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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 327 | * @param string $doing_wp_cron The unix timestamp of the cron lock. |
| 328 | */ |
| 329 | $cron_request = apply_filters( 'cron_request', array( |
| 330 | 'url' => add_query_arg( 'doing_wp_cron', $doing_wp_cron, site_url( 'wp-cron.php' ) ), |
| 331 | 'key' => $doing_wp_cron, |
| 332 | 'args' => array( |
| 333 | 'timeout' => 0.01, |
| 334 | 'blocking' => false, |
| 335 | /** This filter is documented in wp-includes/class-wp-http-streams.php */ |
| 336 | 'sslverify' => apply_filters( 'https_local_ssl_verify', false ) |
| 337 | ) |
| 338 | ), $doing_wp_cron ); |
| 339 | |
| 340 | wp_remote_post( $cron_request['url'], $cron_request['args'] ); |
| 341 | } |
| 342 | |
| 343 | /** |
| 344 | * Run scheduled callbacks or spawn cron for all scheduled events. |
| 345 | * |