Question

How can i found word in string using regex or not in this string

String is Mysql Query

SELECT 
  id,
  name,
  desc,
  (SELECT id as lid FROM comments WHERE lid = id order by id desc limit 1) as lid_com
 FROM posts limit 3

here i want to search for limit in the last of string

string may be

  limit 3
  limit 3, 3
  limit 3 , 3
  limit 3 ,3

3 here may be any number

i tried this regex but i’m beginner

“/ limit [0-9]{0,9}+\,[0-9]{0,9} /i$”

how can i do this

Thank you

Answer 1

$string = 'SELECT
  id,
  name,
  desc,
  (SELECT id as lid FROM comments WHERE lid = id order by id desc limit 1) as lid_com
 FROM posts limit 3 ,3';

echo preg_match('/(limit)\s\d(((\,\s)|(\s\,\s)|(\s\,))\d)?$/i', $string, $matches);  //1
print_r($matches); //$matches['0'] == 'limit 3 ,3'