3v4l.org

run code in 300+ PHP versions simultaneously
<?php function ifsetor(&$value, $default = null) { var_dump($value); return isset($value) ? $value : $default; } $data = ['people' => [['name' => 'Mario']]]; print ifsetor($data['people'][5]['favorite-color'], 'red');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YhAIk
function name:  (null)
number of ops:  10
compiled vars:  !0 = $data
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   ASSIGN                                                   !0, <array>
    9     1        INIT_FCALL                                               'ifsetor'
          2        FETCH_DIM_W                                      $2      !0, 'people'
          3        FETCH_DIM_W                                      $3      $2, 5
          4        FETCH_DIM_W                                      $4      $3, 'favorite-color'
          5        SEND_REF                                                 $4
          6        SEND_VAL                                                 'red'
          7        DO_FCALL                                      0  $5      
          8        ECHO                                                     $5
          9      > RETURN                                                   1

Function ifsetor:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 7, Position 2 = 9
Branch analysis from position: 7
1 jumps found. (Code = 42) Position 1 = 10
Branch analysis from position: 10
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 9
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YhAIk
function name:  ifsetor
number of ops:  12
compiled vars:  !0 = $value, !1 = $default
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        RECV_INIT                                        !1      null
    4     2        INIT_FCALL                                               'var_dump'
          3        SEND_VAR                                                 !0
          4        DO_ICALL                                                 
    5     5        ISSET_ISEMPTY_CV                                         !0
          6      > JMPZ                                                     ~3, ->9
          7    >   QM_ASSIGN                                        ~4      !0
          8      > JMP                                                      ->10
          9    >   QM_ASSIGN                                        ~4      !1
         10    > > RETURN                                                   ~4
    6    11*     > RETURN                                                   null

End of function ifsetor

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
182.72 ms | 1398 KiB | 16 Q