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<?php $number = 1.00; var_dump($number === 1); var_dump((string) ($number . ' ')); print strlen(substr(strrchr((string) $number, '.'), 1));
based on lhC93
Finding entry points
Branch analysis from position: 0
Jump found. (Code = 62) Position 1 = -2
filename:       /in/qVHTg
function name:  (null)
number of ops:  22
compiled vars:  !0 = $number
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   ASSIGN                                                   !0, 1
   4     1        INIT_FCALL                                               'var_dump'
         2        IS_IDENTICAL                                     ~2      !0, 1
         3        SEND_VAL                                                 ~2
         4        DO_ICALL                                                 
   5     5        INIT_FCALL                                               'var_dump'
         6        CONCAT                                           ~4      !0, '+'
         7        CAST                                          6  ~5      ~4
         8        SEND_VAL                                                 ~5
         9        DO_ICALL                                                 
   7    10        INIT_FCALL                                               'substr'
        11        INIT_FCALL                                               'strrchr'
        12        CAST                                          6  ~7      !0
        13        SEND_VAL                                                 ~7
        14        SEND_VAL                                                 '.'
        15        DO_ICALL                                         $8      
        16        SEND_VAR                                                 $8
        17        SEND_VAL                                                 1
        18        DO_ICALL                                         $9      
        19        STRLEN                                           ~10     $9
        20        ECHO                                                     ~10
        21      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0