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<?php |
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declare(strict_types=1); |
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namespace AppUtils\FileHelper; |
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class UploadFileSizeInfo |
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{ |
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private static int $max_size = -1; |
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/** |
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* Retrieves the maximum allowed upload file size, in bytes. |
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* Takes into account the PHP ini settings <code>post_max_size</code> |
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* and <code>upload_max_filesize</code>. Since these cannot |
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* be modified at runtime, they are the hard limits for uploads. |
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* |
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* NOTE: Based on binary values, where 1KB = 1024 Bytes. |
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* |
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* @return int Will return <code>-1</code> if no limit. |
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*/ |
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public static function getFileSize() : int |
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{ |
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if (self::$max_size < 0) |
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{ |
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self::resolveSize(); |
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} |
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return self::$max_size; |
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} |
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private static function resolveSize() : void |
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{ |
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// Start with post_max_size. |
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$post_max_size = self::parse_size(ini_get('post_max_size')); |
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if ($post_max_size > 0) { |
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self::$max_size = $post_max_size; |
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} |
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// If upload_max_size is less, then reduce. Except if upload_max_size is |
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// zero, which indicates no limit. |
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$upload_max = self::parse_size(ini_get('upload_max_filesize')); |
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if ($upload_max > 0 && $upload_max < self::$max_size) { |
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self::$max_size = $upload_max; |
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} |
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} |
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private static function parse_size(string $size) : int |
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{ |
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$unit = preg_replace('/[^bkmgtpezy]/i', '', $size); // Remove the non-unit characters from the size. |
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$result = (float)preg_replace('/[^0-9\.]/', '', $size); // Remove the non-numeric characters from the size. |
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if($unit) |
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{ |
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// Find the position of the unit in the ordered string which is the power of magnitude to multiply a kilobyte by. |
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return (int)round($result * (1024 ** stripos('bkmgtpezy', $unit[0]))); |
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} |
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return (int)round($result); |
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} |
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} |
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Mistralys /
application-utils
