<?php
interface Counter
{
/** @return self */
public function count();
/** @return int */
public function getCount();
}
class FluentCounter implements Counter
{
private $count = 0;
public function count()
{
$this->count += 1;
return $this;
}
public function getCount()
{
return $this->count;
}
}
class EchoingCounter implements Counter
{
private $counter;
public function __construct(Counter $counter)
{
$this->counter = $counter;
}
public function count()
{
echo __METHOD__ . "\n";
return $this->counter->count();
}
public function getCount()
{
echo __METHOD__ . "\n";
return $this->counter->getCount();
}
}
$counter = new EchoingCounter(new FluentCounter());
$counter = $counter->count()->count()->count()->count();
echo $counter->getCount();
- Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- EchoingCounter::count
4
- Output for 4.4.2 - 4.4.9
- Parse error: syntax error, unexpected T_STRING in /in/q1ha8 on line 2
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
- Parse error: parse error, unexpected T_STRING in /in/q1ha8 on line 2
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/q1ha8 on line 2
Process exited with code 255.
preferences:
300.75 ms | 401 KiB | 456 Q