What are some best practices for using the stripos function in PHP?

When using the stripos function in PHP to search for a substring within a string without case sensitivity, it is important to handle cases where the substring may not be found. To do this, you can check if the stripos function returns false, indicating that the substring was not found. Additionally, it is a good practice to use strict comparison (===) when checking for false to avoid unexpected behavior. 

$string = "Hello World";
$substring = "world";

$position = stripos($string, $substring);

if($position !== false) {
    echo "Substring found at position: " . $position;
} else {
    echo "Substring not found";
}

Keywords

stripos PHP case-insensitive string manipulation strpos

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