June 2005
Intermediate to advanced
794 pages
18h 27m
German
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23.4 Passwörter einlesen
Problem
Sie müssen einen String von der Kommandozeile lesen, so dass er beim Eingeben nicht wieder ausgegeben wird, beispielsweise beim Eingeben von Passwörtern.
Lösung
Unter Unix verwenden Sie /bin/stty, um das Echo von eingetippten Zeichen ein- oder auszuschalten:
// Das Echo abschalten. `/bin/stty -echo`; // Passwort lesen. $password = readline(); // Das Echo wieder einschalten. `/bin/stty echo`;
Unter Windows verwenden Sie w32api_register_function( ), um _getch( ) von msvcrt.dll zu importieren:
// Die W32api-Erweiterung laden und _getch() registrieren. dl('php_w32api.dll'); w32api_register_function('msvcrt.dll','_getch','int'); while(true) { // Ein Zeichen von der Tastatur holen. $c = chr(_getch()); if ( "\r" == $c || "\n" ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.