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<?php $fd = fopen('php://stdin', 'r'); while (!feof($fd)) { $file = var_dump(fgets($fd)); }
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 42) Position 1 = 13
Branch analysis from position: 13
2 jumps found. (Code = 44) Position 1 = 18, Position 2 = 6
Branch analysis from position: 18
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 6
2 jumps found. (Code = 44) Position 1 = 18, Position 2 = 6
Branch analysis from position: 18
Branch analysis from position: 6
filename:       /in/7RSgJ
function name:  (null)
number of ops:  19
compiled vars:  !0 = $fd, !1 = $file
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   INIT_FCALL                                               'fopen'
         1        SEND_VAL                                                 'php%3A%2F%2Fstdin'
         2        SEND_VAL                                                 'r'
         3        DO_ICALL                                         $2      
         4        ASSIGN                                                   !0, $2
   3     5      > JMP                                                      ->13
   4     6    >   INIT_FCALL                                               'var_dump'
         7        INIT_FCALL                                               'fgets'
         8        SEND_VAR                                                 !0
         9        DO_ICALL                                         $4      
        10        SEND_VAR                                                 $4
        11        DO_ICALL                                         $5      
        12        ASSIGN                                                   !1, $5
   3    13    >   INIT_FCALL                                               'feof'
        14        SEND_VAR                                                 !0
        15        DO_ICALL                                         $7      
        16        BOOL_NOT                                         ~8      $7
        17      > JMPNZ                                                    ~8, ->6
   5    18    > > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0