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<?php |
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declare(strict_types = 1); |
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namespace BrowscapPHP\Parser\Helper; |
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/** |
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* includes general functions for the work with patterns |
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*/ |
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final class SubKey |
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{ |
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private function __construct() |
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{ |
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} |
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/** |
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* Gets the subkey for the pattern cache file, generated from the given string |
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* |
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* @param string $string |
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* |
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* @return string |
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*/ |
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public static function getPatternCacheSubkey(string $string) : string |
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{ |
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return $string[0] . $string[1]; |
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} |
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/** |
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* Gets all subkeys for the pattern cache files |
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* |
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* @return string[] |
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*/ |
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public static function getAllPatternCacheSubkeys() : array |
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{ |
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$subkeys = []; |
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$chars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f']; |
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foreach ($chars as $charOne) { |
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foreach ($chars as $charTwo) { |
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$subkeys[$charOne . $charTwo] = ''; |
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} |
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} |
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return $subkeys; |
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} |
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/** |
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* Gets the sub key for the ini parts cache file, generated from the given string |
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* |
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* @param string $string |
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* |
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* @return string |
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*/ |
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public static function getIniPartCacheSubKey(string $string) : string |
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{ |
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return $string[0] . $string[1] . $string[2]; |
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} |
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/** |
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* Gets all sub keys for the inipart cache files |
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* |
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* @return string[] |
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*/ |
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public static function getAllIniPartCacheSubKeys() : array |
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{ |
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$subKeys = []; |
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$chars = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f']; |
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foreach ($chars as $charOne) { |
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foreach ($chars as $charTwo) { |
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foreach ($chars as $charThree) { |
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$subKeys[] = $charOne . $charTwo . $charThree; |
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} |
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} |
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} |
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return $subKeys; |
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} |
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} |
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browscap /
browscap-php
