Converts a string to an integer by calculating the sum of the ASCII values of its characters.

word_ord.php

<?php declare(strict_types = 1);

/**
 * Converts a string to an integer by calculating the sum of the ASCII values of its characters.
 * @license MIT
 * 
 * @param string $string The input string to convert.
 * @return int The resulting integer value.
 * @throws \RangeException If the input string to encode contains an invalid character.
 */
function word_ord(string $string): int {
	if (strlen($string) > PHP_INT_SIZE) {
		throw new \OverflowException('String is too long to be converted to an integer');
	}

	$integer = 0;

	for ($i = 0; $i < strlen($string); $i++) {
		$ord = ord($string[$i]);

		if ($ord >= 33 && $ord <= 126) {
			$integer += $ord * (256 ** $i);
		} else {
			throw new \RangeException('Invalid character out of range');
		}
	}

	return $integer;
}