php strip leading zeros and 0 decimal values

Question

This falls into the category of 'I'm sure there is a cleaner way to do this' although it works perfectly well. Maybe some kind of function.

I have lists of values such as 01.0, 09.5, 10.0, 11.5,

I want the values to always exclude the leading 0 and only keep the decimal portion if it it contains a .5. There will never be any other decimal value. My current code is:

$data = '09.5'; //just an example value

if (substr($data,0,1) == '0' ) {
    $data = substr($data, 1);
}
if (stripos($data, '.0') !== FALSE ) {
    $data = str_replace('.0','',$data);
}
print $data;

You'll want to look at regular expressions and the preg_replace function. — Andy Lester
– Andy Lester, Commented Apr 9, 2014 at 17:54

John Conde · Accepted Answer · 2014-04-09 18:01:03Z

4

Just cast it to a float:

$data = '09.5';
echo (float) $data; // 9.5

$data = '09.0';
echo (float) $data; // 9

$data = '010';
echo (float) $data;  // 10

Demo

You can also use floatval()

echo floatval($data);

edited Apr 9, 2014 at 18:01

answered Apr 9, 2014 at 17:55

John Conde

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3 Comments

kojiro Over a year ago

I suspect OP's example: there will never be any other decimal value makes me think there will be integer-like strings with leading zeros. (float) '010' is, of course, 8.

Ne Ma Over a year ago

I was curious about this but 3v4l.org/INBiF confirms my suspicions that your second example still returns 9.5

John Conde Over a year ago

My second example uses 09.0. It can't return 9.5.

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