105 lines
2.5 KiB
PHP
105 lines
2.5 KiB
PHP
<?php namespace System;
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class Str {
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/**
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* Convert HTML characters to entities.
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*
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* @param string $value
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* @return string
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*/
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public static function entities($value)
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{
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return htmlentities($value, ENT_QUOTES, Config::get('application.encoding'), false);
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}
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/**
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* Convert a string to lowercase.
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*
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* @param string $value
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* @return string
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*/
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public static function lower($value)
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{
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return function_exists('mb_strtolower') ? mb_strtolower($value, Config::get('application.encoding')) : strtolower($value);
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}
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/**
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* Convert a string to uppercase.
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*
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* @param string $value
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* @return string
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*/
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public static function upper($value)
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{
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return function_exists('mb_strtoupper') ? mb_strtoupper($value, Config::get('application.encoding')) : strtoupper($value);
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}
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/**
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* Convert a string to title case (ucwords).
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*
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* @param string $value
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* @return string
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*/
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public static function title($value)
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{
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return (function_exists('mb_convert_case')) ? mb_convert_case($value, MB_CASE_TITLE, Config::get('application.encoding')) : ucwords(strtolower($value));
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}
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/**
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* Get the length of a string.
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*
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* @param string $value
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* @return int
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*/
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public static function length($value)
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{
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return function_exists('mb_strlen') ? mb_strlen($value, Config::get('application.encoding')) : strlen($value);
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}
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/**
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* Generate a random alpha or alpha-numeric string.
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*
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* Supported types: 'alnum' and 'alpha'.
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*
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* @param int $length
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* @param string $type
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* @return string
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*/
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public static function random($length = 16, $type = 'alnum')
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{
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$value = '';
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$pool_length = strlen($pool = static::pool($type)) - 1;
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for ($i = 0; $i < $length; $i++)
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{
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$value .= $pool[mt_rand(0, $pool_length)];
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}
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return $value;
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}
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/**
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* Get a chracter pool.
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*
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* @param string $type
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* @return string
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*/
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private static function pool($type = 'alnum')
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{
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if ($type == 'alnum')
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{
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return '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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}
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elseif ($type == 'alpha')
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{
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return 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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}
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else
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{
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throw new \Exception("Unrecognized random pool [$type].");
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}
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}
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} |