PHP


/**
* Get the position in a text inbetween two complete words just below
* a limit if the text is longer than the limit.
*
* @param unknown_type $text
* @param unknown_type $limit
* @return unknown
*/
function _get_complete_word($text, $limit = 5000) {

$text_lenght = strlen($text);

if ($text_lenght <= $limit) {

return $text_lenght;

}else{

preg_match_all("/ /ui", $text, $matches, PREG_OFFSET_CAPTURE);

foreach ($matches[0] as $key => $value) {
if ($value[1] >= $limit) {
return ($key == 0 ?

This is how you can extract a domain out of URL without the subdomains. The parse_url() function gives the domain with the subdomain and this function just take the last two pieces and return it put together.

PHP Date and some classic code applications

First day of week

$first_day_of_week = mktime(0, 0, 0, date('m'), date('d')-date('N')+1, date('Y'));
echo date('Y-m-d H:i:s', $first_day_of_week);
//Depending on server settings and location date('N') can be changed to date('w') depending on Monday or Sunday is considered to be the first day of week.

This expression can be used when you want to validate a pattern containing houres and minutes or just hours or just minutes. The time pattern to accept is:

This is how you can filter a text and load it into an array. This function converts all words into lower-case, removes all HTML tags, junk characters and numbers, explode it in to an array and finally removes duplicates.

This is how you can filter strings and just allow a-z and A-Z and /or numbers.

Read more about ctype_alnum() or ctype_alpha()

This is how you can escape slashes in an URL with an backslash, before doing a preg_replace on the path part of the URL. I have used this before a validation of URL:s containing the swedish characters åäö.

Code for calculation weight for a word in its context on a page.