Miscellaneous functionsPHP ManualPrevNextXXXI. Miscellaneous functions These functions were placed here because none of the other categories seemed to fit. Table of Contentsconnection_aborted — Returns true if client disconnected.connection_status — Returns connection status bitfield.connection_timeout — Return true if script timed out.define — Defines a named constant.defined — Checks whether a given named constant exists. die — Output a message and terminate the current script. eval — Evaluate a string as PHP code.exit — Terminate current script.func_get_arg — Return an item from the argument list.func_get_args — Returns an array comprising a function's argument list. func_num_args — Returns the number of arguments passed to the function. function_exists — Return true if the given function has been defined. get_browser — Tells what the user's browser is capable of. ignore_user_abort — Set whether a client disconnect should abort script execution. iptcparse — Parse a binary IPTC http://www.xe.net/iptc/ block into single tags. leak — Leak memory.pack — Pack data into binary string.register_shutdown_function — Register a function for execution on shutdown. serialize — Generates a storable representation of a value. sleep — Delay execution.uniqid — Generate a unique id.unpack — Unpack data from binary string.unserialize — Creates a PHP value from a stored representation. usleep — Delay execution in microseconds.PrevHomeNextmssql_select_dbUpconnection_aborted