Skip to Main Content
Secure Development for Mobile Apps
book

Secure Development for Mobile Apps

by J. D. Glaser
October 2014
Intermediate to advanced content levelIntermediate to advanced
472 pages
10h 44m
English
Auerbach Publications
Content preview from Secure Development for Mobile Apps
87
PHP seCurIty tools overvIew
FILTER_SANITIZE_STRING: Removes invalid data from string.
$untrusted = '<script>alert('Attack');</script>';
$safe = filter_var($untrusted, FILTER_SANITIZE_STRING);
e script tags are removed, and output is: alert(‘Attack’)
FILTER_SANITIZE_ENCODED: Encodes dangerous script tags in string.
$untrusted = '<script>alert('Attack');</script>';
$safe = filter_var($untrusted, FILTER_SANITIZE_ENCODED);
Encodes all punctuation, spaces, and angle brackets into HTML entities.
Output is:
%3Cscript%3Ealert%28%27ATTACK%27%29%3B%3C%2Fscript%3E
FILTER_SANITIZE_SPECIAL_CHARS: HTML encodes special characters like
quotes, ampersands, and angle brackets.
$untrusted = '<script>alert('Attack');</script>';
$encoded = filter_var($untrusted, FILTER_SANITIZE_SPECIAL_CHARS); ...
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,
and much more.
Start your free trial

You might also like

Developing with Web Standards

Developing with Web Standards

John Allsopp
Mobile Cloud Computing

Mobile Cloud Computing

Dijiang Huang, Huijun Wu

Publisher Resources

ISBN: 9781482209037