usleep

PHP 4, PHP 5, PHP 7, PHP 8
usleep - Delay execution in microseconds
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Code Examples

usleep( int$microseconds ): void

Delays program execution for the given number of microseconds.

Parameters

microseconds

Halt time in microseconds. A microsecond is one millionth of a second.

Note:

Values larger than 1000000 (i.e. sleeping for more than a second) may not be supported by the operating system. Use sleep instead.

Note:

On Windows, the system may sleep longer that the given number of microseconds, depending on the hardware.

Return Values

No value is returned.

Related Functions

Example of usleep

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