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

(PHP 4, PHP 5, PHP 7) Repeat a string string

(PHP 4, PHP 5, PHP 7) Convert a quoted-printable string to an 8 bit string

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

(PHP 4, PHP 5, PHP 7) Replace text within a portion of a string

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

(PHP >= 5.4.0) Decodes a hexadecimally encoded binary string

(PHP 5 >= 5.1.0, PHP 7) Convert special HTML entities back to characters

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Randomly shuffles a string

(PHP 4 >= 4.0.1, PHP 5, PHP 7) Calculate Levenshtein distance between two strings