(PHP 4, PHP 5, PHP 7) Return a formatted string

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Calculates the crc32 polynomial of a string

(PHP 4, PHP 5, PHP 7) Calculate the md5 hash of a string

(PHP 4, PHP 5, PHP 7) Make a string's first character uppercase

(PHP 4 >= 4.2.0, PHP 5, PHP 7) Perform the rot13 transform on a string

(PHP 4, PHP 5, PHP 7) Alias of

(PHP 4, PHP 5, PHP 7) Convert logical Hebrew text to visual text

(PHP 4, PHP 5, PHP 7) Convert logical Hebrew text to visual text with newline conversion

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Return a formatted string

(PHP 4, PHP 5, PHP 7) Output a formatted string