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English
In PHP, stripos and exploit are two very useful functions that can be used in combination to implement fuzzy search functions. The stripos function is used to perform case-insensitive string lookups, while exploit is used to split a string into an array. These two functions can efficiently implement fuzzy search of multiple keywords.
Suppose we have a string that needs to find out if it contains multiple keywords. If any keyword matches, it is considered to be successful. We can use explore to split the keyword into an array, then iterate through each keyword in the array, and use stripos to determine whether the keyword exists in the target string.
<?php
// Suppose we have a text that needs to be searched
$text = "Welcome m66.net，We provide high-quality service。";
// Set multiple keywords
$keywords = "m66.net,quality,Serve";
// use explode Split keywords into arrays
$keywordArray = explode(",", $keywords);
// Initialize an empty array，Keywords used to store matching
$foundKeywords = [];
// Traverse each keyword，use stripos Perform a fuzzy search
foreach ($keywordArray as $keyword) {
// use stripos Find keywords（Case insensitive）
if (stripos($text, $keyword) !== false) {
// If found，Record matching keywords
$foundKeywords[] = $keyword;
}
}
// Output matching keywords
if (!empty($foundKeywords)) {
echo "The keywords found are: " . implode(", ", $foundKeywords);
} else {
echo "No keywords were found。";
}
?>
Target string ( $text ): This is the text we are searching for. Let's assume that this string is the content of a web page or other text that requires keyword search.
Keywords String ( $keywords ): This string contains multiple comma-separated keywords.
exploit() function : We use exploit(",", $keywords) to split the keyword string into an array keywordArray by commas.
stripos() function : stripos is used to check whether the target string $text contains a certain keyword. If included, return the location index of the keyword (if not found, false ). We use !== false to check if it matches.
Results output : If a matching keyword is found, all found keywords are output; if not found, there is no matching keyword.
This method can be used in the following scenarios:
Article content search : Find multiple keywords in the article content to display the part that the user is interested in.
Web page text analysis : Analyze multiple keywords in the web page content to determine whether it contains specific business or technical terms.
Log Analysis : Find multiple error codes or warning messages in the server log.
Case sensitivity : Stripos is case-insensitive by default. If you need to do case-sensitive searches, you can use strpos .
Improve performance : When there are a large number of keywords, each element in the keyword array can be preprocessed, such as removing spaces and special characters, to improve matching efficiency.
