3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = ", , GUWAHATI, TEZPUR, , BAMUNI HILLS, MAHABHAIRAB TEMPLE, AGNIGARH , "; echo preg_replace('/\s*(?:,\s*)+/', ', ', trim($string, ", \n\r\t\v\x00"));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/LAiWX
function name:  (null)
number of ops:  12
compiled vars:  !0 = $string
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%2C+%2C+GUWAHATI%2C+TEZPUR%2C+%2C+BAMUNI+HILLS%2C+MAHABHAIRAB+TEMPLE%2C+AGNIGARH+%2C+++'
    4     1        INIT_FCALL                                               'preg_replace'
          2        SEND_VAL                                                 '%2F%5Cs%2A%28%3F%3A%2C%5Cs%2A%29%2B%2F'
          3        SEND_VAL                                                 '%2C+'
          4        INIT_FCALL                                               'trim'
          5        SEND_VAR                                                 !0
          6        SEND_VAL                                                 '%2C+%0A%0D%09%0B%00'
          7        DO_ICALL                                         $2      
          8        SEND_VAR                                                 $2
          9        DO_ICALL                                         $3      
         10        ECHO                                                     $3
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
137.39 ms | 997 KiB | 15 Q