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<?php $arr = array(0,null,3,null); function is_not_null ($var) { return !is_null($var); } $filtered = array_filter($arr, 'is_not_null'); print_r($filtered);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CKrYO
function name:  (null)
number of ops:  10
compiled vars:  !0 = $arr, !1 = $filtered
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
    6     1        INIT_FCALL                                                   'array_filter'
          2        SEND_VAR                                                     !0
          3        SEND_VAL                                                     'is_not_null'
          4        DO_ICALL                                             $3      
          5        ASSIGN                                                       !1, $3
    8     6        INIT_FCALL                                                   'print_r'
          7        SEND_VAR                                                     !1
          8        DO_ICALL                                                     
          9      > RETURN                                                       1

Function is_not_null:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/CKrYO
function name:  is_not_null
number of ops:  5
compiled vars:  !0 = $var
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   RECV                                                 !0      
          1        TYPE_CHECK                                        2  ~1      !0
          2        BOOL_NOT                                             ~2      ~1
          3      > RETURN                                                       ~2
          4*     > RETURN                                                       null

End of function is_not_null

Generated using Vulcan Logic Dumper, using php 8.5.0


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