How does substr_count() differ from str_word_count() in PHP?
substr_count() is used to count the number of occurrences of a substring within a string, while str_word_count() is used to count the number of words in a string. If you want to count the number of occurrences of a specific word in a string, you should use substr_count(). If you want to count the total number of words in a string, you should use str_word_count().
// Using substr_count() to count the number of occurrences of a specific word in a string
$string = "The quick brown fox jumps over the lazy dog";
$word = "the";
$count = substr_count(strtolower($string), strtolower($word));
echo "The word '{$word}' appears {$count} times in the string.";
// Using str_word_count() to count the total number of words in a string
$string = "The quick brown fox jumps over the lazy dog";
$word_count = str_word_count($string);
echo "The total number of words in the string is {$word_count}.";