Converting a String to an Integer returns 2147483647

Question

Plenty of others seem to have had this problem, but usually associated with an MySQL datatype.

I'm trying to convert a String to an Integer like this:

$adGroupId  = '5947939396';
$adGroupId  = intval($adGroupId)

However the Integer returned is 2147483647, irrespective of the string input.

Answer 1

That number is too big to fit in an integer data type (the max integer value is 2147483647 as seen above). Converting it to a float instead will work:

$adGroupId  = '5947939396';
$adGroupId  = floatval($adGroupId)

Answer 2

It's happening because 2147483647 is the maximum integer value. You can use floatval

$adGroupId  = '5947939396';
$adGroupId  = floatval($adGroupId);
echo $adGroupId;

Answer 3

Just typecast it to a float

$adGroupId = (float)$adGroupId;

Reference between the accepted answer and this one differences: Typecasting vs function to convert variable type in PHP