sleep
Delay execution
&reftitle.description;
intsleep
intseconds
Delays the program execution for the given number of
seconds.
&reftitle.parameters;
seconds
Halt time in seconds.
&reftitle.returnvalues;
Returns zero on success, or &false; on error.
If the call was interrupted by a signal, sleep returns
a non-zero value. On Windows, this value will always be
192 (the value of the
WAIT_IO_COMPLETION constant within the Windows API).
On other platforms, the return value will be the number of seconds left to
sleep.
&reftitle.errors;
If the specified number of seconds is negative,
this function will generate a E_WARNING.
&reftitle.changelog;
&Version;
&Description;
5.3.4
Before PHP 5.3.4, on Windows, sleep always
returns &null; when sleep has occurred, regardless of whether the
sleep was interrupted or not.
&reftitle.examples;
<function>sleep</function> example
]]>
This example will output (after 10 seconds)
&reftitle.seealso;
usleep
time_nanosleep
time_sleep_until
set_time_limit