Di wp-includes/default-filters.phpkami dapat menemukan pendaftaran panggilan balik:
// WP Cron
if ( !defined( 'DOING_CRON' ) )
add_action( 'init', 'wp_cron' );
Jika kita menjalankan fungsinya wp_cron()sekarang, kita melihat ini:
$schedules = wp_get_schedules();
foreach ( $crons as $timestamp => $cronhooks ) {
if ( $timestamp > $gmt_time ) break;
foreach ( (array) $cronhooks as $hook => $args ) {
if ( isset($schedules[$hook]['callback']) && !call_user_func( $schedules[$hook]['callback'] ) )
continue;
spawn_cron( $gmt_time );
break 2;
}
}
spawn_cron() mengirimkan permintaan POST yang Anda lihat di log Anda:
$doing_wp_cron = sprintf( '%.22F', $gmt_time );
set_transient( 'doing_cron', $doing_wp_cron );
/**
* Filter the cron request arguments.
*
* @since 3.5.0
*
* @param array $cron_request_array {
* An array of cron request URL arguments.
*
* @type string $url The cron request URL.
* @type int $key The 22 digit GMT microtime.
* @type array $args {
* An array of cron request arguments.
*
* @type int $timeout The request timeout in seconds. Default .01 seconds.
* @type bool $blocking Whether to set blocking for the request. Default false.
* @type bool $sslverify Whether SSL should be verified for the request. Default false.
* }
* }
*/
$cron_request = apply_filters( 'cron_request', array(
'url' => add_query_arg( 'doing_wp_cron', $doing_wp_cron, site_url( 'wp-cron.php' ) ),
'key' => $doing_wp_cron,
'args' => array(
'timeout' => 0.01,
'blocking' => false,
/** This filter is documented in wp-includes/class-http.php */
'sslverify' => apply_filters( 'https_local_ssl_verify', false )
)
) );
wp_remote_post( $cron_request['url'], $cron_request['args'] );
Di sini Anda juga dapat melihat dari mana angka float berasal: Ini dilewatkan sebagai argumen untuk mengidentifikasi transien.
Tidak ada yang perlu dikhawatirkan.