(PHP 4, PHP 5, PHP 7) Uppercase the first character of each word in a string

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Calculate the sha1 hash of a string

(PHP 7) Perform a regular expression search and replace using callbacks

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Formats a number as a currency string

(PHP 4, PHP 5, PHP 7) Perform a global regular expression match

(PHP 4, PHP 5, PHP 7) Find the first occurrence of a string

(PECL bbcode >= 0.9.0) Close BBCode_container resource

(PHP 5, PHP 7) Uuencode a string string convert_uuencode

(PHP 4, PHP 5, PHP 7) Count the number of substring occurrences