PHP从字符串中获取长度大于3的单词

Question

是否有一个函数可以从一个小长度的字符串中剪切单词，例如，和，you，me，或，所有这些在所有句子中都很常见的短词。我想使用这个函数来用标准填充全文搜索。

在采用该方法之前：

$fulltext = "there is ongoing work on creating a formal PHP specification.";

结果：

$fulltext_method_solution = "there ongoing work creating formal specification."

Answer 1

$fulltext = "there is ongoing work on creating a formal PHP specification.";

$words = array_filter(explode(' ', $fulltext), function($val){
             return strlen($val) > 3; // filter words having length > 3 in array
         });

$fulltext_method_solution = implode(' ', $words); // join words into sentence

Answer 2

试试这个：

 $fulltext = "there is ongoing work on creating a formal PHP specification.";
$result=array();
$array=explode(" ",$fulltext);
foreach($array as $key=>$val){
    if(strlen($val) >3)
        $result[]=$val;
}
$res=implode(" ",$result);

Answer 3

试试这个：

$stringArray = explode(" ", $fulltext);
foreach ($stringArray as $value)
{
    if(strlen($value) < 3)
         $fulltext= str_replace(" ".$value." " ," ",$fulltext);
}

这里是一个工作 \n">演示