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<?php ini_set('html_errors', 'ON-ISH'); var_dump($x=ini_get('html_errors'), filter_var($x, FILTER_VALIDATE_BOOLEAN)); trigger_error('ON-ISH'); ini_set('html_errors', 'ON'); var_dump($x=ini_get('html_errors'), filter_var($x, FILTER_VALIDATE_BOOLEAN)); trigger_error('ON');
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/aYsiU
function name:  (null)
number of ops:  39
compiled vars:  !0 = $x
line      #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
    3     0  E >   INIT_FCALL                                               'ini_set'
          1        SEND_VAL                                                 'html_errors'
          2        SEND_VAL                                                 'ON-ISH'
          3        DO_ICALL                                                 
    4     4        INIT_FCALL                                               'var_dump'
          5        INIT_FCALL                                               'ini_get'
          6        SEND_VAL                                                 'html_errors'
          7        DO_ICALL                                         $2      
          8        ASSIGN                                           ~3      !0, $2
          9        SEND_VAL                                                 ~3
         10        INIT_FCALL                                               'filter_var'
         11        SEND_VAR                                                 !0
         12        SEND_VAL                                                 258
         13        DO_ICALL                                         $4      
         14        SEND_VAR                                                 $4
         15        DO_ICALL                                                 
    5    16        INIT_FCALL                                               'trigger_error'
         17        SEND_VAL                                                 'ON-ISH'
         18        DO_ICALL                                                 
    6    19        INIT_FCALL                                               'ini_set'
         20        SEND_VAL                                                 'html_errors'
         21        SEND_VAL                                                 'ON'
         22        DO_ICALL                                                 
    7    23        INIT_FCALL                                               'var_dump'
         24        INIT_FCALL                                               'ini_get'
         25        SEND_VAL                                                 'html_errors'
         26        DO_ICALL                                         $8      
         27        ASSIGN                                           ~9      !0, $8
         28        SEND_VAL                                                 ~9
         29        INIT_FCALL                                               'filter_var'
         30        SEND_VAR                                                 !0
         31        SEND_VAL                                                 258
         32        DO_ICALL                                         $10     
         33        SEND_VAR                                                 $10
         34        DO_ICALL                                                 
    8    35        INIT_FCALL                                               'trigger_error'
         36        SEND_VAL                                                 'ON'
         37        DO_ICALL                                                 
         38      > RETURN                                                   1

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