After spending a ton of time unsuccessfully install Memcache on my local machine, I realized that I don’t even need the memory caching functionality of Memcache, I just need the functions to work.

After some thought, I decided to just implement the class and functions that Memcache provides. Following is what I came up with. It just uses a specified directory to store cache in serialized files on the hard drive. Obviously it doesn’t exactly simulate real production Memcache, but it allows you to work from any box without having to install it.

Here’s what I came up with:

<?php
/*
Fake PHP Memcache class
Use Memcache functions without installing. Useful in development environments.
 
Dan Barnett
http://www.randomtools.net/
*/
class Memcache {
	private $cache_dir = 'C:/path/to/directory/';
 
	public function close() {}
 
	public function connect() {
		return true;
	}
 
	public function pconnect() {
		return $this->connect();
	}
 
	public function getVersion() {
		return -1;
	}
 
	public function get($key) {
		return unserialize(file_get_contents($this->cache_dir . md5($key) . ".txt"));
	}
 
	public function set($key, $value) {
		return file_put_contents($this->cache_dir . md5($key) . ".txt", serialize($value));
	}
 
	public function flush() {
		foreach (glob($this->cache_dir . '*.txt') as $file) {
			unlink($file);
		}
		return true;
	}
}
 
function memcache_close() {}
 
function memcache_connect() {
	global $memcache;
	$memcache = new Memcache();
}
 
function memcache_pconnect() {
	return memcache_connect();
}
 
function memcache_set($key, $value) {
	global $memcache;
	return $memcache->set($key, $value);
}
 
function memcache_get($key) {
	global $memcache;
	return $memcache->get($key);
}
 
function memcache_get_version() {
	global $memcache;
	return $memcache->getVersion();
}
 
function memcache_flush() {
	global $memcache;
	return $memcache->flush();
}
?>

Bookmark this page

Installation is simple:

1. Use yum to install necessary packages.

# yum install php-pear php-devel httpd-devel pcre-devel

2. Use pecl to install the PECL apc package.

# pecl install apc

3. Create a config file that will be included in the PHP ini settings, which will load the APC binary. The default settings should be sufficient for most.

# echo "extension=apc.so" > /etc/php.d/apc.ini

4. Restart Apache:

# service httpd restart

5. Make sure it works by creating a phpinfo.php with the following code and then accessing it in your browser. If it works correctly, there will be a new APC section.

<?php phpinfo(); ?>

Bookmark this page

grep "\t" file.txt

The solution is to use a literal tab character, but it’s not quite so simple. You can’t insert a tab character just by hitting the tab button or by pasting one in. You need to hit Ctrl+V first:

So to type a tab in the putty console:

• Ctrl+V
• [TAB] character

Bookmark this page

I quickly realized it would be a pain to have to constantly hit F5 every time I opened the program, until I realized there was a way to make htop remember your last configuration.

What you want to do is make sure you close out of htop with F10 instead of Ctrl+C, which I normally use. You only need to use F10 when you want to save the settings, and can subsequently close out how you normally do!

Bookmark this page

From the Buddy List window:

1. Tools -> Preferences
2. Conversations
3. Uncheck "Support Digsby development by showing an ad in the IM window"

Bookmark this page

What finally solved it for me was to make sure the user's password is set:

# passwd <user>

If that doesn't work, make sure the user's .ssh directory is chmod 0700 and the user's authorized_keys file is chmod 0600.

Bookmark this page

Also, if you're like me and constantly need to check your IP address and don't want to always search google for "whats is my ip", I'd recommend you bookmark whats my info, a simple, non-bloated site that gives you what just you're looking for.

Bookmark this page

ps aux ww | grep httpd | wc -l

Bookmark this page

1
2
3
4
5

if (jQuery) {
	// jQuery exists, put code here
} else {
	// jQuery not loaded, put code here
}

This is incorrect. It will work fine if jQuery is loaded, but if it's not loaded, javascript will throw an error and the code to execute if jQuery is not loaded will probably not be processed. The modification to fix this is simple:

1
2
3
4
5

if (window.jQuery) {
	// jQuery exists, put code here
} else {
	// jQuery not loaded, put code here
}

Bookmark this page