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<?php $array = range(1, 100000); foreach ($array as &$value) { if (empty($value)) { $value = 'Empty'; } } var_dump(count($array));
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = 6, Position 2 = 11
Branch analysis from position: 6
Jump found. Position 1 = 7, Position 2 = 11
Branch analysis from position: 7
Jump found. Position 1 = 9, Position 2 = 10
Branch analysis from position: 9
Jump found. Position 1 = 6
Branch analysis from position: 6
Branch analysis from position: 10
Branch analysis from position: 11
Jump found. Position 1 = -2
Branch analysis from position: 11
filename:       /in/qcev8
function name:  (null)
number of ops:  19
compiled vars:  !0 = $array, !1 = $value
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   INIT_FCALL                                               'range'
         1        SEND_VAL                                                 1
         2        SEND_VAL                                                 100000
         3        DO_ICALL                                         $2      
         4        ASSIGN                                                   !0, $2
   5     5      > FE_RESET_RW                                      $4      !0, ->11
         6    > > FE_FETCH_RW                                              $4, !1, ->11
   6     7    >   ISSET_ISEMPTY_VAR                           293601280  ~5      !1
         8      > JMPZ                                                     ~5, ->10
   7     9    >   ASSIGN                                                   !1, 'Empty'
        10    > > JMP                                                      ->6
        11    >   FE_FREE                                                  $4
  11    12        INIT_FCALL                                               'var_dump'
        13        INIT_FCALL                                               'count'
        14        SEND_VAR                                                 !0
        15        DO_ICALL                                         $7      
        16        SEND_VAR                                                 $7
        17        DO_ICALL                                                 
        18      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0