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<?php $str = 'test-213-test-example-demo-1a-3321-0-3555-0'; echo trim(preg_replace('/[^\d-]+|\d+\pL+/', '', $str), '-');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CnHSX
function name:  (null)
number of ops:  12
compiled vars:  !0 = $str
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, 'test-213-test-example-demo-1a-3321-0-3555-0'
    5     1        INIT_FCALL                                               'trim'
          2        INIT_FCALL                                               'preg_replace'
          3        SEND_VAL                                                 '%2F%5B%5E%5Cd-%5D%2B%7C%5Cd%2B%5CpL%2B%2F'
          4        SEND_VAL                                                 ''
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $2      
          7        SEND_VAR                                                 $2
          8        SEND_VAL                                                 '-'
          9        DO_ICALL                                         $3      
         10        ECHO                                                     $3
         11      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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