__DIR__ Директория файла. Если используется внутри подключаемого файла, то возвращается директория этого файла.https://www.php.net/manual/ru/language.constants.p...
  
  /((09|10|11|12|13|14|15|16|17|18|19|20|21):([0-5]\d))|(22:00)/foreach ($n as $values) {
    if ($values["PROPERTY_DAYTIME_VALUE"] == 1366 && $values["PROPERTY_TYPE_VALUE"] == 1375) {
          $arItem[0]["SUBCATEGORY"][0]["PRODUCTS"][] = $values;
    }
}      
  
  <?php
$array = ['name' => 'Albert1991'];
// json
var_dump(json_encode($array)); //{"name":"Albert1991"}
// НЕ json, а сериализованный формат php
var_dump(serialize($array)); // a:1:{s:4:"name";s:10:"Albert1991";}      
  
  $fields = [
  'clientName' => 'name',
  'clientPhone' => 'phone',
  'clientEmail' => 'email'
];
$where = [];
$resultArr = [];
foreach($fields as $key => $field) {
  if($arr[$key]) {
    $where[] = "`$field` LIKE ?";
    $resultArr[] = '%' . $arr['clientName'] . '%';
  }
}
if(count($where) > 0) {
  $sql .= ' WHERE ' . implode(' AND ', $where);
}      
  
  Possible solutions:
# Reduce memory load on the system
# Increase physical memory or swap space
# Check if swap backing store is full
# Decrease Java heap size (-Xmx/-Xms)
# Decrease number of Java threads
# Decrease Java thread stack sizes (-Xss)
# Set larger code cache with -XX:ReservedCodeCacheSize=
# JVM is running with Zero Based Compressed Oops mode in which the Java heap is
# placed in the first 32GB address space. The Java Heap base address is the
# maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress
# to set the Java Heap base and to place the Java Heap above 32GB virtual address.