查看选项\'rewrite_rules\' 已重置–就是这样flush_rewrite_rules() 内部执行–钩住选项操作并记录发生的情况。

下面的小插件可以做到这一点。它将告诉您哪些代码刷新了重写规则，以及刷新前后规则的外观。如果没有冲水，只会说nothing logged. :)

<?php
/* Plugin Name: Debug rewrite rule flushing */

add_action( \'plugins_loaded\', \'wpse_67368_debug_rewrite_flushes\' );

function wpse_67368_debug_rewrite_flushes()
{
    static $log = array ();

    if ( \'plugins_loaded\' === current_filter() )
    {
        $hooks = array (
            \'added_option\',
            \'updated_option\',
            \'deleted_option\',
            \'shutdown\'
        );
        foreach ( $hooks as $hook )
        {
            add_action( $hook, __FUNCTION__, 10, 3 );
        }

        return;
    }

    if ( \'shutdown\' === current_filter() )
    {
        empty ( $log ) and $log = \'nothing logged\';
        printf( \'<pre>%s</pre>\', var_export( $log, TRUE ) );
        return;
    }

    $args = func_get_args();
    $option = array_shift( $args );

    if ( \'rewrite_rules\' === $option )
    {
        $log[] = array (
            \'filter\'    => current_filter(),
            \'option\'    => $option,
            \'args\'      => $args,
            \'backtrace\' => debug_backtrace()
        );
    }
}