3v4l.org

run code in 300+ PHP versions simultaneously
<?php $resultSet = [ ['keyw' => 'sam , ram,shyam'], ['keyw' => 'sam,ram,shyam, mohan'], ['keyw' => 'sam, ram, shyam ,mohan,salman,babu , karan'], ]; $unique = []; foreach ($resultSet as $row) { $unique += array_flip(preg_split( '/ *, */', $row['keyw'], 0, PREG_SPLIT_NO_EMPTY )); } var_export(array_keys($unique));
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 3, Position 2 = 16
Branch analysis from position: 3
2 jumps found. (Code = 78) Position 1 = 4, Position 2 = 16
Branch analysis from position: 4
1 jumps found. (Code = 42) Position 1 = 3
Branch analysis from position: 3
Branch analysis from position: 16
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 16
filename:       /in/6Tu5N
function name:  (null)
number of ops:  24
compiled vars:  !0 = $resultSet, !1 = $unique, !2 = $row
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    9     1        ASSIGN                                                   !1, <array>
   10     2      > FE_RESET_R                                       $5      !0, ->16
          3    > > FE_FETCH_R                                               $5, !2, ->16
   11     4    >   INIT_FCALL                                               'array_flip'
          5        INIT_FCALL                                               'preg_split'
   12     6        SEND_VAL                                                 '%2F+%2A%2C+%2A%2F'
   13     7        FETCH_DIM_R                                      ~6      !2, 'keyw'
          8        SEND_VAL                                                 ~6
   14     9        SEND_VAL                                                 0
   15    10        SEND_VAL                                                 1
   11    11        DO_ICALL                                         $7      
   15    12        SEND_VAR                                                 $7
   11    13        DO_ICALL                                         $8      
   15    14        ASSIGN_OP                                     1          !1, $8
   10    15      > JMP                                                      ->3
         16    >   FE_FREE                                                  $5
   18    17        INIT_FCALL                                               'var_export'
         18        INIT_FCALL                                               'array_keys'
         19        SEND_VAR                                                 !1
         20        DO_ICALL                                         $10     
         21        SEND_VAR                                                 $10
         22        DO_ICALL                                                 
         23      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
153.74 ms | 1005 KiB | 17 Q