping up after the installation is just a difference in the installation flow; it shouldn't cause any functional problems.

The issue around phpMyAdmin not opening correctly from the Xampp Control Panel has come up before. There is a bug in the newest version of Xampp for Windows (version 1.7.4) that affects the Control Panel. After starting the Control Panel, and then starting both Apache and MySQL, clicking the MySQL Admin button doesn't open the browser to the phpMyAdmin as expected. However, both MySQL and phpMyAdmin are working correctly.

Follow these steps instead:
  1. Click the Admin button next to Apache to open the Xampp home page in the browser.
  2. Click phpMyAdmin under the Tools section of the menu on the left side of the page.
phpMyAdmin should open correctly. From that point, you should be able to manage your database.
Q: I'm using TextWrangler on the Mac to uncomment the following line in the httpd.conf file, as shown in the video "Activating PHP with the included Apache server" in Chapter 2:

LoadModule php5_module libexec/apache2/libphp5.so

When I try to save the changes, I get the message "Error code: -5000". What's going wrong?
A: This is a common issue with the latest version of TextWrangler. Here's another way of editing the file with a command line editor named Pico that's included in Mac OS X. Remember, most text editors don't give you the ability to edit files as the "root user", and you need those rights to edit the httpd.conf file.

Unlike TextWrangler, Pico doesn't accept mouse input, so you have to do everything with the keyboard:
  1. Open Terminal from /Applications/Utilities/Terminal.
  2. Type sudo pico /private/etc/apache2/httpd.conf.
  3. Type your password and press Return.
  4. Press Ctrl+W for 'Where is'.
  5. Type 'php' and press Return. You should find the commented-out line with php5_module
  6. Delete the '#' at the beginning of the line.
  7. Press Ctrl+X for 'Exit'.
  8. Press Y for 'Yes'.
  9. Press Return to save and exit
We recommend also using Pico to edit the php.ini file.
Q: After downloading XAMPP I was unable to start Apache from the control panel. MySQL started fine. When I click the Start button next to Apache it looks like it starts and then stops. Here is the output:

Busy
Apache Started (Port 80)

The MySQL button says "running" with a stop button; the Apache button still? says start no matter how many time I click it.
A: This usually means that another program is using Port 80 (the port that Apache needs). Port 80 is used for any web server, so you either have another web server running or you're running something else (usually Skype) that is using Port 80.

If you're running Skype (and this is really common), you need to configure it to use a different port. If it's not Skype, it may be that you're running another web server or IIS (Microsoft Internet Information Server, the web server that comes with Windows), which you'll need to quit.
Q: This course was updated on 07/06/2012. What changed?
A: A few of the WampServer movies were updated to reflect the new user interface. We also added movies on installing Bitnami, an open source stack solution, and troubleshooting Apache to work with IPV6 on Windows 8.
Q: This course was updated on 01/09/2012. What changed?
A: Two new movies were added to Chapter 2, "Installing Separate Components on Mac OS X," to reflect the changes in the latest version of Mac OS X, Mountain Lion (version 10.8). These movies cover activating Apache and configuring personal site folders in Mountain Lion.
Q: This course was updated on 8/23/2013. What changed?
A: We added new software download locations and coverage of Apache HTTP Server 2.4 on Windows, as well as information on managing Apache from the command prompt, editing hidden config files with the nano editor, and installing the new version of Bitnami on Windows and Mac OS X.
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