How to remove all leading zeroes in a string

Question

If I have a string

00020300504
00000234892839
000239074

how can I get rid of the leading zeroes so that I will only have this

Answer 1

Don't know why people are using so complex methods to achieve such a simple thing! And regex? Wow!

Here you go, the easiest and simplest way (as explained here: https://nabtron.com/kiss-code/ ):

$a = '000000000000001';
$a += 0;

echo $a; // will output 1

Answer 2

you can add "+" in your variable,

example :

$numString = "0000001123000";
echo +$numString;

Answer 3

Im Fixed with this way.

its very simple. only pass a string its remove zero start of string.

function removeZeroString($str='')
{
    while(trim(substr($str,0,1)) === '0')
    {
        $str = ltrim($str,'0');
    }
    return $str;
}

Answer 4

Similar to another suggestion, except will not obliterate actual zero:

if (ltrim($str, '0') != '') {
    $str = ltrim($str, '0');
} else {
    $str = '0';
}

Or as was suggested (as of PHP 5.3), shorthand ternary operator can be used:

$str = ltrim($str, '0') ?: '0';