3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = '0'; var_dump($test === (0|'0')); var_dump($test == 0); var_dump($test == '0'); var_dump($test === 0||'0');
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 47) Position 1 = 16, Position 2 = 17
Branch analysis from position: 16
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 17
filename:       /in/YScb3
function name:  (null)
number of ops:  20
compiled vars:  !0 = $test
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, '0'
    3     1        INIT_FCALL                                               'var_dump'
          2        IS_IDENTICAL                                     ~2      !0, 0
          3        SEND_VAL                                                 ~2
          4        DO_ICALL                                                 
    4     5        INIT_FCALL                                               'var_dump'
          6        IS_EQUAL                                         ~4      !0, 0
          7        SEND_VAL                                                 ~4
          8        DO_ICALL                                                 
    5     9        INIT_FCALL                                               'var_dump'
         10        IS_EQUAL                                         ~6      !0, '0'
         11        SEND_VAL                                                 ~6
         12        DO_ICALL                                                 
    6    13        INIT_FCALL                                               'var_dump'
         14        IS_IDENTICAL                                     ~8      !0, 0
         15      > JMPNZ_EX                                         ~8      ~8, ->17
         16    >   BOOL                                             ~8      '0'
         17    >   SEND_VAL                                                 ~8
         18        DO_ICALL                                                 
         19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
147.75 ms | 1386 KiB | 15 Q