我正在尝试将字符串中的所有单词提取到一个数组中,但是我遇到了一些空格(
)的问题。
这就是我所做的:
//Clean data to text only
$data = strip_tags($data);
$data = htmlentities($data, ENT_QUOTES, 'UTF-8');
$data = html_entity_decode($data, ENT_QUOTES, 'UTF-8');
$data = htmlspecialchars_decode($data);
$data = mb_strtolower($data, 'UTF-8');
//Clean up text from special chrs I don't want as words
$data = str_replace(',', '', $data);
$data = str_replace('.', '', $data);
$data = str_replace(':', '', $data);
$data = str_replace(';', '', $data);
$data = str_replace('*', '', $data);
$data = str_replace('?', '', $data);
$data = str_replace('!', '', $data);
$data = str_replace('-', ' ', $data);
$data = str_replace("\n", ' ', $data);
$data = str_replace("\r", ' ', $data);
$data = str_replace("\t", ' ', $data);
$data = str_replace("\0", ' ', $data);
$data = str_replace("\x0B", ' ', $data);
$data = str_replace(" ", ' ', $data);
//Clean up duplicated spaces
do {
$data = str_replace(' ', ' ', $data);
} while(strpos($data, ' ') !== false);
//Make array
$clean_data = explode(' ', $data);
echo "<pre>";
var_dump($clean_data);
echo "</pre>";
这输出:
array(58) {
[0]=>
string(5) " "
[1]=>
string(5) " "
[2]=>
string(11) "anläggning"
[3]=>
string(3) "med"
[4]=>
string(3) "den"
[5]=>
string(10) "erfarenhet"
[6]=>
string(3) "som"
}
如果我检查输出源,我会看到前 2 个数组值是
.
无论我如何尝试,我都无法从字符串中删除它。有任何想法吗?
更新:
在对代码进行一些调整后,我设法得到以下输出:
array(56) {
[0]=>
string(1) "�" //Notice change. Instead of string length 5 it now says 1. But still its garbage.
[1]=>
string(1) "�"
[2]=>
string(11) "anläggning"
[3]=>
string(3) "med"
[4]=>
string(3) "den"
[5]=>
string(10) "erfarenhet"
[6]=>
string(3) "som"
[7]=>
string(5) "finns"
[8]=>
string(4) "inom"
谢谢!
答案(对于懒惰的人):
即使你这是一种稍微不同的解决问题的方法,它也从来没有真正回答为什么我会遇到上面的问题(比如剩余
空间和其他额外的奇怪空间),我喜欢它,它比我的原始代码好得多。
感谢所有为此做出贡献的人!
//Clean data to text only
$data = strip_tags($data);
$data = html_entity_decode($data, ENT_QUOTES, 'UTF-8');
$data = htmlspecialchars_decode($data);
$data = mb_strtolower($data, 'UTF-8');
//Clean up text from special chrs
$data = str_replace(array("-"), ' ', $data);
$clean_data = str_word_count($data, 1, 'äöå');
echo "<pre>";
var_dump($clean_data);
echo "</pre>";