The expected and actual results above are swapped, but otherwise I can reproduce this at least for the first page request.

I just ran into this as well and tracked it down to opcache running in Apache.  Yes, it only happens once, while the script is compiling the first time before being cached.

I assume it has something to do with opcache explicitly disabling the user_error_handler while compiling the script in opcache_compile_file.

Has this been fixed in PHP 7.4?

I was expecting to catch deprecations in my test-suite, and as you can see here, a deprecation from PHP 7.1 was not caught in my 7.2 environment:

https://3v4l.org/SsL0q

The deprecation can't be caught until 7.4, apparently.

Now, this could be either because the issue has been resolved - or just because this particular method was flagged in documentation as deprecated in 7.1 but wasn't actually triggering a deprecation notice until 7.4.

Any idea which it is?

@rasmus at mindplay dot dk: Only triggers deprecation since 7.4. Was blocked on https://wiki.php.net/rfc/tostring_exceptions.

This is still an issue in PHP 8.0.10.  The first time a deprecation error is raised with opcache enabled, it doesn't trigger custom error handlers.  Subsequent loads of the script, however, do.  https://bugs.php.net/bug.php?id=81442 has an example using a different deprecation case.

Tested this in php 8.2.1 with the code below:


jochem.php
-----------
error_reporting(E_ALL);
ini_set('display_errors', 1);
//header('Content-type: text/plain; charset=windows-1252');
header('Content-type: text/plain; charset=utf-8');


function shutdown()
{
    $error = error_get_last();
    if ($error) {
        echo "\n\n--------------- SHUTDOWN ---------------------\n\n";
        var_dump($error);
        echo "\n--------------- EO: SHUTDOWN ---------------------\n\n";
    }
}

register_shutdown_function('shutdown');

function myErrorHandler($errno, $errstr, $errfile, $errline)
{
    echo "\n\n--------------- ERROR ---------------------\n\n";
    var_dump(error_reporting());
    echo "\n" . 'errno = ';
    print_r($errno);
    echo "\n" . 'errstr = ';
    print_r($errstr);
    echo "\n" . 'errfile = ';
    print_r($errfile);
    echo "\n" . 'errline = ';
    print_r($errline);
    echo "\n--------------- EO: ERROR ---------------------\n\n";

//    die();
    return true;
//    return false;
}


set_error_handler("myErrorHandler");


function exception_handler($exception)
{
    echo "\n\n--------------- EXCEPTION ---------------------\n\n";
    echo "class: ", get_class($exception), "\n";
    echo "message: ", $exception->getMessage(), "\n";
    echo "regel: ", $exception->getLine(), "\n";
    echo "\n--------------- EO: EXCEPTION ---------------------\n\n";
}

set_exception_handler('exception_handler');


require 'jochem2.php';


echo "\nEOF";

-----------

jochem2.php
-----------
<?php
class A {
    final private function iets() {

    }

}


$a2 =new A();

-----------