3v4l.org

run code in 300+ PHP versions simultaneously
<?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:  28
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        INIT_FCALL                                               'preg_match'
          4        SEND_VAL                                                 '%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'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $5      
          7        SEND_VAR                                                 $5
          8        DO_ICALL                                                 
    7     9        CAST                                          5  ~7      0.25
         10        ASSIGN                                                   !1, ~7
    9    11        INIT_FCALL                                               'var_dump'
         12        INIT_FCALL                                               'preg_match'
         13        SEND_VAL                                                 '%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'
         14        SEND_VAR                                                 !1
         15        DO_ICALL                                         $9      
         16        SEND_VAR                                                 $9
         17        DO_ICALL                                                 
   11    18        CAST                                          5  ~11     '.25'
         19        ASSIGN                                                   !2, ~11
   13    20        INIT_FCALL                                               'var_dump'
         21        INIT_FCALL                                               'preg_match'
         22        SEND_VAL                                                 '%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'
         23        SEND_VAR                                                 !2
         24        DO_ICALL                                         $13     
         25        SEND_VAR                                                 $13
         26        DO_ICALL                                                 
         27      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


preferences:
234.09 ms | 1069 KiB | 15 Q