Question

Here is an example string:

“60 reviews from 12 people, 20% of users”
(Let’s call it $v)

I have been using preg_match_all to get an array with all the numbers

$pattern = '!\d+!';
preg_match_all($pattern, $v, $matches, PREG_SET_ORDER); 

The result I get is:

Array
(
    [0] => Array
        (
            [0] => 60
        )
    [1] => Array
        (
            [0] => 12
        )
    [2] => Array
        (
            [0] => 20
        )
)

But despite trying for some time I haven’t been able to get what I want. What I want is this:

Array
(
    [0] => 60
    [1] => 12
    [2] => 20
)

Maybe should I be using preg_match instead? but with preg_match I only get one value… Or maybe along with a loop? It looks like an ugly hack… There should be a profesional way out there… Thanks in advance to PHP experts! 😉

Answer 1

Presuming the format always stays the same, you can do the following:

<?php

    // Input string/line
    $v = "60 reviews from 12 people, 20% of users";

    // Match regex (0-9; min 1 or max unlimited numbers)
    preg_match_all("/[0-9]{1,}/", $v, $matches);

    // Remove/sub key
    $matches = $matches[0];

    // Echo out
    print_r($matches);

?>

This will output:

 Array ( 
       [0] => 60     // < Access using $matches[0]
       [1] => 12     // < Access using $matches[1]
       [2] => 20     // < Access using $matches[2]
 )