How do I check if array contains at least one empty value?

by

Another solution:

$array = array('one', 'two', '');

if(count(array_filter($array)) == count($array)) {
    echo 'OK';
} else {
    echo 'ERROR';
}

http://codepad.org/zF9KkqKl

Also,

$containsEmpty = in_array("", $arr);

Should be a bit faster as it doesn’t have to trace the entire array and doesn’t have to create a new array.

Note that both solutions will consider 0, false, null and empty array as empty values as well.

In case you also consider a value empty if it consists of space-like characters only, see the answer below

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