PHP-如何将长数组（句子）拆分为较小的数组（关键字）以通过foreach循环

Question

我使用如下代码：

$list = array(
"This" => "9",
"great" => "10",
"God Father" => "11",
"Tony Montana" => "12",
"Ronaldo" => "13",
"Al Pacino" => "14",
"Humans" => "15",
"Play" => "16"
);

$post = Array ( [title] => "This is a test - That game is awesome (Cristiano Ronaldo is a great Soccer Player).",
                           "This is a not a test - That game is OK (Maradonal was a great Soccer Player)."
                                );

foreach ($post as $keyword) {
    foreach ($list as $word=>$num) {
        $sim_chars = similar_text($keyword, $word);
        if ($sim_chars/strlen($keyword) > .8 || $sim_chars/strlen($word) > .8) {
            $all_key_values[] = $num;
            $all_keys[] = $word;
        }
        elseif (stripos($keyword, $word) !== false || strpos($word, $keyword) !== false) {
            $sll_key_values[] = $num;
            $all_keys[] = $word;
        }
    }        
}

该代码可以很好地传递$post = array ('Humans', 'Tony Montana', 'Tech', 'Creative');等$post = array ('Humans', 'Tony Montana', 'Tech', 'Creative'); 使关键字与另一个数组中的另一个关键字列表匹配。 但是我想传递一个带有$post类的结构的数组（在代码中），以从帖子标题中找到关键字。 因此，我的问题是我该如何将$post值（即This is a test - That game is awesome (Cristiano Ronaldo is a great Soccer Player). ）分割成长度小于2个字符的小字（即This ， test ， That ， game ， awesome ， Cristiano ， Ronaldo ， great ， Soccer和Player ），将通过之前去除特殊字符$post进入foreach循环。 非常感谢您在这个问题上的帮助。

Answer 1

尝试：

function funFun($pst, $lst, $spc){
  $sc = '/\\'.implode('|\\', $spc).'/';
  foreach($pst as $v){
    $pr[] = preg_replace($sc, '', $v);
  }
  $ps = preg_split('/\s+/', $pr);
  foreach($ps as $v){
    $a[] = $lst[$v];
  }
  return $a;
}
$resArray = funFun($post, $list, array(',', '.', '(', ')', '-'));

Answer 2

<?php

$str="This is a test - That game is awesome (Cristiano Ronaldo is a great Soccer Player)";

//clean string:

$str=preg_replace("/[^A-Za-z0-9 ]/", '', $str); 

    //first explode it
    $e=explode(' ',$str);

//loop to remove short words
    $out=array();
    foreach ($e as $a){

        if(strlen($a)>2){
        $out[]=$a;  
        }
    }

print_r($out);

现场演示： http : //codepad.viper-7.com/CEvYdx

Array ( [0] => This [1] => test [2] => That [3] => game [4] => awesome [5] => Cristiano [6] => Ronaldo [7] => great [8] => Soccer [9] => Player )