Online PHP editor | output for hCvq5

<?php $wb_users = array( array( "Username" => "Azmina", "Level" => "form-5", "School" => "KOLEJ D PATINGGI ABANG HJ ABDILLAH, SARAWAK", "SchoolID" => 4522, ), array( "Username" => "Gudako", "Level" => "form-5", "School" => "KOLEJ D PATINGGI ABANG HJ ABDILLAH, SARAWAK", "SchoolID" => 4522, ), array( "Username" => "Takatosaijo29", "Level" => "form-5", "School" => "SEKOLAH MENENGAH KEBANGSAAN BAHANG, SABAH", "SchoolID" => 4210, ), array( "Username" => "Obon", "Level" => "form-5", "School" => "SEKOLAH MENENGAH KEBANGSAAN BAHANG, SABAH", "SchoolID" => 4210, ), array( "Username" => "Rayana12", "Level" => "form-5", "School" => "SEKOLAH MENENGAH KEBANGSAAN BAHANG, SABAH", "SchoolID" => 4210, ), array( "Username" => "kaiyuanbeh", "Level" => "form-5", "School" => "SEKOLAH MENENGAH KEBANGSAAN PERMATANG RAWA, PULAU PINANG", "SchoolID" => 4250, ), array( "Username" => "Divyabharthi", "Level" => "form-5", "School" => "SEKOLAH MENENGAH KEBANGSAAN PETALING, WP KL", "SchoolID" => 4244, ), array( "Username" => "blackchocolatecake", "Level" => "form-4", "School" => "SEKOLAH MENENGAH KEBANGSAAN POI LAM, PERAK", "SchoolID" => 4375, ), ); print_r(array_column($wb_users, 'SchoolID')); $counts = array_count_values((array_column($wb_users, 'SchoolID'))); print_r($counts); ?>