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<?php echo implode(', ', array_keys($_SERVER));
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/62RDC
function name:  (null)
number of ops:  10
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   INIT_FCALL                                               'implode'
         1        SEND_VAL                                                 '%2C+'
         2        INIT_FCALL                                               'array_keys'
         3        FETCH_R                      global              $0      '_SERVER'
         4        SEND_VAR                                                 $0
         5        DO_ICALL                                         $1      
         6        SEND_VAR                                                 $1
         7        DO_ICALL                                         $2      
         8        ECHO                                                     $2
         9      > RETURN                                                   1

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