3v4l.org

run code in 300+ PHP versions simultaneously
<?php $vars=array( '^hello', 123, false, 1.23, ); foreach($vars as $var) { echo $var, ' => ', (($var[0]=='^') ? substr($var,1) : 'false'), PHP_EOL; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 18
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 18
Branch analysis from position: 3
2 jumps found. (Code = 43) Position 1 = 8, Position 2 = 14
Branch analysis from position: 8
1 jumps found. (Code = 42) Position 1 = 15
Branch analysis from position: 15
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 14
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 18
filename:       /in/ckYnf
function name:  (null)
number of ops:  20
compiled vars:  !0 = $vars, !1 = $var
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    4     0  E >   ASSIGN                                                   !0, <array>
   11     1      > FE_RESET_R                                       $3      !0, ->18
          2    > > FE_FETCH_R                                               $3, !1, ->18
   12     3    >   ECHO                                                     !1
          4        ECHO                                                     '+%3D%3E+'
          5        FETCH_DIM_R                                      ~4      !1, 0
          6        IS_EQUAL                                                 ~4, '%5E'
          7      > JMPZ                                                     ~5, ->14
          8    >   INIT_FCALL                                               'substr'
          9        SEND_VAR                                                 !1
         10        SEND_VAL                                                 1
         11        DO_ICALL                                         $6      
         12        QM_ASSIGN                                        ~7      $6
         13      > JMP                                                      ->15
         14    >   QM_ASSIGN                                        ~7      'false'
         15    >   ECHO                                                     ~7
         16        ECHO                                                     '%0A'
   11    17      > JMP                                                      ->2
         18    >   FE_FREE                                                  $3
   13    19      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
149.47 ms | 1395 KiB | 15 Q