Question

in the string XX is always changed and string can be longer or shorter and it can be without searched word, where XX is a number
example:

1 kom. nije naručeno, obično dolazi za 5 dana., slični: sony-6am6ptb1a (0 kom.), sony-s006pb1a (-9 kom.)

So from that I need to output just: obično dolazi za 5 dana

So how can I chose just &find in any case?

$find = "obično dolazi za XX dana.";

$string ="1 kom. nije naručeno, obično dolazi za XX dana.";

if (strpos($string,$find) !== false) {
  echo '$string contains $find';
}

I think this is it:

$string = "1 kom. nije naručeno, obično dolazi za XX dana.";

for(int intIndex = 1; intIndex <= 31; intIndex++)
{
 $find = "obično dolazi za " . strval(intIndex) . " dana."

 if (strpos($string,$find)) 
 {
 echo '$string contains $find';
 }
}

Answer 1

I am assuming that the ‘search string’ has a portion (XX) that changes and you don’t necessarily know what it will be in a given situation. So you can’t use strpos because of the unknown segment.

You’ll have to use a regular expression based on the left and right parts of the search string.

Please see PHP Manual: preg_match for more details.

Without knowing what `XX’ represents I can’t offer anything more.

Or…

If you want to return the XX and the left-most and right-most parts are constant…

// given '1 kom. nije naručeno, obično dolazi za XX dana.'

$string = str_replace("1 kom. nije naručeno, obično dolazi za ", "", str_replace(" dana.", "", $string));
// $string now contains the value of 'XX'

print $string;

Output is XX.

Or…

Is this good enough for your needs..? [It is based on what you came up with! 🙂]

<?php
    // just throwing '23' in there to demonstrate the awesome power!
    $string = "1 kom. nije naručeno, obično dolazi za 23 dana.";
    for ($intIndex = 1; $intIndex <= 31; $intIndex++) {
        $find = "1 kom. nije naručeno, obično dolazi za " . strval($intIndex) . " dana.";

        // we test that it's not 'false', because it could be '0'
        if (strpos($string, $find) !== false) {
            echo "$string contains $find";
        }
    }
?>