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<?php $re = '/(\d\.?)+/'; $str = '2.1.0'; preg_match($re, $str, $matches, PREG_OFFSET_CAPTURE, 0); // Print the entire match result var_dump($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/gsIfV
function name:  (null)
number of ops:  13
compiled vars:  !0 = $re, !1 = $str, !2 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%2F%28%5Cd%5C.%3F%29%2B%2F'
    4     1        ASSIGN                                                   !1, '2.1.0'
    6     2        INIT_FCALL                                               'preg_match'
          3        SEND_VAR                                                 !0
          4        SEND_VAR                                                 !1
          5        SEND_REF                                                 !2
          6        SEND_VAL                                                 256
          7        SEND_VAL                                                 0
          8        DO_ICALL                                                 
    9     9        INIT_FCALL                                               'var_dump'
         10        SEND_VAR                                                 !2
         11        DO_ICALL                                                 
         12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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