3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = 'gehr'; function foo($x) { return $x('gehr') === 'true'; } echo foo($x);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8udbi
function name:  (null)
number of ops:  6
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, 'gehr'
   11     1        INIT_FCALL                                               'foo'
          2        SEND_VAR                                                 !0
          3        DO_FCALL                                      0  $2      
          4        ECHO                                                     $2
          5      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/8udbi
function name:  foo
number of ops:  7
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   RECV                                             !0      
    8     1        INIT_DYNAMIC_CALL                                        !0
          2        SEND_VAL_EX                                              'gehr'
          3        DO_FCALL                                      0  $1      
          4        IS_IDENTICAL                                     ~2      $1, 'true'
          5      > RETURN                                                   ~2
    9     6*     > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
173.16 ms | 1397 KiB | 14 Q