3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo "BEFORE" . PHP_EOL . PHP_EOL; $myArray = [ 'test'=> ['label'=> ['show'=> false]] ]; $myArray[array_key_last($myArray)]['label']['show'] = true; var_dump($myArray); echo PHP_EOL . PHP_EOL. "AFTER" . PHP_EOL . PHP_EOL; $myArray = [ 'test'=> ['label'=> ['show'=> false]] ]; array_last($myArray)['label']['show'] = true; var_dump($myArray);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/Hs5R5
function name:  (null)
number of ops:  25
compiled vars:  !0 = $myArray
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ECHO                                                         'BEFORE%0A%0A'
    4     1        ASSIGN                                                       !0, <array>
    8     2        INIT_FCALL                                                   'array_key_last'
          3        SEND_VAR                                                     !0
          4        DO_ICALL                                             $2      
          5        FETCH_DIM_W                                          $3      !0, $2
          6        FETCH_DIM_W                                          $4      $3, 'label'
          7        ASSIGN_DIM                                                   $4, 'show'
          8        OP_DATA                                                      <true>
    9     9        INIT_FCALL                                                   'var_dump'
         10        SEND_VAR                                                     !0
         11        DO_ICALL                                                     
   11    12        ECHO                                                         '%0A%0AAFTER%0A%0A'
   13    13        ASSIGN                                                       !0, <array>
   17    14        INIT_FCALL                                                   'array_last'
         15        SEND_VAR                                                     !0
         16        DO_ICALL                                             $8      
         17        SEPARATE                                             $8      $8
         18        FETCH_DIM_W                                          $9      $8, 'label'
         19        ASSIGN_DIM                                                   $9, 'show'
         20        OP_DATA                                                      <true>
   18    21        INIT_FCALL                                                   'var_dump'
         22        SEND_VAR                                                     !0
         23        DO_ICALL                                                     
         24      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
161.5 ms | 1183 KiB | 16 Q