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<?php $course_id = "SW_3200R50S14C"; preg_match("/[0-9]+/",$course_id, $matches); print_r($matches); preg_match("/R[0-9]+/",$course_id, $matches); print_r($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/9FGnc
function name:  (null)
number of ops:  18
compiled vars:  !0 = $course_id, !1 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'SW_3200R50S14C'
    5     1        INIT_FCALL                                               'preg_match'
          2        SEND_VAL                                                 '%2F%5B0-9%5D%2B%2F'
          3        SEND_VAR                                                 !0
          4        SEND_REF                                                 !1
          5        DO_ICALL                                                 
    7     6        INIT_FCALL                                               'print_r'
          7        SEND_VAR                                                 !1
          8        DO_ICALL                                                 
    9     9        INIT_FCALL                                               'preg_match'
         10        SEND_VAL                                                 '%2FR%5B0-9%5D%2B%2F'
         11        SEND_VAR                                                 !0
         12        SEND_REF                                                 !1
         13        DO_ICALL                                                 
   11    14        INIT_FCALL                                               'print_r'
         15        SEND_VAR                                                 !1
         16        DO_ICALL                                                 
         17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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