Fix highlighter consistency

- in some places php would not be highlighted as the `<?php` tag was missing
- in one place there was a duplicate `<?php` tage
- replaced `bash` with `console` for better highlighting
- ensured all console snippets are wrapped within highlighting code
- wrapped ini examples in highlighting code

_posts/04-03-01-PEAR.md

@@ -27,8 +27,10 @@ have an apt ``php-pear`` package.
 
 If the package is listed on the [PEAR packages list][3], you can install it by specifying the official name:
 
+{% highlight console %}
     pear install foo
-    
+{% endhighlight %}
+
 If the package is hosted on another channel, you need to `discover` the channel first and also specify it when 
 installing. See the [Using channel docs][4] for more information on this topic.
 
@@ -71,6 +73,7 @@ available through the Composer autoloader:
 To use this PEAR package simply reference it like so:
 
 {% highlight php %}
+<?php
 $request = new pear2\HTTP\Request();
 {% endhighlight %}