3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function isCallable($bar) { return is_callable($bar); } } $foo = new Foo; $a = function() {}; var_dump($foo->isCallable($a));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/019G4
function name:  (null)
number of ops:  12
compiled vars:  !0 = $foo, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    8     0  E >   NEW                                              $2      'Foo'
          1        DO_FCALL                                      0          
          2        ASSIGN                                                   !0, $2
   10     3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2F019G4%3A10%240'
          4        ASSIGN                                                   !1, ~5
   12     5        INIT_FCALL                                               'var_dump'
          6        INIT_METHOD_CALL                                         !0, 'isCallable'
          7        SEND_VAR_EX                                              !1
          8        DO_FCALL                                      0  $7      
          9        SEND_VAR                                                 $7
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2F019G4%3A10%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/019G4
function name:  {closure}
number of ops:  1
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   10     0  E > > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2F019G4%3A10%240

Class Foo:
Function iscallable:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/019G4
function name:  isCallable
number of ops:  6
compiled vars:  !0 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        INIT_FCALL                                               'is_callable'
          2        SEND_VAR                                                 !0
          3        DO_ICALL                                         $1      
          4      > RETURN                                                   $1
    5     5*     > RETURN                                                   null

End of function iscallable

End of class Foo.

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
155.8 ms | 1395 KiB | 17 Q