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<?php $keys = array('name', 'type', 'tmp_name', 'error', 'size'); $fileArr = array('name'); var_dump(empty( array_diff( array_keys($fileArr), $keys) ));
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/vkPvK
function name:  (null)
number of ops:  14
compiled vars:  !0 = $keys, !1 = $fileArr
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    2     0  E >   ASSIGN                                                   !0, <array>
    3     1        ASSIGN                                                   !1, <array>
    4     2        INIT_FCALL                                               'var_dump'
          3        INIT_FCALL                                               'array_diff'
          4        INIT_FCALL                                               'array_keys'
          5        SEND_VAR                                                 !1
          6        DO_ICALL                                         $4      
          7        SEND_VAR                                                 $4
          8        SEND_VAR                                                 !0
          9        DO_ICALL                                         $5      
         10        BOOL_NOT                                         ~6      $5
         11        SEND_VAL                                                 ~6
         12        DO_ICALL                                                 
         13      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 8.0.0


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