(PECL xdiff >= 1.5.0) Patch a file with a binary diff

(PHP 4 >= 4.2.0, PHP 5 <= 5.0.5, PHP 7) Seeks to pos on fd from whence

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

(PHP 4, PHP 5, PHP 7) Reads entire file into an array

(PHP 4, PHP 5, PHP 7) Changes file mode bool

(PHP 5 >= 5.3.2, PHP 7) Get realpath cache size

(PECL xdiff >= 0.2.0) Alias of xdiff_file_bpatch

(PECL xattr >= 0.9.0) Remove an extended attribute

(PHP 4, PHP 5, PHP 7) Returns the current position of the file read/write pointer

(PHP 4, PHP 5, PHP 7) Outputs a file int readfile