如何获取数组中对象的值？

Question

I have this array of objects:

$table=[{"count":"2","id_f":"2255"},{"count":"6","id_f":"5886"}];

I want to get the value of id_f of each object and check if this value exist in another array ,I tried with this but it gives me the wrong result:

foreach($table as $t){

    if (in_array($t[$id_f],$array){
     //dosomething}
     }else{
     //do something else

    }
 }

I also tried with this:

foreach($table as $t){

    if (in_array($t->$id_f,$array){
     //dosomething}
     }else{
     //do something else

    }
 }

I can't get the right result , I will appreciate any help.

Answer 1

There's no need for the dollar sign before your Object property name (actually, it won't work, except of course if $id_f is a real variable which has for value 'id_f', but somehow I doubt it) :

foreach ($table as $t) {
    if (in_array($t->id_f, $array){
     // do something
     } else {
     // do something else
     }
 }