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<?php $sPhoneNumber = "+3999999999999"; $sPhoneNumber = "3999999999999"; $sPhoneNumber = "39 99999999999"; $sPhoneNumber = "0039 99999999999"; $sPhoneNumber = "+ 39 999 99999999"; $sPhoneNumber = "+003999999999999"; $result = preg_replace('~^[0\D]++|\D++~', '', $sPhoneNumber); echo $result;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/X5Aqm
function name:  (null)
number of ops:  14
compiled vars:  !0 = $sPhoneNumber, !1 = $result
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, '%2B3999999999999'
    5     1        ASSIGN                                                   !0, '3999999999999'
    6     2        ASSIGN                                                   !0, '39+99999999999'
    7     3        ASSIGN                                                   !0, '0039+99999999999'
    8     4        ASSIGN                                                   !0, '%2B+39+999+99999999'
    9     5        ASSIGN                                                   !0, '%2B003999999999999'
   11     6        INIT_FCALL                                               'preg_replace'
          7        SEND_VAL                                                 '%7E%5E%5B0%5CD%5D%2B%2B%7C%5CD%2B%2B%7E'
          8        SEND_VAL                                                 ''
          9        SEND_VAR                                                 !0
         10        DO_ICALL                                         $8      
         11        ASSIGN                                                   !1, $8
   13    12        ECHO                                                     !1
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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