我需要从字符串中为搜索词创建一个多关系关键字数组。例：字符串就像：带吸力的Armitage便携式无线移动电源
我需要类似的输出
1) Armitage
2) Portable
3) Wireless
4) Powerbank
5) Suction
6) Armitage Portable
7) Armitage Wireless
8) Armitage Powerbank
9) Armitage Suction
10) Portable Wireless
11) Portable Powerbank
12) Portable Suction
13) Wireless Powerbank
14) Wireless Suction
15) Powerbank Suction
16) Armitage Portable Wireless
17) Armitage Portable Powerbank
18) Armitage Portable Suction
Etc ...
您可以尝试使用下面的示例：
explode(" ", $string)
<?php
// PHP program to print all
// permutations of a given string.
function bad_words()
{
return [
"a", "a's", "able", "about", "above", "according", "accordingly", "across", "actually",
"afterwards", "again", "against", "ain't", "all", "allow", "allows", "almost", "alone",
"along", "already", "also", "although", "always", "am", "among", "amongst", "an", "and",
"another", "any", "anybody", "anyhow", "anyone", "anything", "anyway", "anyways", "anywhere",
"apart", "appear", "appreciate", "appropriate", "are", "aren't", "around", "as", "aside",
"ask", "asking", "associated", "at", "available", "away", "awfully", "b", "be", "became",
"because", "become", "becomes", "becoming", "been", "before", "beforehand", "behind",
"being", "believe", "below", "beside", "besides", "best", "better", "between", "beyond",
"both", "brief", "but", "by", "c", "c'mon", "c's", "came", "can", "can't", "cannot", "cant",
"cause", "causes", "certain", "certainly", "changes", "clearly", "co", "com", "come", "comes",
"concerning", "consequently", "consider", "considering", "contain", "containing", "contains",
"corresponding", "could", "couldn't", "course", "currently", "d", "definitely", "described",
"despite", "did", "didn't", "different", "do", "does", "doesn't", "doing", "don't", "done",
"down", "downwards", "during", "e", "each", "edu", "eg", "eight", "either", "else",
"elsewhere", "enough", "entirely", "especially", "et", "etc", "even", "ever", "every",
"everybody", "everyone", "everything", "everywhere", "ex", "exactly", "example", "except",
"f", "far", "few", "fifth", "first", "five", "followed", "following", "follows", "for",
"former", "formerly", "forth", "four", "from", "further", "furthermore", "g", "get", "gets",
"getting", "given", "gives", "go", "goes", "going", "gone", "got", "gotten", "greetings",
"h", "had", "hadn't", "happens", "hardly", "has", "hasn't", "have", "haven't", "having",
"he", "he's", "hello", "help", "hence", "her", "here", "here's", "hereafter", "hereby",
"herein", "hereupon", "hers", "herself", "hi", "him", "himself", "his", "hither",
"hopefully", "how", "howbeit", "however", "i", "i'd", "i'll", "i'm", "i've", "ie", "if",
"ignored", "immediate", "in", "inasmuch", "inc", "indeed", "indicate", "indicated",
"indicates", "inner", "insofar", "instead", "into", "inward", "is", "isn't", "it",
"it'd", "it'll", "it's", "its", "itself", "j", "just", "k", "keep", "keeps", "kept",
"know", "knows", "known", "l", "last", "lately", "later", "latter", "latterly", "least",
"less", "lest", "let", "let's", "like", "liked", "likely", "little", "look", "looking",
"looks", "ltd", "m", "mainly", "many", "may", "maybe", "me", "mean", "meanwhile", "merely",
"might", "more", "moreover", "most", "mostly", "much", "must", "my", "myself", "n", "name",
"namely", "nd", "near", "nearly", "necessary", "need", "needs", "neither", "never",
"nevertheless", "new", "next", "nine", "no", "nobody", "non", "none", "noone", "nor",
