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<?php |
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namespace Win\Common\Utils; |
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/** |
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* Manipulador de Strings |
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*/ |
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class Str |
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{ |
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const TRUNCATE_BEFORE = 0; |
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const TRUNCATE_AFTER = 1; |
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/** |
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* @param string $string |
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* @return string |
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*/ |
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public static function toUrl($string) |
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{ |
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$url = iconv('UTF-8', 'ASCII//TRANSLIT', $string); |
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$url = preg_replace("/[^a-zA-Z0-9\/_| -]/", '', $url); |
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$url = preg_replace("/[\/_| -]+/", '-', $url); |
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$url = strtolower(trim($url, '-')); |
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return $url; |
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} |
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/** |
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* @param string $string |
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* @return string |
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*/ |
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public static function toFileName($string) |
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{ |
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return static::toUrl($string); |
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} |
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/** |
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* @param string $string |
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* @return int |
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*/ |
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public static function length($string) |
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{ |
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return mb_strlen($string); |
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} |
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/** |
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* @param string $string |
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* @return string |
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*/ |
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public static function lower($string) |
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{ |
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return mb_strtolower($string); |
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} |
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/** |
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* @param string $string |
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* @return string |
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*/ |
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public static function upper($string) |
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{ |
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return mb_strtoupper($string); |
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} |
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/** |
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* @param string $string |
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* @return string |
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*/ |
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public static function lowerCamel($string) |
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{ |
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preg_match('/^_*/', $string, $begin); |
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return $begin[0] . lcfirst(static::camel($string)); |
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} |
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/** |
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* @param string $string |
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* @return string |
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*/ |
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public static function camel($string) |
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{ |
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$string = ucwords(strtolower(trim(str_replace(['-', '_'], ' ', $string)))); |
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return preg_replace('/[^a-zA-Z0-9]/', '', $string); |
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} |
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/** |
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* Retorna a string resumida, sem cortar a última palavra |
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* @param string $string |
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* @param int $limit tamanho máximo |
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* @param int $mode TRUNCATE_BEFORE | TRUNCATE_AFTER |
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* @return string |
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*/ |
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public static function truncate($string, $limit, $mode = self::TRUNCATE_BEFORE) |
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{ |
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if (mb_strlen($string) > $limit) { |
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$string = strip_tags($string); |
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$limit = static::calcLimit($string, $limit, $mode); |
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$string = rtrim(mb_substr($string, 0, $limit), ' ,.!?') . '...'; |
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} |
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return $string; |
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} |
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/** |
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* Calcula o limite ideal |
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* @param string $string |
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* @param int $limit |
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* @param int $mode |
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* @return int |
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*/ |
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protected static function calcLimit($string, $limit, $mode) |
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{ |
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if ($mode === static::TRUNCATE_BEFORE) { |
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$limit = mb_strrpos(mb_substr($string, 0, $limit + 1), ' '); |
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} elseif ($mode === static::TRUNCATE_AFTER) { |
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$limit = mb_strpos(mb_substr($string, $limit), ' ') + $limit; |
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} |
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return $limit; |
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} |
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/** |
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* Limpa a string, retirando espaços e tags html |
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* @param string $string |
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* @return string |
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*/ |
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public static function strip($string) |
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{ |
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return trim(strip_tags($string)); |
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} |
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} |
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winframework /
winphp
