Var_dump

foreach($classPupils as $key => $value){
          dump_source($key);
          dump_source($value['NAME']);
          dump_source($value);
}

dump_source($value['NAME']);

// integer
0;
 
?> <?php
 
// string
'Einoras';
 
?> <?php
 
// array
array (
  'ID' => '153085',
  'CLASS' => '153404',
  'ADMITDATE' => '2012-05-14',
  'LEAVEDATE' => '0000-00-00',
  'VALID' => '1',
  'P_ID' => '153085',
  'UniqId' => '37098',
  'GLOBALID' => '82715768205',
  'PHONE' => '865998394',
  'ADDRESS' => '',
  'BIRTHDAY' => '2000-11-10',
  'LASTLOGIN' => '0000-00-00 00:00:00',
  'EMAIL' => 'einorasb5@gmail.com',
  'NAME' => 'Einoras',
  'SURNAME' => 'Babianskas',
  'ACCESSCARDNO' => '3487438',
);

function dump_source($var) {
 
    foreach (func_get_args() as $var) {
        $code .= "// " . gettype($var) . "\n" . var_export($var, TRUE) . ";\n\n";
    }
    return highlight_string("<?php\n\n$code?>", NULL);
}

array(3) {
  [0]=>
  int(1)
  [1]=>
  int(2)
  [2]=>
  array(3) {
    [0]=>
    string(1) "a"
    [1]=>
    string(1) "b"
    [2]=>
    string(1) "c"
  }
}

array(3) { [0]=> array(2) { [0]=> int(12) [1]=> array(2) { [0]=> int(232) [1]=> int(234) } } [1]=> array(2) { [0]=> int(122) [1]=> array(2) { [0]=> int(2322) [1]=> int(2234) } } [2]=> array(2) { [0]=> int(1222) [1]=> int(342) } } Array ( [0] => Array ( [0] => Array ( [1] => Array ( [0] => 1 смена [1] => 232 ) [2] => Array ( [0] => 2 смена [1] => 232 ) ) [1] => Array ( [1] => Array ( [0] => 1 смена [1] => 2399 ) [2] => Array ( [0] => 2 смена [1] => 2392 ) ) ) )

echo '<pre>';

function d($var) {
    echo "<pre>";
    if(is_array($var)) {
        print_r($var);
    } else {
        var_dump($var);
    }
    echo "</pre>";
}

print("<PRE>");
print(var_dump(....));
print("</PRE>");