<?php
/*
* Plugin Name: the time
*/

function show_esi(){
    if( method_exists( 'LiteSpeed_Cache_API', 'esi_enabled' ) && LiteSpeed_Cache_API::esi_enabled() ) {
        // To make sure is using the compatible API version
        if ( method_exists( 'LiteSpeed_Cache_API', 'v' ) && LiteSpeed_Cache_API::v( '1.3' ) ) {
            // Let's turn this block to ESI by returning directly
            return LiteSpeed_Cache_API::esi_url( 'thetime_esi', 'My Plugin the time' ) ;
        }
    }
}

if ( method_exists( 'LiteSpeed_Cache_API', 'esi_enabled' ) && LiteSpeed_Cache_API::esi_enabled() ) {
    LiteSpeed_Cache_API::hook_tpl_esi('hook_esi' );
}

function hook_esi(){
    echo time();
    exit;
}

function theTime(){
    echo show_esi() ;
    // echo time();
}
add_shortcode('thetime', 'theTime');
?>