How can the use of strpos() function improve the efficiency of URL string checks in PHP?

When checking URLs in PHP, using the strpos() function can improve efficiency by quickly determining if a specific substring exists within the URL string. This function allows for a simple and fast way to search for a specific pattern or keyword within the URL, making it easier to validate URLs or extract specific information from them. 

$url = "https://www.example.com/page";
$keyword = "example";

if(strpos($url, $keyword) !== false){
    echo "Keyword found in URL";
} else {
    echo "Keyword not found in URL";
}

Keywords

strpos efficiency URL string checks PHP

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