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<?php $in = (float) .25; var_dump(preg_match('/([0-9]*(_[0-9]+)*[\.][0-9]+)|([0-9]+[\.][0-9]*(_[0-9]+)*)/', $in)); $in2 = (float) 0.25; var_dump(preg_match('/([0-9]*(_[0-9]+)*[\.][0-9]+)|([0-9]+[\.][0-9]*(_[0-9]+)*)/', $in2)); $in3 = (float) ".25"; var_dump(preg_match('/([0-9]*(_[0-9]+)*[\.][0-9]+)|([0-9]+[\.][0-9]*(_[0-9]+)*)/', $in3));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/4RoBX
function name:  (null)
number of ops:  19
compiled vars:  !0 = $in, !1 = $in2, !2 = $in3
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   CAST                                              5  ~3      0.25
          1        ASSIGN                                                       !0, ~3
    5     2        INIT_FCALL                                                   'var_dump'
          3        FRAMELESS_ICALL_2                preg_match          ~5      '%2F%28%5B0-9%5D%2A%28_%5B0-9%5D%2B%29%2A%5B%5C.%5D%5B0-9%5D%2B%29%7C%28%5B0-9%5D%2B%5B%5C.%5D%5B0-9%5D%2A%28_%5B0-9%5D%2B%29%2A%29%2F', !0
          4        SEND_VAL                                                     ~5
          5        DO_ICALL                                                     
    7     6        CAST                                              5  ~7      0.25
          7        ASSIGN                                                       !1, ~7
    9     8        INIT_FCALL                                                   'var_dump'
          9        FRAMELESS_ICALL_2                preg_match          ~9      '%2F%28%5B0-9%5D%2A%28_%5B0-9%5D%2B%29%2A%5B%5C.%5D%5B0-9%5D%2B%29%7C%28%5B0-9%5D%2B%5B%5C.%5D%5B0-9%5D%2A%28_%5B0-9%5D%2B%29%2A%29%2F', !1
         10        SEND_VAL                                                     ~9
         11        DO_ICALL                                                     
   11    12        CAST                                              5  ~11     '.25'
         13        ASSIGN                                                       !2, ~11
   13    14        INIT_FCALL                                                   'var_dump'
         15        FRAMELESS_ICALL_2                preg_match          ~13     '%2F%28%5B0-9%5D%2A%28_%5B0-9%5D%2B%29%2A%5B%5C.%5D%5B0-9%5D%2B%29%7C%28%5B0-9%5D%2B%5B%5C.%5D%5B0-9%5D%2A%28_%5B0-9%5D%2B%29%2A%29%2F', !2
         16        SEND_VAL                                                     ~13
         17        DO_ICALL                                                     
         18      > RETURN                                                       1

Generated using Vulcan Logic Dumper, using php 8.5.0


preferences:
158.6 ms | 2093 KiB | 14 Q