wp-admin/includes/class-wp-site-health.php:3097Populates the list of cron events and store them to a class-wide variable.
private function get_cron_tasks() { $cron_tasks = _get_cron_array(); if ( empty( $cron_tasks ) ) { $this->crons = new WP_Error( 'no_tasks', __( 'No scheduled events exist on this site.' ) ); return; } $this->crons = array(); foreach ( $cron_tasks as $time => $cron ) { foreach ( $cron as $hook => $dings ) { foreach ( $dings as $sig => $data ) { $this->crons[ "$hook-$sig-$time" ] = (object) array( 'hook' => $hook, 'time' => $time, 'sig' => $sig, 'args' => $data['args'], 'schedule' => $data['schedule'], 'interval' => $data['interval'] ?? null, ); } } } }Introduced in 5.2.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-wp-site-health.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.