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<?php foreach ([NULL, '', 0, '0'] as $val) { echo var_export(is_numeric($val), TRUE) . PHP_EOL; }
Finding entry points
Branch analysis from position: 0
2 jumps found. (Code = 77) Position 1 = 1, Position 2 = 12
Branch analysis from position: 1
2 jumps found. (Code = 78) Position 1 = 2, Position 2 = 12
Branch analysis from position: 2
1 jumps found. (Code = 42) Position 1 = 1
Branch analysis from position: 1
Branch analysis from position: 12
1 jumps found. (Code = 62) Position 1 = -2
Branch analysis from position: 12
filename:       /in/523Qg
function name:  (null)
number of ops:  14
compiled vars:  !0 = $val
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E > > FE_RESET_R                                       $1      <array>, ->12
          1    > > FE_FETCH_R                                               $1, !0, ->12
    4     2    >   INIT_FCALL                                               'var_export'
          3        INIT_FCALL                                               'is_numeric'
          4        SEND_VAR                                                 !0
          5        DO_ICALL                                         $2      
          6        SEND_VAR                                                 $2
          7        SEND_VAL                                                 <true>
          8        DO_ICALL                                         $3      
          9        CONCAT                                           ~4      $3, '%0A'
         10        ECHO                                                     ~4
    3    11      > JMP                                                      ->1
         12    >   FE_FREE                                                  $1
    5    13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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