<?php
var_dump(preg_match(
'^Client returns an error \(number 10061\): No connection could be made because the target machine actively refused it\.\n while trying to join tcp:\/\/127\.0\.0\.1:655355\.$',
'Client returns an error (number 10061): No connection could be made because the target machine actively refused it.
while trying to join tcp://127.0.0.1:655355.'
));
Warning: preg_match(): No ending delimiter '^' found in /in/jM2j4 on line 3
bool(false)
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: preg_match(): No ending delimiter '^' found in /in/jM2j4 on line 3
bool(false)