3v4l.org

run code in 300+ PHP versions simultaneously
<?php $xml = new SimpleXMLElement('<tag></tag>'); echo (string)$xml; echo ' -- An empty SimpleXMLElement is '; var_export((bool) $xml); echo "\n"; $xml = new SimpleXMLElement('<tag>data</tag>'); echo (string)$xml; echo ' -- A SimpleXMLElement with data is '; var_export((bool) $xml); echo "\n"; $obj = new stdClass(); echo (string) $obj; echo ' -- An empty stdClass is '; var_export((bool) $obj);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/udIXl
function name:  (null)
number of ops:  35
compiled vars:  !0 = $xml, !1 = $obj
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   NEW                                              $2      'SimpleXMLElement'
          1        SEND_VAL_EX                                              '%3Ctag%3E%3C%2Ftag%3E'
          2        DO_FCALL                                      0          
          3        ASSIGN                                                   !0, $2
    3     4        CAST                                          6  ~5      !0
          5        ECHO                                                     ~5
    4     6        ECHO                                                     '+--+An+empty+SimpleXMLElement+is+'
    5     7        INIT_FCALL                                               'var_export'
          8        BOOL                                             ~6      !0
          9        SEND_VAL                                                 ~6
         10        DO_ICALL                                                 
    6    11        ECHO                                                     '%0A'
    8    12        NEW                                              $8      'SimpleXMLElement'
         13        SEND_VAL_EX                                              '%3Ctag%3Edata%3C%2Ftag%3E'
         14        DO_FCALL                                      0          
         15        ASSIGN                                                   !0, $8
    9    16        CAST                                          6  ~11     !0
         17        ECHO                                                     ~11
   10    18        ECHO                                                     '+--+A+SimpleXMLElement+with+data+is+'
   11    19        INIT_FCALL                                               'var_export'
         20        BOOL                                             ~12     !0
         21        SEND_VAL                                                 ~12
         22        DO_ICALL                                                 
   12    23        ECHO                                                     '%0A'
   14    24        NEW                                              $14     'stdClass'
         25        DO_FCALL                                      0          
         26        ASSIGN                                                   !1, $14
   15    27        CAST                                          6  ~17     !1
         28        ECHO                                                     ~17
   16    29        ECHO                                                     '+--+An+empty+stdClass+is+'
   17    30        INIT_FCALL                                               'var_export'
         31        BOOL                                             ~18     !1
         32        SEND_VAL                                                 ~18
         33        DO_ICALL                                                 
         34      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
157.63 ms | 1388 KiB | 15 Q