src/Drupal/Component/Utility/Environment.php
public static function checkMemoryLimit($required, $memory_limit = NULL) {
    if (!isset($memory_limit)) {
      $memory_limit = ini_get('memory_limit');
    }

    // There is sufficient memory if:
    // - No memory limit is set.
    // - The memory limit is set to unlimited (-1).
    // - The memory limit is greater than or equal to the memory required for
    //   the operation.
    return ((!$memory_limit) || ($memory_limit == -1) || (Bytes::toInt($memory_limit) >= Bytes::toInt($required)));
  }
public static function checkMemoryLimit($required, $memory_limit = NULL) {
    if (!isset($memory_limit)) {
      $memory_limit = ini_get('memory_limit');
    }

    // There is sufficient memory if:
    // - No memory limit is set.
    // - The memory limit is set to unlimited (-1).
    // - The memory limit is greater than or equal to the memory required for
    //   the operation.
    return ((!$memory_limit) || ($memory_limit == -1) || (Bytes::toInt($memory_limit) >= Bytes::toInt($required)));
  }
public static function checkMemoryLimit ( $ required , $ memory_limit = NULL ) { if ( ! isset ( $ memory_limit ) ) { $ memory_limit = ini_get ( 'memory_limit' ) ; } // There is sufficient memory if: // - No memory limit is set. // - The memory limit is set to unlimited (-1). // - The memory limit is greater than or equal to the memory required for //   the operation. return ( ( ! $ memory_limit ) || ( $ memory_limit == - 1 ) || ( Bytes :: toInt ( $ memory_limit ) >= Bytes :: toInt ( $ required ) ) ) ; }
Compares the memory required for an operation to the available memory.

@param string $required
The memory required for the operation, expressed as a number of bytes with
optional SI or IEC binary unit prefix (e.g. 2, 3K, 5MB, 10G, 6GiB, 8bytes,
9mbytes).
@param $memory_limit
(optional) The memory limit for the operation, expressed as a number of
bytes with optional SI or IEC binary unit prefix (e.g. 2, 3K, 5MB, 10G,
6GiB, 8bytes, 9mbytes). If no value is passed, the current PHP
memory_limit will be used. Defaults to NULL.

@return bool
TRUE if there is sufficient memory to allow the operation, or FALSE
otherwise.
Compares the memory required for an operation to the available memory .