Remove NULL values from PHP arrays with 1 line

Posted April 25, 2009 by Brian Cray

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I had an array with something like the following: Array ( [0] => [1] => test [2] => fun ). But I don’t want [0], the empty value in the array.

After searching the web for a good solution, I saw that people were using anywhere from 4 to 10+ lines of code to remove null values from arrays. This is obviously overkill so I decided to tackle the problem myself.

Remove NULL values only

1

$new_array_without_nulls = array_filter($array_with_nulls, 'strlen');

Remove any FALSE values

This includes NULL values, EMPTY arrays, etc. Thanks to Paul Scott for pointing out this method.

1

$new_array_without_nulls = array_filter($array_with_nulls);

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Brian Cray is a Columbus, Ohio-based web entrepreneur & consultant. View some of Brian’s work in his portfolio and learn how to make kick ass websites by reading his blog.

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