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<?php |
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declare(strict_types=1); |
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namespace Rico\Slib; |
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abstract class StringUtils |
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{ |
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/** |
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* Converts an alphabetic $string into an identifier (an integer). |
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* |
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* @param string $string |
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* @param string $secret to decode the alphabetic string |
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* |
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* @return int |
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*/ |
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public static function alphaToId(string $string, string $secret = ''): int |
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{ |
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$out = 0; |
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$index = 'abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'; |
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$base = mb_strlen($index); |
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$stringLength = mb_strlen($string) - 1; |
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if ($secret) { |
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$splitIndex = str_split($index); |
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$array = array_slice(str_split(hash('sha512', $secret)), 0, $base); |
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array_multisort($array, SORT_DESC, $splitIndex); |
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$index = implode($splitIndex); |
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} |
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for ($t = $stringLength; $t >= 0; --$t) { |
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$bcp = $base ** ($stringLength - $t); |
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$out += mb_strpos($index, mb_substr($string, $t, 1)) * $bcp; |
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} |
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return $out; |
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} |
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/** |
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* Transforms an $uglyString (with incorrect ponctuation) into beautiful string (with correct ponctuation). |
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* |
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* @param string $uglyString |
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* |
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* @return string |
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*/ |
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public static function beautifulise(string $uglyString): string |
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{ |
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$uglyString = self::normalizeWhitespace($uglyString); |
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// Be careful, there are non secable spaces here |
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$uglyString = str_replace(['\'\'', ' ;', ' ?', ' !', ' :', ' »', '« ', '\'', '...'], ['"', ' ;', ' ?', ' !', ' :', ' »', '« ', '’', '…'], $uglyString); |
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$uglyString = preg_replace('#(\d)\s?([$€£¥])#u', '$1 $2', $uglyString); |
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$uglyString = preg_replace_callback('#\d{4,}#u', function ($matches) { |
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return number_format((float) $matches[0], 0, ',', ' '); |
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}, $uglyString); |
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// Count quotes |
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$QuotesCount = mb_strlen($uglyString) - mb_strlen(str_replace('"', '', $uglyString)); |
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// Repeat two times is important for quotes inside quotes |
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if ($QuotesCount % 2 == 0) { |
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$uglyString = preg_replace('#([\s\r\n\p{P}]|^|)(\")([^\"]*)(\")([\s\p{P}]|$)#u', '$1“$3”$5', $uglyString); |
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$uglyString = preg_replace('#([\s\r\n\p{P}]|^|)(\")([^\"]*)(\")([\s\p{P}]|$)#u', '$1“$3”$5', $uglyString); |
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} |
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return $uglyString; |
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} |
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/** |
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* Gets a human readable string of a size in $bytes. |
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* |
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* @param int $bytes |
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* |
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* @return string |
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*/ |
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public static function humanFilesize(int $bytes): string |
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{ |
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$size = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']; |
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$factor = floor((mb_strlen((string) $bytes) - 1) / 3); |
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return MathUtils::smartRound($bytes / pow(1000, $factor)).@$size[$factor]; |
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} |
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/** |
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* Converts a $identifier into an alphanumeric string. |
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* |
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* @param int $identifier |
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* @param string $secret to encode the integer |
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* |
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* @return string |
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*/ |
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public static function idToAlpha(int $identifier, string $secret = ''): string |
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{ |
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$out = ''; |
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$index = 'abcdefghijklmnopqrstuvwxyz0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'; |
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$base = mb_strlen($index); |
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if ($secret) { |
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$splitIndex = str_split($index); |
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$array = array_slice(str_split(hash('sha512', $secret)), 0, $base); |
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array_multisort($array, SORT_DESC, $splitIndex); |
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$index = implode($splitIndex); |
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} |
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for ($t = ($identifier != 0 ? floor(log($identifier, $base)) : 0); $t >= 0; --$t) { |
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$bcp = $base ** $t; |
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$a = floor($identifier / $bcp) % $base; |
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$out .= mb_substr($index, $a, 1); |
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$identifier = $identifier - ($a * $bcp); |
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} |
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return $out; |
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} |
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/** |
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* Removes whitespaces, line breaks and comment out of a $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 minify(string $string): string |
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{ |
