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<?php trigger_error("visible error"); ini_set("display_errors",0); trigger_error("hidden error"); ini_set("display_errors",1); trigger_error("another visible error");
based on monra
Finding entry points
Branch analysis from position: 0
1 jumps found. (Code = 62) Position 1 = -2
filename:       /in/87gIl
function name:  (null)
number of ops:  18
compiled vars:  none
line     #* E I O op                           fetch          ext  return  operands
-------------------------------------------------------------------------------------
   2     0  E >   INIT_FCALL                                               'trigger_error'
         1        SEND_VAL                                                 'visible+error'
         2        DO_ICALL                                                 
   4     3        INIT_FCALL                                               'ini_set'
         4        SEND_VAL                                                 'display_errors'
         5        SEND_VAL                                                 0
         6        DO_ICALL                                                 
   5     7        INIT_FCALL                                               'trigger_error'
         8        SEND_VAL                                                 'hidden+error'
         9        DO_ICALL                                                 
   7    10        INIT_FCALL                                               'ini_set'
        11        SEND_VAL                                                 'display_errors'
        12        SEND_VAL                                                 1
        13        DO_ICALL                                                 
   8    14        INIT_FCALL                                               'trigger_error'
        15        SEND_VAL                                                 'another+visible+error'
        16        DO_ICALL                                                 
        17      > RETURN                                                   1

Generated using Vulcan Logic Dumper, using php 7.4.0