Sentence Extractor

gistfile1.txt

<?php
		$text = trim(fgets(STDIN));
		$text = urldecode($text);
		$word = trim(fgets(STDIN));
		$word = urldecode($word);

		$text = preg_replace('/[a-zA-Z\s],[.?!]/', '', $text);
		$text = iconv('UTF-8', 'ISO-8859-1//IGNORE', $text);
		$text = preg_split('/([.?!])/', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
		$sentences = array();
		for ($i=0, $n=count($text)-1; $i<$n; $i+=2) {
				$sentences[] = $text[$i].$text[$i+1];
		}
		if ($text[$n] != '') {
				$sentences[] = $text[$n];
		}
        $word = '/\s+'.$word .'\s*.*[.?!]/';
		$result = array();
		for($i=0;$i<count($sentences);$i++) {
		    if ((substr($sentences[$i], -1) == '.')||(substr($sentences[$i], -1) == '!')||(substr($sentences[$i], -1) == '?')) { 
    			if (preg_match($word, $sentences[$i])) {
    				$result[] = trim($sentences[$i]);
						}
    			
		} 
		    }
		
		foreach ($result as $value) {
			echo $value ."\n";
		}
?>