After array_filter(), how can I reset the keys to go in numerical order starting at 0

php arrays filter reindex
jel402 picture jel402 · Aug 4, 2010 · Viewed 49.5k times · Source

I just used array_filter to remove entries that had only the value '' from an array, and now I want to apply certain transformations on it depending on the placeholder starting from 0, but unfortunately it still retains the original index. I looked for a while and couldn't see anything, perhaps I just missed the obvious, but my question is...

How can I easily reset the indexes of the array to begin at 0 and go in order in the NEW array, rather than have it retain old indexes?

Answer

Daniel Vandersluis picture Daniel Vandersluis · Aug 4, 2010

If you call array_values on your array, it will be reindexed from zero.

Related questions

How to filter an array by a condition

I have an array like this: array("a" => 2, "b" => 4, "c" => 2, "d" => 5, "e" => 6, "f" => 2) Now I want to filter that array by some condition and only keep the elements where the value is equal to 2 …

Read More
Deleting an element from an array in PHP

Is there an easy way to delete an element from an array using PHP, such that foreach ($array) no longer includes that element? I thought that setting it to null would do it, but apparently it does not work.

Read More
"Notice: Undefined variable", "Notice: Undefined index", and "Notice: Undefined offset" using PHP

I'm running a PHP script and continue to receive errors like: Notice: Undefined variable: my_variable_name in C:\wamp\www\mypath\index.php on line 10 Notice: Undefined index: my_index C:\wamp\www\mypath\index.php on line 11 Line 10 …

Read More