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<?php $user = (object) [ 'roles' => [ 'student', //remove 'grade_1_student', 'grade_4_student', 'grade_some_student', //remove 'arbitrarty-0', //remove 'grade_9_student', ], ]; function getStudentGradesFromRoles(array $roles) { return array_values(preg_filter('/^(grade)_(\d)_student$/', '$1-$2', $roles) ?: []); } $grades = getStudentGradesFromRoles((array) $user->roles); var_dump($grades);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JKpi5
function name:  (null)
number of ops:  12
compiled vars:  !0 = $user, !1 = $grades
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    6     0  E >   CAST                                          8  ~2      <array>
    4     1        ASSIGN                                                   !0, ~2
   19     2        INIT_FCALL                                               'getstudentgradesfromroles'
          3        FETCH_OBJ_R                                      ~4      !0, 'roles'
          4        CAST                                          7  ~5      ~4
          5        SEND_VAL                                                 ~5
          6        DO_FCALL                                      0  $6      
          7        ASSIGN                                                   !1, $6
   20     8        INIT_FCALL                                               'var_dump'
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                                 
         11      > RETURN                                                   1

Function getstudentgradesfromroles:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/JKpi5
function name:  getStudentGradesFromRoles
number of ops:  13
compiled vars:  !0 = $roles
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   15     0  E >   RECV                                             !0      
   16     1        INIT_FCALL                                               'array_values'
          2        INIT_FCALL                                               'preg_filter'
          3        SEND_VAL                                                 '%2F%5E%28grade%29_%28%5Cd%29_student%24%2F'
          4        SEND_VAL                                                 '%241-%242'
          5        SEND_VAR                                                 !0
          6        DO_ICALL                                         $1      
          7        JMP_SET                                          ~2      $1, ->9
          8        QM_ASSIGN                                        ~2      <array>
          9        SEND_VAL                                                 ~2
         10        DO_ICALL                                         $3      
         11      > RETURN                                                   $3
   17    12*     > RETURN                                                   null

End of function getstudentgradesfromroles

Generated using Vulcan Logic Dumper, using php 8.0.0


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134.07 ms | 1002 KiB | 17 Q