Today while reading Writing better Regular Expressions in PHP I learned that meta characters are treated as literals in character classes. So '/^(\d[.]\d)$/' will match '1.2' but not '1x2'. Who knew!?
Tag Archives: character
String validation in PHP
Learn about character type checking and filter_var. I bumped into these while reading Writing better Regular Expressions in PHP.
Fixing character encoding issue in ViewVC
So I was having an issue with ViewVC wherein UTF-8 content (a copyright symbol) was being garbled in the web browser.
I chased a number of red herrings (Content-Type headers, http-equiv, XHTML vs HTML5) but eventually found the culprit in the viewvc.conf settings.
I needed to change the ‘detect_encoding’ setting from ‘1’ to ‘0’. Once that was done my content was presented correctly:
## detect_encoding: Should we attempt to detect versioned file ## character encodings? [Requires 'chardet' module, and is currently ## used only by the syntax coloration logic -- if enabled -- for the ## 'markup' and 'annotate' views; see 'enable_syntax_coloration'.] ## # 2019-06-02 jj5 - OLD: this was bollocksing things up... #detect_encoding = 1 # 2019-06-02 jj5 - NEW: so I changed it... detect_encoding = 0 # 2019-06-02 jj5 - END
Multilingual capitalisation regular expression (regex)
Found a cool regex over here that would find capital letters across languages. Couldn’t get it to work in JavaScript though…
^([\p{Lu}\p{Lt}]\p{Ll}+)+$
jQuery htmlspecialchars equivalent to encode text as HTML
Reply
Found this which said:
$('<div/>').text('This is fun & stuff').html();
PHP htmlentities encoding
I needed to know my options for htmlentities character encoding support today. The PHP documentation had everything I needed to know. I ended up adding these constants to my code:
const UTF8_ENCODING = 'UTF-8'; const ASCII_ENCODING = 'ISO-8859-1';
MySQL Connection Character Sets and Collations
Reading about MySQL Connection Character Sets and Collations…
XML on the Web Has Failed
Here’s an interesting article from way back in 2004: XML on the Web Has Failed.
Handling character encodings in HTML and CSS
On my list of things to do is read the document Handling character encodings in HTML and CSS from the W3C. For some reason I can’t quite bring myself to concentrate on it right now.