fork download
copy 
  1. <?php
  2.  
  3. $string = "field1,field2,(if(isnull(table.id_),1,table.id_)) as field3,field4;";
  4.  
  5. preg_match_all(
  6.    "/^[^\(]+|[^\)]+$|([a-zA-Z]\w*+(?:[.][a-zA-Z]\w*+)?)(?!\s*['\"(])/"
  7.   ,$string
  8.   ,$matches
  9.  );
  10.  
  11. $i = 0;
  12. foreach ($matches[1] as $match) {
  13.   if (!empty($match)) {
  14.     print($matches[0][$i]) . "\n";
  15.   }
  16.   $i++;
  17. }
  18.  
Success #stdin #stdout 0.01s 23856KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
table.id_
table.id_
https://ideone.com/CqaAwf
language:
PHP (php 7.3.5)
created:
5 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!