mirror of
https://github.com/wbbaddons/Tims-Chat.git
synced 2024-12-23 21:50:09 +00:00
116 lines
3.1 KiB
PHP
116 lines
3.1 KiB
PHP
<?php
|
|
namespace wcf\util;
|
|
|
|
/**
|
|
* Chat utilities
|
|
*
|
|
* @author Tim Düsterhus
|
|
* @copyright 2010-2011 Tim Düsterhus
|
|
* @license Creative Commons Attribution-NonCommercial-ShareAlike <http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode>
|
|
* @package timwolla.wcf.chat
|
|
* @subpackage util
|
|
*/
|
|
class ChatUtil {
|
|
/**
|
|
* Matches a time-interval with modifiers.
|
|
* Each part may be optionally separated by a comma
|
|
*
|
|
* @see \wcf\util\ChatUtil::timeModifier()
|
|
*/
|
|
const TIME_MODIFIER_REGEX = '((?:[0-9]+[h|d|w|m|y|H|D|W|M|Y]?,?)+)';
|
|
|
|
/**
|
|
* Creates a gradient out of two colors represented by an integer.
|
|
* The first byte is red, the second byte is green, the third one is blue.
|
|
* The numbers can be easily expressed in hexadecimal notation: 0xFF0000 being red.
|
|
*
|
|
* @param string $string
|
|
* @param integer $start
|
|
* @param integer $end
|
|
* @returen string
|
|
*/
|
|
public static function gradient($string, $start, $end) {
|
|
$string = self::str_split($string);
|
|
$r = (int) ((($start >> 16 & 255) - ($end >> 16 & 255)) / (count($string) - 1));
|
|
$g = (int) ((($start >> 8 & 255) - ($end >> 8 & 255)) / (count($string) - 1));
|
|
$b = (int) ((($start & 255) - ($end & 255)) / (count($string) - 1));
|
|
|
|
$result = '';
|
|
for ($i = 0, $max = count($string); $i < $max; $i++) {
|
|
$result .= '<span style="color:rgb('.(($start >> 16 & 255) - $i * $r).','.(($start >> 8 & 255) - $i * $g).','.(($start & 255) - $i * $b).')">'.$string[$i].'</span>';
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Splits a string into smaller chunks.
|
|
* UTF-8 safe version of str_split().
|
|
*
|
|
* @param string $string
|
|
* @param integer $length
|
|
* @return array<string>
|
|
*/
|
|
public static function str_split($string, $length = 1) {
|
|
$result = array();
|
|
for ($i = 0, $max = StringUtil::length($string); $i < $max; $i += $length) {
|
|
$result[] = StringUtil::substring($string, $i, $length);
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Creates an interval out of a string with modifiers.
|
|
* Modifiers may be mixed. Valid modifiers are: _s_econd, _h_our, _d_ay, _w_week, _m_onth, _y_ear
|
|
* '2' -> 2 minutes
|
|
* '2h' -> 2 hours
|
|
* '1y12m2w3d12h' -> 1 year, 12 months, 2 weeks, 3 days, 12 hours
|
|
*
|
|
* @param string $time
|
|
* @return integer
|
|
*/
|
|
public static function timeModifier($time) {
|
|
preg_match_all('!([0-9]+[s|h|d|w|m|y]?)!i', $time, $matches);
|
|
$result = 0;
|
|
foreach ($matches[1] as $time) {
|
|
// 60 seconds a minute
|
|
$multiplier = 60;
|
|
$modifier = substr($time, -1);
|
|
|
|
switch ($modifier) {
|
|
case 'y':
|
|
case 'Y':
|
|
// twelve months a year
|
|
$multiplier *= 12;
|
|
case 'm':
|
|
case 'M':
|
|
// about 4.3 weeks per month
|
|
$multiplier *= 4.34812141;
|
|
case 'w':
|
|
case 'W':
|
|
// seven days a weeks
|
|
$multiplier *= 7;
|
|
case 'd':
|
|
case 'D':
|
|
// 24 hours a day
|
|
$multiplier *= 24;
|
|
case 'h':
|
|
case 'H':
|
|
// 60 minutes an hour
|
|
$multiplier *= 60;
|
|
$time = substr($time, 0, -1);
|
|
break;
|
|
case 's':
|
|
case 'S':
|
|
// 60 seconds per minute
|
|
$multiplier /= 60;
|
|
$time = substr($time, 0, -1);
|
|
}
|
|
|
|
$result += $time * $multiplier;
|
|
}
|
|
|
|
return (int) round($result, 0);
|
|
}
|
|
}
|