3v4l.org

run code in 300+ PHP versions simultaneously
<?php $c = 'App\Bar\FooControllerABC'; $length = strlen($c); var_dump(strrpos($c, 'Controller') === $length - 10); var_dump('Controller' == substr($c, -10)); echo PHP_EOL; $c = 'App\Bar\FooController'; $length = strlen($c); var_dump(strrpos($c, 'Controller') === $length - 10); var_dump('Controller' == substr($c, -10)); echo PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/I2N7t
function name:  (null)
number of ops:  43
compiled vars:  !0 = $c, !1 = $length
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'App%5CBar%5CFooControllerABC'
    4     1        STRLEN                                           ~3      !0
          2        ASSIGN                                                   !1, ~3
    6     3        INIT_FCALL                                               'var_dump'
          4        INIT_FCALL                                               'strrpos'
          5        SEND_VAR                                                 !0
          6        SEND_VAL                                                 'Controller'
          7        DO_ICALL                                         $5      
          8        SUB                                              ~6      !1, 10
          9        IS_IDENTICAL                                     ~7      $5, ~6
         10        SEND_VAL                                                 ~7
         11        DO_ICALL                                                 
    7    12        INIT_FCALL                                               'var_dump'
         13        INIT_FCALL                                               'substr'
         14        SEND_VAR                                                 !0
         15        SEND_VAL                                                 -10
         16        DO_ICALL                                         $9      
         17        IS_EQUAL                                         ~10     $9, 'Controller'
         18        SEND_VAL                                                 ~10
         19        DO_ICALL                                                 
    8    20        ECHO                                                     '%0A'
   10    21        ASSIGN                                                   !0, 'App%5CBar%5CFooController'
   11    22        STRLEN                                           ~13     !0
         23        ASSIGN                                                   !1, ~13
   13    24        INIT_FCALL                                               'var_dump'
         25        INIT_FCALL                                               'strrpos'
         26        SEND_VAR                                                 !0
         27        SEND_VAL                                                 'Controller'
         28        DO_ICALL                                         $15     
         29        SUB                                              ~16     !1, 10
         30        IS_IDENTICAL                                     ~17     $15, ~16
         31        SEND_VAL                                                 ~17
         32        DO_ICALL                                                 
   14    33        INIT_FCALL                                               'var_dump'
         34        INIT_FCALL                                               'substr'
         35        SEND_VAR                                                 !0
         36        SEND_VAL                                                 -10
         37        DO_ICALL                                         $19     
         38        IS_EQUAL                                         ~20     $19, 'Controller'
         39        SEND_VAL                                                 ~20
         40        DO_ICALL                                                 
   15    41        ECHO                                                     '%0A'
   16    42      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
154.48 ms | 1008 KiB | 16 Q