float round ( float $val [, int $precision = 0 [, int $mode = PHP_ROUND_HALF_UP ]] )
echo round(3.4); // 3
echo round(3.5); // 4… 13 more words
This can be a little confusing.
The actual parameters for mysql_real_escape_string are not just $unescaped_string, but also $link_identifier. When the latter is left empty, it defaults to the last used connection opened by mysql_connect, so most of the time it’s unnecessary to specify. 117 more words
PHP is a server-side scripting language designed for web development but also used as a general-purpose programming language. As of January 2013, PHP was installed on more than 240 million websites (39% of those sampled) and 2.1 million web servers. 197 more words
Creating a good software involves several skills – analytical thinking, algorithms, design, coding etc and last but important – debugging. Debugging is an art of tracing and fixing the bugs, mastery of which saves a lot of time of the developer. 1,769 more words
To guard against UI-Redressing, Click Jacking or xss you can use the CSP http header which is compatible with newer browsers. To block iframing of your site in most browsers you can use x-frame-options. 182 more words