3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array("lol","lulz","42","\\blub"); array_walk($array, function(&$elm) { $elm = str_replace('\\', '\\\\', $elm); var_dump($elm); }); $value = json_encode($array);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OAQlS
function name:  (null)
number of ops:  11
compiled vars:  !0 = $array, !1 = $value
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        INIT_FCALL                                               'array_walk'
          2        SEND_REF                                                 !0
          3        DECLARE_LAMBDA_FUNCTION                                  '%00%7Bclosure%7D%2Fin%2FOAQlS%3A3%240'
    6     4        SEND_VAL                                                 ~3
          5        DO_ICALL                                                 
    7     6        INIT_FCALL                                               'json_encode'
          7        SEND_VAR                                                 !0
          8        DO_ICALL                                         $5      
          9        ASSIGN                                                   !1, $5
         10      > RETURN                                                   1

Function %00%7Bclosure%7D%2Fin%2FOAQlS%3A3%240:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/OAQlS
function name:  {closure}
number of ops:  11
compiled vars:  !0 = $elm
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   RECV                                             !0      
    4     1        INIT_FCALL                                               'str_replace'
          2        SEND_VAL                                                 '%5C'
          3        SEND_VAL                                                 '%5C%5C'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $1      
          6        ASSIGN                                                   !0, $1
    5     7        INIT_FCALL                                               'var_dump'
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                                 
    6    10      > RETURN                                                   null

End of function %00%7Bclosure%7D%2Fin%2FOAQlS%3A3%240

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
172.56 ms | 1395 KiB | 21 Q