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<?php $array = [ '7.2' => 1, '72' => 2]; foreach( $array as $k => $v) { print substr($k,0,1).PHP_EOL; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 2, Position 2 = 12
Branch analysis from position: 2
2 jumps found. (Code = 78) Position 1 = 3, Position 2 = 12
Branch analysis from position: 3
1 jumps found. (Code = 42) Position 1 = 2
Branch analysis from position: 2
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/7ikmg
function name:  (null)
number of ops:  14
compiled vars:  !0 = $array, !1 = $v, !2 = $k
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1      > FE_RESET_R                                       $4      !0, ->12
          2    > > FE_FETCH_R                                       ~5      $4, !1, ->12
          3    >   ASSIGN                                                   !2, ~5
    5     4        INIT_FCALL                                               'substr'
          5        SEND_VAR                                                 !2
          6        SEND_VAL                                                 0
          7        SEND_VAL                                                 1
          8        DO_ICALL                                         $7      
          9        CONCAT                                           ~8      $7, '%0A'
         10        ECHO                                                     ~8
    4    11      > JMP                                                      ->2
         12    >   FE_FREE                                                  $4
    6    13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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