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Groups > comp.lang.php > #18657

set_error_handler(): duplicate error

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<?php
//error_reporting(0);
set_error_handler(
     static function (int $severity, string $message, string $file, int 
$line): void {
         throw new InternalErrorException($message, 0, $severity, $file, 
$line);
     }
);

xxx();

Output:

Fatal error: Uncaught Error: Call to undefined function xxx() in 
/tmp/tmp.Ie1UVhkWcT/test.php on line 9

Error: Call to undefined function xxx() in /tmp/tmp.Ie1UVhkWcT/test.php 
on line 9

Call Stack:
     0.0001     392928   1. {main}() /tmp/tmp.Ie1UVhkWcT/test.php:0

Why error message showing is duplicate?
Furthermore, if uncommenting the error_reporting(0) instruction does not 
show any errors.
is there a good compromise?

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Thread

set_error_handler(): duplicate error alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-06-10 11:04 +0200
  Re: set_error_handler(): duplicate error Ii Ii <ya12983@mail.com> - 2021-06-16 02:39 -0700
  Re: set_error_handler(): duplicate error Arno Welzel <usenet@arnowelzel.de> - 2021-06-16 13:48 +0200
    Re: set_error_handler(): duplicate error alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-06-18 14:53 +0200
      Re: set_error_handler(): duplicate error Jerry Stuckle <jstucklex@attglobal.net> - 2021-06-18 22:00 -0400
        Re: set_error_handler(): duplicate error alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-06-19 16:41 +0200
          Re: set_error_handler(): duplicate error Jerry Stuckle <jstucklex@attglobal.net> - 2021-06-19 19:21 -0400
            Re: set_error_handler(): duplicate error Arno Welzel <usenet@arnowelzel.de> - 2021-06-20 13:10 +0200
        Re: set_error_handler(): duplicate error Arno Welzel <usenet@arnowelzel.de> - 2021-06-20 13:02 +0200
      Re: set_error_handler(): duplicate error Arno Welzel <usenet@arnowelzel.de> - 2021-06-20 12:51 +0200
        Re: set_error_handler(): duplicate error alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-06-21 17:06 +0200
          Re: set_error_handler(): duplicate error Arno Welzel <usenet@arnowelzel.de> - 2021-06-21 19:43 +0200
            Re: set_error_handler(): duplicate error alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-06-22 16:10 +0200
              Re: set_error_handler(): duplicate error "J.O. Aho" <user@example.net> - 2021-06-22 18:13 +0200
                Re: set_error_handler(): duplicate error alex <1j9448a02@lnx159sneakemail.com.invalid> - 2021-06-23 13:35 +0200
              Re: set_error_handler(): duplicate error Arno Welzel <usenet@arnowelzel.de> - 2021-06-23 10:24 +0200

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