Misc. Functions

connection_aborted — Check whether client disconnected
connection_status — Returns connection status bitfield
connection_timeout — Check if the script timed out
constant — Returns the value of a constant
define — Defines a named constant
defined — Checks whether a given named constant exists
die — Equivalent to exit
eval — Evaluate a string as PHP code
exit — Output a message and terminate the current script
get_browser — Tells what the user's browser is capable of
__halt_compiler — Halts the compiler execution
highlight_file — Syntax highlighting of a file
highlight_string — Syntax highlighting of a string
ignore_user_abort — Set whether a client disconnect should abort script execution
pack — Pack data into binary string
php_check_syntax — Check the PHP syntax of (and execute) the specified file
php_strip_whitespace — Return source with stripped comments and whitespace
show_source — Alias of highlight_file
sleep — Delay execution
sys_getloadavg — Gets system load average
time_nanosleep — Delay for a number of seconds and nanoseconds
time_sleep_until — Make the script sleep until the specified time
uniqid — Generate a unique ID
unpack — Unpack data from binary string
usleep — Delay execution in microseconds

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