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$string = preg_replace('#\/\*.*\*\/#s', '', $string); |
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$string = self::removeLine($string); |
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$string = self::normalizeWhitespace($string); |
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$string = preg_replace('# ?([\;\:\{\}\,]) ?#', '$1', $string); |
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return $string; |
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} |
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/** |
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* Cleans a $string by removing multi-spaces, line breaks, indents and HTML tags. |
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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 normalize(string $string): string |
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{ |
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$string = str_replace(['<br/>', '<br />', '</br>', '<br>', '<br >', '< br >'], ' ', $string); |
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$string = html_entity_decode($string, ENT_HTML5, 'UTF-8'); |
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$string = strip_tags($string); |
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$string = self::removeLine($string); |
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$string = self::normalizeWhitespace($string); |
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return $string; |
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} |
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/** |
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* Replaces all sort of spaces (tab, nil, non-breaking…) in a $string by a simple space. |
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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 normalizeWhitespace(string $string): string |
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{ |
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/* |
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* \0 : NIL char |
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* \xC2 : non-breaking space |
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* \xA0 : non-breaking space |
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* \x0B : vertical tab |
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* \t : tab |
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*/ |
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return trim(preg_replace('/[\0\xC2\xA0\x0B\t\ \ \ \]+/u', ' ', $string)); |
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} |
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/** |
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* Generates a random string of $length $allowedChars. |
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* |
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* @param int $length |
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* @param string $allowedChars |
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* |
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* @return string |
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*/ |
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public static function randString(int $length = 10, string $allowedChars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'): string |
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{ |
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if ($length <= 0) { |
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return ''; |
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} |
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$randString = ''; |
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$allowedCharsLength = mb_strlen($allowedChars, 'UTF-8'); |
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for ($i = 0; $i < $length; ++$i) { |
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$randString .= mb_substr($allowedChars, mt_rand(0, ($allowedCharsLength - 1)), 1, 'UTF-8'); |
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} |
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return $randString; |
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} |
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/** |
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* Removes brackets and its content from a $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 removeBracketContent(string $string): string |
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{ |
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return trim(preg_replace("#\s*\[[^)]+\]\s*#", '', $string)); |
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} |
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/** |
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* Removes all sort of line breaks inside a $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 removeLine(string $string): string |
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{ |
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return preg_replace('/[\r\n]+/', '', $string); |
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} |
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/** |
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* Removes all sort of spaces from a $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 removeWhitespace(string $string): string |
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{ |
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/* |
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* \0 : NIL char |
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* \xC2 : non-breaking space |
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* \xA0 : non-breaking space |
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* \x0B : vertical tab |
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* \t : tab |
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*/ |
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return preg_replace('/[\0\xC2\xA0\x0B\t\ \ \ \]+/u', '', $string); |
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} |
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/** |
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* Transforms a $string into a ascii-only string separated by -. |
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* |
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* @param string $string |
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* @return string |
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* @throws \Exception |
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*/ |
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public static function slugify(string $string): string |
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{ |
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setlocale(LC_CTYPE, 'UTF-8'); |
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// replace non letter or digits by - |
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$string = preg_replace('#[^\\pL\d]+#u', '-', $string); |
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$transliterate_string = transliterator_transliterate("Any-Latin; Latin-ASCII; NFD; [:Nonspacing Mark:] Remove; NFC; Lower();", $string); |
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if (false === $transliterate_string) { |
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throw new \Exception('This function (' . __FUNCTION__ .') was not able to transliterate “'. $string .'”'); |
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} |
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$string = trim($transliterate_string, '-'); |
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return $string; |
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} |
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/** |
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* Replaces underscore in $string by spaces. |
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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 underscoreToSpace(string $string): string |
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{ |
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$string = trim(str_replace('_', ' ', $string)); |
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$string = self::normalizeWhitespace($string); |
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return $string; |
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} |
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} |
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