Introduce utility method to replace many of the nested `foreach()` patterns...

Introduce utility method to replace many of the nested `foreach()` patterns needed to extract event data from the format Core uses

includes/utils.php

+<?php
+
+namespace WP_Cron_Control_Revisited;
+
+/**
+ * Produce a simplified version of the cron events array
+ *
+ * Also removes superfluous, non-event data that Core stores in the option
+ */
+function collapse_events_array( $events ) {
+	$collapsed_events = array();
+
+	if ( ! is_array( $events ) ) {
+		return $collapsed_events;
+	}
+
+	foreach ( $events as $timestamp => $timestamp_events ) {
+		// Skip non-event data that Core includes in the option
+		if ( ! is_numeric( $timestamp ) ) {
+			continue;
+		}
+
+		foreach ( $timestamp_events as $action => $action_instances ) {
+			foreach ( $action_instances as $instance => $instance_args ) {
+				$collapsed_events[] = array(
+					'timestamp' => $timestamp,
+					'action'    => $action,
+					'instance'  => $instance,
+					'args'      => $instance_args,
+				);
+			}
+		}
+	}
+
+	return $collapsed_events;
+}

wp-cron-control-revisited.php

@@ -12,6 +12,7 @@ namespace WP_Cron_Control_Revisited;
 
 // Load basics needed to instantiate plugin
 require __DIR__ . '/includes/constants.php';
+require __DIR__ . '/includes/utils.php';
 require __DIR__ . '/includes/abstract-class-singleton.php';
 require __DIR__ . '/includes/class-lock.php';