[Slice]

Because of a bug in CallLocalFunction, you can't pass empty strings. Therefore, ZCMD passes "\1" instead of an empty string.
A macro is provided to check if the params are empty:

pawn Код:

// WRONG:
is (!strlen(params)) {
    // no params..
}
// CORRECT:
is (isnull(params)) {
    // no params..
}

Alternatively, you could make a macro and add it on the top of all commands:

pawn Код:

#define NULL_PARAMS(); \
    if (!isnull(params)){}else{params[0]='\0';}

// Usage:
CMD:blabla(playerid, params[]) {
    NULL_PARAMS();

    // code..
}

CMD:blabla(playerid, params[]) {
    NULL_PARAMS();

    // code..
}

CMD:blabla(playerid, params[]) {
    NULL_PARAMS();

    // code..
}