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Assume the following code in one WordPress plugin is some private info in one page.
<syntaxhighlight lang='php'> function show( $id ) {
return "ID: $id <a href='test?nonce=$nonce'>Click Me</a>";
}
echo show(35); </syntaxhighlight>
With LSCWP ESI API, it can be changed to this: <syntaxhighlight lang='php'> function show( $id, $from_esi = false ) {
// To make sure it is the original call
if ( ! $from_esi ) {
// To make sure LSCWP ESI is on
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( '1.2.4' ) ) {
$params = array( 'id' => $id ) ;// If you have any parameters want to pass
// Let's turn this block to ESI by returning directly
return LiteSpeed_Cache_API::esi_url( 'my_plugin_esi', 'My Plugin Name', $params ) ;
}
}
}
return "ID: $id <a href='test?nonce=$nonce'>Click Me</a>";
}
echo show(35); </syntaxhighlight>
And then, in your main process, hook the ESI call to the real content: <syntaxhighlight lang='php'> if ( method_exists( 'LiteSpeed_Cache_API', 'esi_enabled' ) && LiteSpeed_Cache_API::esi_enabled() ) {
LiteSpeed_Cache_API::hook_tpl_esi('my_plugin_esi', 'hook_esi' );
}
function hook_esi( $params ) {
$id = $params[ 'id' ] ; echo show( $id, true ) ;
} </syntaxhighlight>