Check If String Starts With Another String

This function checks if a given string starts with another string. It also uses strpos but checks specifically if the substring’s position is 0, meaning it’s at the beginning of the string. This function is useful for checking if a string follows a certain format or pattern that starts with a specific sequence of characters.

PHP Function:

function startsWith($str, $substr) { return strpos($str, $substr) === 0; }

// Example
echo startsWith('Hello, World!', 'Hello'); // true
echo startsWith('Hello, World!', 'World'); // false