Nu-Coder Manual

PhpExpress Manual

PHP Joomla
Development

xhprof_sample_disable	Yac

Xhprof Functions	Last updated: Mon, 26 Oct 2026

xhprof_sample_enable

(PECL xhprof >= 0.9.0)

xhprof_sample_enable — Start XHProf profiling in sampling mode

Description

function xhprof_sample_enable(): void

Starts profiling in sample mode, which is a lighter weight version of xhprof_enable(). The sampling interval is 0.1 seconds, and samples record the full function call stack. The main use case is when lower overhead is required when doing performance monitoring and diagnostics.

Parameters

This function has no parameters.

Return Values

null

See Also

xhprof_sample_disable() - Stops xhprof sample profiler
xhprof_enable() - Start xhprof profiler
memory_get_usage() - Returns the amount of memory allocated to the PHP script, or reserved from the system by PHP's memory manager
getrusage() - Gets the current resource usages

xhprof_sample_disable	Yac

Xhprof Functions	Last updated: Mon, 26 Oct 2026