i have an array like this Array ([0]=>'some values'[1]=>'')
I want to change the empty elemnt of an array to a value of 5
how can I do that
thanks
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Which of those PHP versions are you using?Matthew Flaschen– Matthew Flaschen2010-06-11 22:11:07 +00:00Commented Jun 11, 2010 at 22:11
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4 Answers
5.3 version
$arr = array_map(function($n) { return !empty($n) ? $n : 5; }, $arr);
Comments
If you know at which position it is, just do:
$array[1] = 5;
If not, loop through it and check with === for value and type equality:
foreach($array as &$element) { //get element as a reference so we can change it
if($element === '') { // check for value AND type
$element = 5;
}
}
Comments
You can use array_map for this:
function emptyToFive($value) {
return empty($value) ? 5 : $value;
}
$arr = array_map(emptyToFive, $arr);
As of PHP 5.3, you can do:
$func = function($value) {
return empty($value) ? 5 : $value;
};
$arr = array_map($func, $arr);
EDIT: If empty does not fit your requirements, you should perhaps change the condition to $value === '' as per @Felix's suggestion.
2 Comments
Felix Kling
I'd say,
empty is not the right function here. It will also return true, for 0, '0' and FALSE which are very likely not empty values in this case.
karim79
You might be right, I'd say it really depends on the OP's exact requirements. I've edited that in.
This $array[1] = 5;
