John's blog

Talking about technology (mostly)

Talking about the new www.personalserver.com features…

Today I learned about the fnmatch function in PHP. It supports wildcard matching. Handy!

To get the element/tag name with jQuery:

 $( '.selector' ).get( 0 ).tagName

In vim to undo is ‘u’ and to redo (i.e. undo undo) is ‘Ctrl+R’…

Found this which said:

$('<div/>').text('This is fun & stuff').html();

My CSS height value wasn’t being applied. Found this. The problem was that I needed to specify heights for all of the ancestor elements. Bug fixed!

Today I had an interesting problem.

When I ran:

 # php test.php | less

The ‘less’ program entered input mode and the up and down arrow (and j, k keys) weren’t working.

Eventually I figured out a solution:

 # php test.php < /dev/null | less

The PHP CLI seems to be interfering with the terminal and piping in /dev/null to PHP CLI stdin fixes the problem!

Today I read this article and found this technique for calculating a median value:

SELECT x.val from data x, data y
GROUP BY x.val
HAVING SUM(SIGN(1-SIGN(y.val-x.val)))/COUNT(*) > .5
LIMIT 1

Today I read What is the Meta Refresh Tag? about the HTML Meta Refresh facility, basically:

<meta http-equiv="refresh" content="0;url=https://www.jj5.net/">