/**
* A set of sanitizer methods
*
* @param string $string The string to sanitize
* @param string $type The method
* @param string $default The default value if the string will be empty afterwards
* @return string The sanitized string
*/
static function sanitize($string, $type = 'str', $default = null)
{
$string = stripslashes((string) $string);
$string = urldecode($string);
$string = str::utf8($string);
switch ($type) {
case 'int':
$string = (int) $string;
break;
case 'str':
$string = (string) $string;
break;
case 'array':
$string = (array) $string;
break;
case 'nohtml':
$string = self::unhtml($string);
break;
case 'noxml':
$string = self::unxml($string);
break;
case 'enum':
$string = in_array($string, array('y', 'n')) ? $string : $default;
$string = in_array($string, array('y', 'n')) ? $string : 'n';
break;
case 'checkbox':
$string = $string == 'on' ? 'y' : 'n';
break;
case 'url':
$string = v::url($string) ? $string : '';
break;
case 'email':
$string = v::email($string) ? $string : '';
break;
case 'plain':
$string = str::unxml($string);
$string = str::unhtml($string);
$string = str::trim($string);
break;
case 'lower':
$string = str::lower($string);
break;
case 'upper':
$string = str::upper($string);
break;
case 'words':
$string = str::sanitize($string, 'plain');
$string = preg_replace('/[^\\pL]/u', ' ', $string);
case 'tags':
$string = str::sanitize($string, 'plain');
$string = preg_replace('/[^\\pL\\pN]/u', ' ', $string);
$string = str::trim($string);
case 'nobreaks':
$string = str_replace('\\n', '', $string);
$string = str_replace('\\r', '', $string);
$string = str_replace('\\t', '', $string);
break;
case 'url':
$string = self::urlify($string);
break;
case 'filename':
$string = f::safe_name($string);
break;
}
return trim($string);
}
function languageSetup()
{
// check for activated language support
if (!c::get('lang.support')) {
return false;
}
// get the available languages
$available = c::get('lang.available');
// sanitize the available languages
if (!is_array($available)) {
// switch off language support
c::set('lang.support', false);
return false;
}
// get the raw uri
$uri = uri::raw();
// get the current language code
$code = a::first(explode('/', $uri));
// try to detect the language code if the code is empty
if (empty($code)) {
if (c::get('lang.detect')) {
// detect the current language
$detected = str::split(server::get('http_accept_language'), '-');
$detected = str::trim(a::first($detected));
$detected = !in_array($detected, $available) ? c::get('lang.default') : $detected;
// set the detected code as current code
$code = $detected;
} else {
$code = c::get('lang.default');
}
// go to the default homepage
go(url(false, $code));
}
// http://yourdomain.com/error
// will redirect to http://yourdomain.com/en/error
if ($code == c::get('404')) {
go(url('error', c::get('lang.default')));
}
// validate the code and switch back to the homepage if it is invalid
if (!in_array($code, c::get('lang.available'))) {
go(url());
}
// set the current language
c::set('lang.current', $code);
// mark if this is a translated version or the default version
$code != c::get('lang.default') ? c::set('lang.translated', true) : c::set('lang.translated', false);
// load the additional language files if available
load::language();
}
/**
* Evaluates `$X` as a boolean
*
* In detail:
*
* + If `$X` is an object, calls `$X->toBoolean()` or `$X->toBool()` if they exist.
* + If `$X` is a countable object, returns whether `count($X) > 0`.
*
* @example Number to boolean
* ```php
* var_dump( type::bool(1) ); // Integer
* var_dump( type::bool(0) ); // Zero
* var_dump( type::bool(-1) ); // Negative
* ```
* @example String to boolean
* ```php
* var_dump( type::bool('string') ); // String
* var_dump( type::bool('') ); // Empty String
* ```
* @example Array to boolean
* ```php
* var_dump( type::bool(array ('A', 'B', 'C')) ); // Array
* var_dump( type::bool(array ()) ); // Empty Array
* ```
* @example Semantic evaluation
* ```php
* // A string that is not empty, but "falsy" word is evaluated as false.
* var_dump( type::bool('false') );
* var_dump( type::bool('False') );
* var_dump( type::bool('FALSE') );
* var_dump( type::bool('null') );
* var_dump( type::bool('Null') );
* var_dump( type::bool('NULL') );
* var_dump( type::bool('no') );
* var_dump( type::bool('No') );
* var_dump( type::bool('NO') );
* var_dump( type::bool('off') );
* var_dump( type::bool('Off') );
* var_dump( type::bool('OFF') );
* ```
* @example Methods evaluation
* ```php
* class Truthy {
* function toBool() {
* return true;
* }
* }
*
* class Falsy {
* function toBool() {
* return false;
* }
* }
*
* $obj1 = new Truthy();
* $obj2 = new Falsy();
* var_dump( type::bool($obj1) );
* var_dump( type::bool($obj2) );
* ```
* @param mixed $X A variable to treat as a boolean
* @param boolean $Alt *(optional)* An alternative value to return if evaluation has failed
* @return boolean
*/
static function bool($X, $Alt = false)
{
if (is_bool($X)) {
return $X;
}
if (is_string($X)) {
if (!$X) {
return false;
}
switch (str::trim($X)) {
case 'false':
case 'False':
case 'FALSE':
case 'null':
case 'Null':
case 'NULL':
case 'no':
case 'No':
case 'NO':
case 'off':
case 'Off':
case 'OFF':
return false;
}
} else {
if (is_object($X)) {
if ($X instanceof \Countable) {
return $X->count() > 0;
}
$r = null;
if (is_callable(array($X, 'toBoolean'))) {
$r = $X->toBoolean();
} else {
if (is_callable(array($X, 'toBool'))) {
$r = $X->toBool();
}
}
if (is_bool($r)) {
return $r;
}
}
}
try {
return (bool) $X;
} catch (ErrorException $e) {
return $Alt;
}
}
/**
* Returns whether `$X` contains any visible character
* @example Demonstration
* ```php
* $var1 = " \t \n "; // Spaces, Tab, Linebreak
* $var2 = " \t \n _ "; // Spaces, Tab, Linebreak, and Underscore
* var_dump( str::is_visible($var1) );
* var_dump( str::is_visible($var2) );
* ```
* @param string $X
* @return boolean
*/
static function is_visible($X)
{
return !empty(str::trim($X));
}