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<?php $a = [ 'sss4444dfdf', //лишние '444444', //много 'sdfsdf', //все не то '', // '4', //мало ]; $i = 0; echo(preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])?:0).PHP_EOL; echo(preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])?:0).PHP_EOL; echo(preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])?:0).PHP_EOL; echo(preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])?:0).PHP_EOL; echo(preg_filter('/^\D*(\d{2,4}).*$/', '$1', $a[$i++])?:0).PHP_EOL;
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/p3PE0
function name:  (null)
number of ops:  58
compiled vars:  !0 = $a, !1 = $i
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    9     1        ASSIGN                                                   !1, 0
   10     2        INIT_FCALL                                               'preg_filter'
          3        SEND_VAL                                                 '%2F%5E%5CD%2A%28%5Cd%7B2%2C4%7D%29.%2A%24%2F'
          4        SEND_VAL                                                 '%241'
          5        POST_INC                                         ~4      !1
          6        FETCH_DIM_R                                      ~5      !0, ~4
          7        SEND_VAL                                                 ~5
          8        DO_ICALL                                         $6      
          9        JMP_SET                                          ~7      $6, ->11
         10        QM_ASSIGN                                        ~7      0
         11        CONCAT                                           ~8      ~7, '%0A'
         12        ECHO                                                     ~8
   11    13        INIT_FCALL                                               'preg_filter'
         14        SEND_VAL                                                 '%2F%5E%5CD%2A%28%5Cd%7B2%2C4%7D%29.%2A%24%2F'
         15        SEND_VAL                                                 '%241'
         16        POST_INC                                         ~9      !1
         17        FETCH_DIM_R                                      ~10     !0, ~9
         18        SEND_VAL                                                 ~10
         19        DO_ICALL                                         $11     
         20        JMP_SET                                          ~12     $11, ->22
         21        QM_ASSIGN                                        ~12     0
         22        CONCAT                                           ~13     ~12, '%0A'
         23        ECHO                                                     ~13
   12    24        INIT_FCALL                                               'preg_filter'
         25        SEND_VAL                                                 '%2F%5E%5CD%2A%28%5Cd%7B2%2C4%7D%29.%2A%24%2F'
         26        SEND_VAL                                                 '%241'
         27        POST_INC                                         ~14     !1
         28        FETCH_DIM_R                                      ~15     !0, ~14
         29        SEND_VAL                                                 ~15
         30        DO_ICALL                                         $16     
         31        JMP_SET                                          ~17     $16, ->33
         32        QM_ASSIGN                                        ~17     0
         33        CONCAT                                           ~18     ~17, '%0A'
         34        ECHO                                                     ~18
   13    35        INIT_FCALL                                               'preg_filter'
         36        SEND_VAL                                                 '%2F%5E%5CD%2A%28%5Cd%7B2%2C4%7D%29.%2A%24%2F'
         37        SEND_VAL                                                 '%241'
         38        POST_INC                                         ~19     !1
         39        FETCH_DIM_R                                      ~20     !0, ~19
         40        SEND_VAL                                                 ~20
         41        DO_ICALL                                         $21     
         42        JMP_SET                                          ~22     $21, ->44
         43        QM_ASSIGN                                        ~22     0
         44        CONCAT                                           ~23     ~22, '%0A'
         45        ECHO                                                     ~23
   14    46        INIT_FCALL                                               'preg_filter'
         47        SEND_VAL                                                 '%2F%5E%5CD%2A%28%5Cd%7B2%2C4%7D%29.%2A%24%2F'
         48        SEND_VAL                                                 '%241'
         49        POST_INC                                         ~24     !1
         50        FETCH_DIM_R                                      ~25     !0, ~24
         51        SEND_VAL                                                 ~25
         52        DO_ICALL                                         $26     
         53        JMP_SET                                          ~27     $26, ->55
         54        QM_ASSIGN                                        ~27     0
         55        CONCAT                                           ~28     ~27, '%0A'
         56        ECHO                                                     ~28
         57      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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148.31 ms | 1400 KiB | 15 Q