Setting All Values in an Array to Blank

Posted on 2011-04-25
Medium Priority
Last Modified: 2012-08-13
Is there an easy and simply way to set all values in an array to blank?
Question by:deharvy
  • 4
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LVL 111

Expert Comment

by:Ray Paseur
ID: 35459404
Uhh, sure - use foreach and set them to a blank.
LVL 111

Expert Comment

by:Ray Paseur
ID: 35459406
What do you mean by blank?  Unset, NULL, a single character space?   Give us a little more to go on and we might be able to get you a better answer.

Author Comment

ID: 35459452
I definitely do not want to unset, so setting to null is more of what I want.

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LVL 111

Accepted Solution

Ray Paseur earned 1200 total points
ID: 35459464
OK, the code construct would look something like this:

foreach($array as $key => $value)
    $array[$key] = NULL;

Assisted Solution

vogen earned 800 total points
ID: 35459591
Using array merge


$a = array("a" =>"Dog","b"=>"Cat","c"=>"Horse");

$myarray = array_merge(array_diff($a, $a));

LVL 111

Expert Comment

by:Ray Paseur
ID: 35459676
There are some other interesting things you can do with arrays.  PHP has lots of functions, and all of them are documented on the PHP.net web site, with examples and user-contributed notes.   Have a look at the functions listed in the left sidebar here:

Author Closing Comment

ID: 35459947
Thanks for your help!

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