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<?php $r[] = array( "minID"=> "16"); var_dump($r); echo '<br /><br />'; echo $r[0]['minID']; echo '<br /><br />'; echo empty($r);
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/8Gq8o
function name:  (null)
number of ops:  13
compiled vars:  !0 = $r
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   ASSIGN_DIM                                               !0
         1        OP_DATA                                                  <array>
   3     2        INIT_FCALL                                               'var_dump'
         3        SEND_VAR                                                 !0
         4        DO_ICALL                                                 
   4     5        ECHO                                                     '%3Cbr+%2F%3E%3Cbr+%2F%3E'
   5     6        FETCH_DIM_R                                      $3      !0, 0
         7        FETCH_DIM_R                                      $4      $3, 'minID'
         8        ECHO                                                     $4
   6     9        ECHO                                                     '%3Cbr+%2F%3E%3Cbr+%2F%3E'
   7    10        ISSET_ISEMPTY_VAR                           293601280  ~5      !0
        11        ECHO                                                     ~5
        12      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.3.0