<?php
	class mentions {
		private $m_names = array();
		private $m_denied_chars = array(
			"@",
			"#",
			"?",
			"¿"
		);
		private $m_link = "http://example.com/";	// + name of the username, link or whatever
		
		/*
		 * this class can also be used for specific links
		 * start editing from here
		 * */
		 
		public function add_name ($name) {
			array_push($this->m_names, $name);
		}
		
		public function process_text ($text_txt) {
			$expl_text = explode(" ", $text_txt);
			
			/*
			 * a character will be ignores which can be specified next this comment
			 * :)
			 * */
			
			$sp_sign = "@";	// this is what you can change freely...
			
			for ($i = 0; $i < count($expl_text); ++$i) {
				$spec_w = $expl_text[$i];
				$print_link = false;
				$name_link = "";
				if ($spec_w[0] == $sp_sign) {	// then can be a mention...
					$name = "";
					$break_b = false;
					for ($x = 1; $x < strlen($spec_w); ++$x) {
						if ($spec_w[$x] == '.' || $spec_w[$x] == ",") {
							if (in_array($name, $this->m_names)) {
								$print_link = true;
								$name_link = $name;
								break;
							}
						}
						if (in_array($spec_w[$x], $this->m_denied_chars)) {
							$break_b = true;
							break;
						}
						$name .= $spec_w[$x];
					}
					if ($break_b == true) {
						$print_link = false;
						break;
					} else {
						if (in_array($name, $this->m_names)) {
							$print_link = true;
							$name_link = $name;
						}
					}
				}
				if ($print_link == true) {
					print "<a href=\"".$this->m_link."".$name_link."\">".$spec_w."</a>";
					if ($i < count($expl_text)) print " ";
				} else {
					print $spec_w;
					if ($i < count($expl_text)) print " ";
				}
			}
		}
	}
?>