How can PHP be used to search for a specific string while considering case sensitivity?

When searching for a specific string in PHP, we can use the `strpos()` function. By default, `strpos()` is case-sensitive, meaning it will match the exact case of the string being searched for. To search for a specific string while considering case sensitivity, we can use the `stripos()` function instead. `stripos()` performs a case-insensitive search, allowing us to find the specified string regardless of the case. 

$string = "Hello World";
$search = "hello";

if (stripos($string, $search) !== false) {
    echo "String found!";
} else {
    echo "String not found!";
}

Keywords

PHP string search case sensitivity strpos stripos

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