<?php
//código com o problema
function &olaMundoRef(){
return 'Ola mundo';
}
//código sem problema
function &olaMundo(){
$x = 'Ola mundo';
return $x;
}
echo olaMundoRef();
echo olaMundo();
Notice: Only variable references should be returned by reference in /in/IpDcq on line 4
Ola mundoOla mundo
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
Notice: Only variable references should be returned by reference in /in/IpDcq on line 4
Ola mundoOla mundo