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<?php echo is_numeric(0) . PHP_EOL; echo is_numeric(2) . PHP_EOL; echo is_numeric("2.0") . PHP_EOL; echo is_numeric("") . PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/tfHUQ
function name:  (null)
number of ops:  21
compiled vars:  none
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'is_numeric'
          1        SEND_VAL                                                 0
          2        DO_ICALL                                         $0      
          3        CONCAT                                           ~1      $0, '%0A'
          4        ECHO                                                     ~1
    4     5        INIT_FCALL                                               'is_numeric'
          6        SEND_VAL                                                 2
          7        DO_ICALL                                         $2      
          8        CONCAT                                           ~3      $2, '%0A'
          9        ECHO                                                     ~3
    5    10        INIT_FCALL                                               'is_numeric'
         11        SEND_VAL                                                 '2.0'
         12        DO_ICALL                                         $4      
         13        CONCAT                                           ~5      $4, '%0A'
         14        ECHO                                                     ~5
    6    15        INIT_FCALL                                               'is_numeric'
         16        SEND_VAL                                                 ''
         17        DO_ICALL                                         $6      
         18        CONCAT                                           ~7      $6, '%0A'
         19        ECHO                                                     ~7
         20      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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