Escape sequence

Meaning

\n

Linefeed (LF or 0x0A (10) in ASCII)

\r

Carriage return (CR or 0x0D (13) in ASCII)

\t

Horizontal tab (HT or 0x09 (9) in ASCII)

\\

Backslash

\$

Dollar sign

\"

Double quote

\123

Octal notation representation of a character

\x12

Hexadecimal notation representation of a character

function:
int easter_days([int year, [int method]]) 3.0.9

int imagecreatefromjpeg(string filename) 3.0.16