[英]How to Remove repeated words in a string in php
我有一個包含許多單詞的字符串,例如:
$str = "FileZilla Portable FileZilla 3.9
FileZilla Portable Additional Versions
7-Zip Portable 7-Zip Portable 4.42";
我想刪除所有重復項,並且每個單詞只返回一次:
$str = "FileZilla Portable 3.9
FileZilla Portable Additional Versions
7-Zip Portable 4.42";
我該如何用php呢?
做這個:
$str = "FileZilla Portable FileZilla 3.9
FileZilla Portable Additional Versions
7-Zip Portable 7-Zip Portable 4.42";
$arr = array_unique(explode("\n", $str));
$arrLength = count($arr);
for($i = 0; $i < $arrLength; ++$i){
$arr[$i] = implode(" ", array_unique(explode(" ", $arr[$i])));
}
$str = implode("\n", $arr);
echo $str;
以下是相關參考資料:
這是我的代碼。
$str = "FileZilla Portable FileZilla 3.9 FileZilla Portable Additional Versions 7Zip Portable 7Zip Portable 4.42";
$arr = explode("\n", $str);
foreach($arr as $st) {
echo implode(" ", array_unique(explode(" ", $st)));
}
但是數字(7Zip)沒有刪除...
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