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<?php $data = []; $data['phone'] = '2514017257'; $matches = []; preg_match("/\+1\d{10}/", $data['phone'], $matches); var_dump(preg_match("/\+1\d{10}/", $data['phone'])); print_r($matches); $data['phone'] = '+12514017257'; $matches = []; preg_match("/\+1\d{10}/", $data['phone'], $matches); print_r($matches);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/63jRn
function name:  (null)
number of ops:  34
compiled vars:  !0 = $data, !1 = $matches
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    4     1        ASSIGN_DIM                                               !0, 'phone'
          2        OP_DATA                                                  '2514017257'
    6     3        ASSIGN                                                   !1, <array>
    7     4        INIT_FCALL                                               'preg_match'
          5        SEND_VAL                                                 '%2F%5C%2B1%5Cd%7B10%7D%2F'
          6        FETCH_DIM_R                                      ~5      !0, 'phone'
          7        SEND_VAL                                                 ~5
          8        SEND_REF                                                 !1
          9        DO_ICALL                                                 
    8    10        INIT_FCALL                                               'var_dump'
         11        INIT_FCALL                                               'preg_match'
         12        SEND_VAL                                                 '%2F%5C%2B1%5Cd%7B10%7D%2F'
         13        FETCH_DIM_R                                      ~7      !0, 'phone'
         14        SEND_VAL                                                 ~7
         15        DO_ICALL                                         $8      
         16        SEND_VAR                                                 $8
         17        DO_ICALL                                                 
   10    18        INIT_FCALL                                               'print_r'
         19        SEND_VAR                                                 !1
         20        DO_ICALL                                                 
   12    21        ASSIGN_DIM                                               !0, 'phone'
         22        OP_DATA                                                  '%2B12514017257'
   14    23        ASSIGN                                                   !1, <array>
   15    24        INIT_FCALL                                               'preg_match'
         25        SEND_VAL                                                 '%2F%5C%2B1%5Cd%7B10%7D%2F'
         26        FETCH_DIM_R                                      ~13     !0, 'phone'
         27        SEND_VAL                                                 ~13
         28        SEND_REF                                                 !1
         29        DO_ICALL                                                 
   16    30        INIT_FCALL                                               'print_r'
         31        SEND_VAR                                                 !1
         32        DO_ICALL                                                 
         33      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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