What are some best practices for using stripos in PHP to search for substrings within strings?

When using stripos in PHP to search for substrings within strings, it is important to ensure that the search is case-insensitive. This can be achieved by using the stripos function instead of strpos. Additionally, it is a good practice to check if the search string is found within the main string before further processing. 

// Check if a substring is present in a string in a case-insensitive manner
$mainString = "Hello World";
$searchString = "world";

if(stripos($mainString, $searchString) !== false) {
    echo "Substring found!";
} else {
    echo "Substring not found.";
}

Keywords

PHP stripos substrings strings search

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