Question

I need to get substring from a string where it will give output of first 25 characters from different aspects. Here substring should only consider commas (,) not spaces.

Scenario 1:

$str = "the, quick, brown, fox";

$res = "the, quick, brown, fox";

Scenario 2:

$str = "the, quick, brown, fox, jumps, over, the, lazy, dog!";

$res = "the, quick, brown, fox, more";

Scenario 3:

$str = "the quick, brown fox, jumps over, the lazy dog!";

$res = "the quick, brown fox, more";

Scenario 4:

$str = "the quick brown fox, jumps over, the lazy dog!";

$res = "the quick brown fox, more";

Please help! Thanks.

Extremely sorry for my English!

Answer 1

All 4 Scenarios tested

(assuming that a comma is within the first 25 characters )

function stringm($string, $length = 25){

   if(strlen($string) >= $length){
       $string = substr($string, 0, $length-1);
        $str_array = explode(",", $string);
        // add logics here to check array len if comma may not be within the first 25 characters 
        array_pop($str_array);
        $string = implode(",", $str_array)  . ', more';
   }

   return $string;
}


echo stringm('the, quick, brown, fox')  . '<br>';
echo stringm('the, quick, brown, fox, jumps, over, the, lazy, dog!')  . '<br>';
echo stringm('the quick, brown fox, jumps over, the lazy dog!')  . '<br>';
echo stringm('the quick brown fox, jumps over, the lazy dog!')  . '<br>';

the, quick, brown, fox

the, quick, brown, fox, more

the quick, brown fox, more

the quick brown fox, more