<td class="image">
    <a href="/title/tt0948470/" title="The Amazing Spider-Man (2012)"><img src="http://ia.media-imdb.com/images/M/MV5BMjMyOTM4MDMxNV5BMl5BanBnXkFtZTcwNjIyNzExOA@@._V1._SX54_CR0,0,54,74_.jpg" height="74" width="54" alt="The Amazing Spider-Man (2012)" title="The Amazing Spider-Man (2012)"></a>
  </td>

<?php
$str='<td class="image">
    <a href="/title/tt0948470/" title="The Amazing Spider-Man (2012)"><img src="http://ia.media-imdb.com/images/M/MV5BMjMyOTM4MDMxNV5BMl5BanBnXkFtZTcwNjIyNzExOA@@._V1._SX54_CR0,0,54,74_.jpg" height="74" width="54" alt="The Amazing Spider-Man (2012)" title="The Amazing Spider-Man (2012)"></a>
    <a href="/title/tt0948470/" title="The Amazing Spider-Man (2012)">
  </td>';
$patten = '/title="(.*)"/Uis';
if (preg_match ( $patten, $str, $array )) {
print_r($array);
}
echo "<br>";
$patten1 = '/<a href=".*" title="(.*)">/Uis';
if (preg_match_all ( $patten1, $str, $array1 )) {
print_r($array1[1]);
}
?>

------解决方案--------------------

PHP code

$string='<td class="image"><a href="/title/tt0948470/" title="The Amazing Spider-Man (2012)1"><img src="http://ia.media-imdb.com/images/M/MV5BMjMyOTM4MDMxNV5BMl5BanBnXkFtZTcwNjIyNzExOA@@._V1._SX54_CR0,0,54,74_.jpg" height="74" width="54" alt="The Amazing Spider-Man (2012)" title="The Amazing Spider-Man (2012)3"></a><a href="/title/tt0948470/" title="The Amazing Spider-Man (2012)2"></td>'; 
    if (preg_match_all ( '/(?<=\s)title="(.*)"/Ui', $string, $arr )) {
        var_dump($arr);
    }
    /*
        <br>array(2) {
  [0]=>
  array(3) {
    [0]=>
    string(38) "title="The Amazing Spider-Man (2012)1""
    [1]=>
    string(38) "title="The Amazing Spider-Man (2012)3""
    [2]=>
    string(38) "title="The Amazing Spider-Man (2012)2""
  }
  [1]=>
  array(3) {
    [0]=>
    string(30) "The Amazing Spider-Man (2012)1"
    [1]=>
    string(30) "The Amazing Spider-Man (2012)3"
    [2]=>
    string(30) "The Amazing Spider-Man (2012)2"
  }
}

    */