3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array( 'filters'=> array('where'=>array('yr'=>1994))); print_r(array_keys($array['filters']['where']));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CZqmA
function name:  (null)
number of ops:  10
compiled vars:  !0 = $array
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        INIT_FCALL                                               'print_r'
          2        INIT_FCALL                                               'array_keys'
          3        FETCH_DIM_R                                      ~2      !0, 'filters'
          4        FETCH_DIM_R                                      ~3      ~2, 'where'
          5        SEND_VAL                                                 ~3
          6        DO_ICALL                                         $4      
          7        SEND_VAR                                                 $4
          8        DO_ICALL                                                 
          9      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
143.19 ms | 1385 KiB | 17 Q