laravel ORM merge two json arrays

Excuse me, I use laravel ORM have two json arrays , like this:

{personnels:[
    {"id" : 1,"name"  : "bruce","sex"   : 1},
    {"id" : 2,"name" : "peter","sex"  : 0}
    ]
};
{skill:[
        {"id" : 1,"skill_name": 'php', "personnels_id" : 1},
        {"id" : 2,"skill_name": 'jsp',"personnels_id" : 1},
        {"id" : 3,"skill_name": 'asp',"personnels_id" : 2}
       ]
};

I want to merge two json arrays

(personnels id = skill personnels_id )

skill arrays is into personnels arrays

like this result:

{merge:[
        {"id":1,"name":"bruce","sex:1,"skill":[{"id": 1,"skill_name": 'php', "personnels_id" : 1},{"id": 2,"skill_name": 'jsp',"personnels_id" : 1}]},

        {"id":2,"name":"peter","sex":0,"skill":[{"id": 3,"skill_name": 'asp',"personnels_id" : 2}
        ]
};

How can I do , please help me, thank you.

via Bruce