46 lines
1.4 KiB
PHP
46 lines
1.4 KiB
PHP
<?php
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/**
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* @file
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* Contains \Drupal\Component\Utility\Environment.
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*/
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namespace Drupal\Component\Utility;
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/**
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* Provides PHP environment helper methods.
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*/
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class Environment {
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/**
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* Compares the memory required for an operation to the available memory.
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*
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* @param string $required
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* The memory required for the operation, expressed as a number of bytes with
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* optional SI or IEC binary unit prefix (e.g. 2, 3K, 5MB, 10G, 6GiB, 8bytes,
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* 9mbytes).
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* @param $memory_limit
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* (optional) The memory limit for the operation, expressed as a number of
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* bytes with optional SI or IEC binary unit prefix (e.g. 2, 3K, 5MB, 10G,
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* 6GiB, 8bytes, 9mbytes). If no value is passed, the current PHP
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* memory_limit will be used. Defaults to NULL.
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*
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* @return bool
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* TRUE if there is sufficient memory to allow the operation, or FALSE
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* otherwise.
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*/
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public static function checkMemoryLimit($required, $memory_limit = NULL) {
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if (!isset($memory_limit)) {
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$memory_limit = ini_get('memory_limit');
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}
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// There is sufficient memory if:
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// - No memory limit is set.
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// - The memory limit is set to unlimited (-1).
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// - The memory limit is greater than or equal to the memory required for
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// the operation.
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return ((!$memory_limit) || ($memory_limit == -1) || (Bytes::toInt($memory_limit) >= Bytes::toInt($required)));
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}
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}
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