<?php
class Example
{
public function match(callable $cb)
{
echo $cb();
}
}
class Callee
{
public function yo()
{
return "If I show up, I'm allowed to do this!";
}
}
$ex = new Example();
$example->match(['Callee', 'yo']);
Warning: Undefined variable $example in /in/V3RqK on line 20
Fatal error: Uncaught Error: Call to a member function match() on null in /in/V3RqK:20
Stack trace:
#0 {main}
thrown in /in/V3RqK on line 20
Process exited with code 255.
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Warning: Undefined variable $example in /in/V3RqK on line 20
Fatal error: Uncaught Error: Call to a member function match() on null in /in/V3RqK:20
Stack trace:
#0 {main}
thrown in /in/V3RqK on line 20
Process exited with code 255.
Notice: Undefined variable: example in /in/V3RqK on line 20
Fatal error: Uncaught Error: Call to a member function match() on null in /in/V3RqK:20
Stack trace:
#0 {main}
thrown in /in/V3RqK on line 20
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught Error: Call to a member function match() on null in /in/V3RqK:20
Stack trace:
#0 {main}
thrown in /in/V3RqK on line 20
Process exited with code 255.
Output for 7.0.0 - 7.0.4
Notice: Undefined variable: example in /in/V3RqK on line 20
Fatal error: Uncaught Error: Call to a member function match() on unknown in /in/V3RqK:20
Stack trace:
#0 {main}
thrown in /in/V3RqK on line 20
Process exited with code 255.
Output for 5.6.8 - 5.6.28
Notice: Undefined variable: example in /in/V3RqK on line 20
Fatal error: Call to a member function match() on null in /in/V3RqK on line 20
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35
Notice: Undefined variable: example in /in/V3RqK on line 20
Fatal error: Call to a member function match() on a non-object in /in/V3RqK on line 20
Process exited with code 255.