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<?php $input = "cheytac406@"; $valid; echo filter_var($input, FILTER_VALIDATE_EMAIL);
Finding entry points
Branch analysis from position: 0
Jump found. Position 1 = -2
filename:       /in/XS7r4
function name:  (null)
number of ops:  7
compiled vars:  !0 = $input, !1 = $valid
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   3     0  E >   ASSIGN                                                   !0, 'cheytac406%40'
   6     1        INIT_FCALL                                               'filter_var'
         2        SEND_VAR                                                 !0
         3        SEND_VAL                                                 274
         4        DO_ICALL                                         $3      
         5        ECHO                                                     $3
         6      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.2.0