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<?php $files1 = array('AAA', 'BBB', 'CcC'); function bbq( &$path ) { $path = strtolower($path); return true; } $files2 = array_filter($files1, 'bbq'); var_dump($files1, $files2);
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iTqYI
function name:  (null)
number of ops:  11
compiled vars:  !0 = $files1, !1 = $files2
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                       !0, <array>
   10     1        INIT_FCALL                                                   'array_filter'
          2        SEND_VAR                                                     !0
          3        SEND_VAL                                                     'bbq'
          4        DO_ICALL                                             $3      
          5        ASSIGN                                                       !1, $3
   12     6        INIT_FCALL                                                   'var_dump'
          7        SEND_VAR                                                     !0
          8        SEND_VAR                                                     !1
          9        DO_ICALL                                                     
         10      > RETURN                                                       1

Function bbq:
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/iTqYI
function name:  bbq
number of ops:  7
compiled vars:  !0 = $path
line      #* E I O op                               fetch          ext  return  operands
-----------------------------------------------------------------------------------------
    5     0  E >   RECV                                                 !0      
    6     1        INIT_FCALL                                                   'strtolower'
          2        SEND_VAR                                                     !0
          3        DO_ICALL                                             $1      
          4        ASSIGN                                                       !0, $1
    7     5      > RETURN                                                       <true>
    8     6*     > RETURN                                                       null

End of function bbq

Generated using Vulcan Logic Dumper, using php 8.5.0


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