3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $cl = function ($b) use ($a) { echo $a . PHP_EOL; echo $b . PHP_EOL; ++$a; echo PHP_EOL; echo $a . PHP_EOL; echo $b . PHP_EOL; }; $cl(2); $cl(2);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/PGFi8
function name:  (null)
number of ops:  11
compiled vars:  !0 = $a, !1 = $cl
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 1
    5     1        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FPGFi8%3A5%240'
          2        BIND_LEXICAL                                             ~3, !0
          3        ASSIGN                                                   !1, ~3
   14     4        INIT_DYNAMIC_CALL                                        !1
          5        SEND_VAL_EX                                              2
          6        DO_FCALL                                      0          
   15     7        INIT_DYNAMIC_CALL                                        !1
          8        SEND_VAL_EX                                              2
          9        DO_FCALL                                      0          
         10      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FPGFi8%3A5%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/PGFi8
function name:  {closure}
number of ops:  13
compiled vars:  !0 = $b, !1 = $a
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    5     0  E >   RECV                                             !0      
          1        BIND_STATIC                                              !1
    6     2        CONCAT                                           ~2      !1, '%0A'
          3        ECHO                                                     ~2
    7     4        CONCAT                                           ~3      !0, '%0A'
          5        ECHO                                                     ~3
    8     6        PRE_INC                                                  !1
    9     7        ECHO                                                     '%0A'
   10     8        CONCAT                                           ~5      !1, '%0A'
          9        ECHO                                                     ~5
   11    10        CONCAT                                           ~6      !0, '%0A'
         11        ECHO                                                     ~6
   12    12      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FPGFi8%3A5%240

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
152.26 ms | 1394 KiB | 13 Q