[Nail]

How can I allow specific player to pass through prop_dynamic?

[Nail]

PHP Code:

    ...
    new ent = CreateEntityByName("prop_dynamic_override");
    ...
    SDKHookEx(ent, SDKHook_ShouldCollide, OnCollide);    
}
public bool:OnCollide(entity, collisiongroup, contentsMask, bool:result)
{
    //ent = entity, but client = ????? perhaps client == contentsMask?
} 


On the server, two players
client = 1 and client = 2. I need to turn off ent collision for client = 1. How can I do?

Dump resultsz: entity=280 collisiongroup=8 contentsmask=33636363 result=1. So contentsmask - wtf is it?

[Peace-Maker]

Have a look at the CONTENTS_* and MASK_* defines and this plugin.
You'd need a combination of the ShouldCollide and StartTouch/Touch hooks.