Trim any zeros at the beginning of a string using PHP

Question

Users will be filling a field in with numbers relating to their account. Unfortunately, some users will have zeroes prefixed to the beginning of the number to make up a six dig

Answer 1

Just multiply your number by zero.

$input=$input*1;
//000000123*1 = 123

Answer 2

ltrim($usernumber, "0");

should do the job, according to the PHP Manual

Answer 3

You can drop the leading zeros by converting from a string to a number and back again. For example:

$str = '000006767';
echo ''.+$str; // echo "6767"

Answer 4

$number = "004561";
$number = intval($number, 10);
$number = (string)$number; // if you want it to again be a string

Answer 5

You can use ltrim() and pass the characters that should be removed as second parameter:

$input = ltrim($input, '0');
// 000123 -> 123

ltrim only removes the specified characters (default white space) from the beginning (left side) of the string.

Answer 6

You can always force PHP to parse this as an int. If you need to, you can convert it back to a string later

(int) "000123"