3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($a, $b) { if ($a) echo('out'); if ($b) echo('in'); else echo('else'); } foo(true, false); echo '---'; foo(false, true);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/KOaIr
function name:  (null)
number of ops:  10
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   12     0  E >   INIT_FCALL                                               'foo'
          1        SEND_VAL                                                 <true>
          2        SEND_VAL                                                 <false>
          3        DO_FCALL                                      0          
   13     4        ECHO                                                     '---'
   14     5        INIT_FCALL                                               'foo'
          6        SEND_VAL                                                 <false>
          7        SEND_VAL                                                 <true>
          8        DO_FCALL                                      0          
          9      > RETURN                                                   1

Function foo:
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 43) Position 1 = 3, Position 2 = 4
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 5, Position 2 = 7
Branch analysis from position: 5
1 jumps found. (Code = 42) Position 1 = 8
Branch analysis from position: 8
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 7
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 4
filename:       /in/KOaIr
function name:  foo
number of ops:  9
compiled vars:  !0 = $a, !1 = $b
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
          1        RECV                                             !1      
    4     2      > JMPZ                                                     !0, ->4
          3    >   ECHO                                                     'out'
    5     4    > > JMPZ                                                     !1, ->7
          5    >   ECHO                                                     'in'
          6      > JMP                                                      ->8
    6     7    >   ECHO                                                     'else'
   10     8    > > RETURN                                                   null

End of function foo

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
147.54 ms | 1397 KiB | 15 Q