Comments on: Remove NULL values from PHP arrays with 1 line

By: Josh

Josh — Fri, 11 Feb 2011 09:18:03 +0000

$new_array_without_nulls = array_filter($array_with_nulls);

This does also strip empty arrays within the array… not what *I* understand should be treated as NULL…

rvdavid — Sat, 05 Feb 2011 20:35:41 +0000

You should update your example to use is_scalar() as the callback function rather than strlen().

Using an strlen callback will filter out empty string values still and not just _NULL_ values only as currently advertised.

Calvin Froedge — Wed, 02 Feb 2011 12:52:23 +0000

Aha! Kudos!

Arnaldo — Sun, 14 Nov 2010 18:15:58 +0000

thanks so much,
Arnaldo Guido

Buzzknow — Sun, 19 Sep 2010 17:29:58 +0000

nice 1 line code !!

thanks dude

Remove NULL values from PHP arrays with 1 line « PHP Code Search — Wed, 01 Sep 2010 09:29:28 +0000

[...] Thanks to http://briancray.com/2009/04/25/remove-null-values-php-arrays/ [...]

NXie — Thu, 24 Jun 2010 02:10:17 +0000

Nice job. Exactly what I was looking for.

Impossibly simple image randomizer with jQuery — Mon, 04 Jan 2010 04:05:44 +0000

[...] or advertisment on each new pageview. I’m always looking for ways to simplify code [see 1, 2, 3], and naturally, I tried to do it [...]

David — Mon, 27 Jul 2009 08:38:28 +0000

is_scalar will work for Cometbus’ sample array.

Brian Cray — Mon, 27 Apr 2009 18:26:03 +0000

Cometbus:

You’re right about that. I added my original code for this tutorial, which removes ONLY NULL values.