3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1, 2, 3]; var_dump($a, array_pop($a)); // $a isn't popped -> [1,2,3], 3 $a = [1, 2, 3]; var_dump(array_pop($a), $a); // $a is popped -> 3, [1,2]
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/YMepH
function name:  (null)
number of ops:  17
compiled vars:  !0 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
          1        INIT_FCALL                                               'var_dump'
          2        SEND_VAR                                                 !0
          3        INIT_FCALL                                               'array_pop'
          4        SEND_REF                                                 !0
          5        DO_ICALL                                         $2      
          6        SEND_VAR                                                 $2
          7        DO_ICALL                                                 
    4     8        ASSIGN                                                   !0, <array>
          9        INIT_FCALL                                               'var_dump'
         10        INIT_FCALL                                               'array_pop'
         11        SEND_REF                                                 !0
         12        DO_ICALL                                         $5      
         13        SEND_VAR                                                 $5
         14        SEND_VAR                                                 !0
         15        DO_ICALL                                                 
         16      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
156.37 ms | 1394 KiB | 17 Q