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<?php $foo = [ 0 => ['test'], 1 => null ]; $bar = array_filter($foo, 'is_null'); var_dump(array_diff($foo, $bar));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/uojqP
function name:  (null)
number of ops:  14
compiled vars:  !0 = $foo, !1 = $bar
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   ASSIGN                                                   !0, <array>
    8     1        INIT_FCALL                                               'array_filter'
          2        SEND_VAR                                                 !0
          3        SEND_VAL                                                 'is_null'
          4        DO_ICALL                                         $3      
          5        ASSIGN                                                   !1, $3
    9     6        INIT_FCALL                                               'var_dump'
          7        INIT_FCALL                                               'array_diff'
          8        SEND_VAR                                                 !0
          9        SEND_VAR                                                 !1
         10        DO_ICALL                                         $5      
         11        SEND_VAR                                                 $5
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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