PHP miscellaneous functions

Function

Description

connection_aborted()

Check if the client is disconnected.

connection_status()

Return the current connection status.

connection_timeout()

Deprecated in PHP 4.0.5.

constant()

Returns a constant value.

define()

Define a constant.

defined()

Check whether a certain constant exists.

die()

Output a message and exit the current script.

eval()

Calculate the string according to PHP code.

exit()

Output a message and exit the current script.

get_browser()

Returns the performance of the user's browser.

highlight_file()

Syntax highlighting for files.

highlight_string()

Syntax highlighting for strings.

ignore_user_abort()

Set whether disconnecting from the client will terminate the execution of the script.

pack()

Load data into a binary string.

php_check_syntax()

Deprecated in PHP 5.0.5.

php_strip_whitespace()

Return the source code file with PHP comments and whitespace characters removed.

show_source()

highlight_file().

sleep()

Delay code execution for a few seconds.

time_nanosleep()

Delay code execution for a number of seconds and nanoseconds.

time_sleep_until()

Delay code execution for the specified time.

uniqid()

Generate unique ID.

unpack()

Unpack data from binary string.

usleep()

Delay code execution for a few microseconds.