Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves. 

A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external 
resources such as databases, etc. If the script requires a 
database to demonstrate the issue, please make sure it creates 
all necessary tables, stored procedures etc.

Please avoid embedding huge scripts into the report.

Works for me. https://3v4l.org/lKNqU

Sorry requinix@php.net, this was my first bug report. Here's the code;


<?php
class Foo {
    protected $emailLog;

    public function initialize() {
        $this->emailLog = new ArrayObject;
    }

    public function summary() {
        return count($this->emailLog) === 0 
            ? ''
            : count($this->emailLog);
    }
}

$log = new Foo;
$log->initialize();
$log->summary();
?>

That works too. https://3v4l.org/OZQGr

Strange. I've use empty instead and works. Gonna close it, and if it show up again, I report it. Thanks!

Close due impracticable.