rchr(3) - phpMan

memrchr (3)          - scan memory for a character
strchr (3)           - locate character in string
strchr (3p)          - string scanning operation
strchrnul (3)        - locate character in string
strrchr (3)          - locate character in string
strrchr (3p)         - string scanning operation
wcsrchr (3)          - search a wide character in a wide-character string
wcsrchr (3p)         - wide-character string scanning operation