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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 |
---|---|
1165 | * |
1166 | * Returning an array will short-circuit the normal retrieval of ready |
1167 | * cron jobs, causing the function to return the filtered value instead. |
1168 | * |
1169 | * @since 5.1.0 |
1170 | * |
1171 | * @param null|array[] $pre Array of ready cron tasks to return instead. Default null |
1172 | * to continue using results from _get_cron_array(). |
1173 | */ |
1174 | $pre = apply_filters( 'pre_get_ready_cron_jobs', null ); |
1175 |
|
1176 | if ( null !== $pre ) { |
1177 | return $pre; |
1178 | } |
1179 |
|
1180 | $crons = _get_cron_array(); |
1181 | $gmt_time = microtime( true ); |
1182 | $results = array(); |
1183 |
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