[Konstantinos]

Is the player supposed to enter a url? If so, then sscanf should have given a warning for not specifying a length using "s" specifier but it's also wrong because input is integer and not a string as it should have.
sscanf is not needed though:

PHP код:

CMD:setjingle(playerid, params[])
{
    if(!IsRadioMember(playerid)) return SCM(playerid, COLOR_GREY, "You are not a member of RSF.");
    if(isnull(params)) return SendUsageMessage(playerid, "/setjingle [jingle stream url] - Abusing will get you punished!");
    
    //strcat((jingle[0] = EOS, jingle), params, sizeof (jingle));
    PlayAudioStreamForPlayer(playerid, params);
    SendClientMessage(playerid, COLOR_UPDATED, "The jingle URL has successfully been updated!");
    return 1;
} 


if "jingle" is a global string and you need to copy the url a player input to it, uncomment the line. Also "newsjingle" is not used for anything in the command.