"normally", "not", "nothing", "novel", "now", "nowhere", "o", "obviously", "of", "off",
"often", "oh", "ok", "okay", "old", "on", "once", "one", "ones", "only", "onto", "or",
"other", "others", "otherwise", "ought", "our", "ours", "ourselves", "out", "outside",
"over", "overall", "own", "p", "particular", "particularly", "per", "perhaps", "placed",
"please", "plus", "possible", "presumably", "probably", "provides", "q", "que", "quite",
"qv", "r", "rather", "rd", "re", "really", "reasonably", "regarding", "regardless",
"regards", "relatively", "respectively", "right", "s", "said", "same", "saw", "say",
"saying", "says", "second", "secondly", "see", "seeing", "seem", "seemed", "seeming",
"seems", "seen", "self", "selves", "sensible", "sent", "serious", "seriously", "seven",
"several", "shall", "she", "should", "shouldn't", "since", "six", "so", "some", "somebody",
"somehow", "someone", "something", "sometime", "sometimes", "somewhat", "somewhere", "soon",
"sorry", "specified", "specify", "specifying", "still", "sub", "such", "sup", "sure", "t",
"t's", "take", "taken", "tell", "tends", "th", "than", "thank", "thanks", "thanx", "that",
"that's", "thats", "the", "their", "theirs", "them", "themselves", "then", "thence", "there",
"there's", "thereafter", "thereby", "therefore", "therein", "theres", "thereupon", "these",
"they", "they'd", "they'll", "they're", "they've", "think", "third", "this", "thorough",
"thoroughly", "those", "though", "three", "through", "throughout", "thru", "thus", "to",
"together", "too", "took", "toward", "towards", "tried", "tries", "truly", "try", "trying",
"twice", "two", "u", "un", "under", "unfortunately", "unless", "unlikely", "until", "unto",
"up", "upon", "us", "use", "used", "useful", "uses", "using", "usually", "v", "value",
"various", "very", "via", "viz", "vs", "w", "want", "wants", "was", "wasn't", "way", "we",
"we'd", "we'll", "we're", "we've", "welcome", "well", "went", "were", "weren't", "what",
"what's", "whatever", "when", "whence", "whenever", "where", "where's", "whereafter", "whereas",
"whereby", "wherein", "whereupon", "wherever", "whether", "which", "while", "whither", "whWo",
"who's", "whoever", "whole", "whom", "whose", "why", "will", "willing", "wish", "with",
"within", "without", "won't", "wonder", "would", "would", "wouldn't", "x", "y", "yes", "yet",
"you", "you'd", "you'll", "you're", "you've", "your", "yours", "yourself", "yourselves", "z", "ounce", "ounces", "ML", "ml"];
}
/**
* permutation function
* @param str string to
* calculate permutation for
* @param l starting index
* @param r end index
*/
$tttt = array();
function permute($str, $l, $r)
{
global $tttt;
if ($l == $r)
$tttt[] = implode(" ",$str);
else
{
for ($i = $l; $i <= $r; $i++)
{
$str = swap($str, $l, $i);
permute($str, $l + 1, $r);
$str = swap($str, $l, $i);
}
}
}
/**
* Swap Characters at position
* @param a string value
* @param i position 1
* @param j position 2
* @return swapped string
*/
function swap($a, $i, $j)
{
$temp;
$charArray = $a;
$temp = $charArray[$i] ;
$charArray[$i] = $charArray[$j];
$charArray[$j] = $temp;
return $charArray;
}
// Driver Code
$str = "Fitzgerald Powerbank with Wireless Charger";
$aStopWords = bad_words();
$str = preg_replace('/\b(' . implode('|', $aStopWords) . ')\b/i', '', $str);
$str1 = explode(" ",$str);
$n = count($str1);
$aaaa = permute($str1, 0, $n - 1);
$tttt = array_unique($tttt);
echo "<pre>"; print_r($tttt);exit;
// This code is contributed by mits.
?>