/**
* Detect the character encoding of a string to be handled by an encoder
* Special-handling for chr(172) and chr(128) to chr(159) which fail to be detected by mb_detect_encoding()
*
* @param string $str
* @param string $charset
* @return string
*/
PHP_METHOD(Phalcon_Escaper, detectEncoding){
zval *str, charset = {}, strict_check = {}, detected = {};
phalcon_fetch_params(0, 1, 0, &str);
/**
* Check if charset is ASCII or ISO-8859-1
*/
phalcon_is_basic_charset(&charset, str);
if (Z_TYPE(charset) == IS_STRING) {
RETURN_CTORW(&charset);
}
/**
* We require mbstring extension here
*/
if (phalcon_function_exists_ex(SL("mb_detect_encoding")) == FAILURE) {
RETURN_NULL();
}
/**
* Strict encoding detection with fallback to non-strict detection.
*/
ZVAL_TRUE(&strict_check);
ZVAL_STRING(&charset, "UTF-32");
/**
* Check for UTF-32 encoding
*/
PHALCON_CALL_FUNCTIONW(&detected, "mb_detect_encoding", str, &charset, &strict_check);
if (zend_is_true(&detected)) {
RETURN_CTORW(&charset);
}
ZVAL_STRING(&charset, "UTF-16");
/**
* Check for UTF-16 encoding
*/
PHALCON_CALL_FUNCTIONW(&detected, "mb_detect_encoding", str, &charset, &strict_check);
if (zend_is_true(&detected)) {
RETURN_CTORW(&charset);
}
ZVAL_STRING(&charset, "UTF-8");
/**
* Check for UTF-8 encoding
*/
PHALCON_CALL_FUNCTIONW(&detected, "mb_detect_encoding", str, &charset, &strict_check);
if (zend_is_true(&detected)) {
RETURN_CTORW(&charset);
}
ZVAL_STRING(&charset, "ISO-8859-1");
/**
* Check for ISO-8859-1 encoding
*/
PHALCON_CALL_FUNCTIONW(&detected, "mb_detect_encoding", str, &charset, &strict_check);
if (zend_is_true(&detected)) {
RETURN_CTORW(&charset);
}
ZVAL_STRING(&charset, "ASCII");
/**
* Check for ASCII encoding
*/
PHALCON_CALL_FUNCTIONW(&detected, "mb_detect_encoding", str, &charset, &strict_check);
if (zend_is_true(&detected)) {
RETURN_CTORW(&charset);
}
/**
* Fallback to global detection
*/
PHALCON_RETURN_CALL_FUNCTIONW("mb_detect_encoding", str);
}
/**
* Detect the character encoding of a string to be handled by an encoder
* Special-handling for chr(172) and chr(128) to chr(159) which fail to be detected by mb_detect_encoding()
*
* @param string $str
* @param string $charset
* @return string
*/
PHP_METHOD(Phalcon_Escaper, detectEncoding){
zval *str, *charset = NULL, *strict_check, *detected = NULL;
PHALCON_MM_GROW();
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &str) == FAILURE) {
RETURN_MM_NULL();
}
/**
* Check if charset is ASCII or ISO-8859-1
*/
PHALCON_INIT_VAR(charset);
phalcon_is_basic_charset(charset, str);
if (Z_TYPE_P(charset) == IS_STRING) {
RETURN_CTOR(charset);
}
/**
* We require mbstring extension here
*/
if (phalcon_function_exists_ex(SS("mb_detect_encoding") TSRMLS_CC) == FAILURE) {
RETURN_MM_NULL();
}
/**
* Strict encoding detection with fallback to non-strict detection.
*/
PHALCON_INIT_VAR(strict_check);
ZVAL_BOOL(strict_check, 1);
PHALCON_INIT_NVAR(charset);
ZVAL_STRING(charset, "UTF-32", 1);
/**
* Check for UTF-32 encoding
*/
PHALCON_INIT_VAR(detected);
PHALCON_CALL_FUNC_PARAMS_3(detected, "mb_detect_encoding", str, charset, strict_check);
if (zend_is_true(detected)) {
RETURN_CTOR(charset);
}
PHALCON_INIT_NVAR(charset);
ZVAL_STRING(charset, "UTF-16", 1);
/**
* Check for UTF-16 encoding
*/
PHALCON_INIT_NVAR(detected);
PHALCON_CALL_FUNC_PARAMS_3(detected, "mb_detect_encoding", str, charset, strict_check);
if (zend_is_true(detected)) {
RETURN_CTOR(charset);
}
PHALCON_INIT_NVAR(charset);
ZVAL_STRING(charset, "UTF-8", 1);
/**
* Check for UTF-8 encoding
*/
PHALCON_INIT_NVAR(detected);
PHALCON_CALL_FUNC_PARAMS_3(detected, "mb_detect_encoding", str, charset, strict_check);
if (zend_is_true(detected)) {
RETURN_CTOR(charset);
}
PHALCON_INIT_NVAR(charset);
ZVAL_STRING(charset, "ISO-8859-1", 1);
/**
* Check for ISO-8859-1 encoding
*/
PHALCON_INIT_NVAR(detected);
PHALCON_CALL_FUNC_PARAMS_3(detected, "mb_detect_encoding", str, charset, strict_check);
if (zend_is_true(detected)) {
RETURN_CTOR(charset);
}
PHALCON_INIT_NVAR(charset);
ZVAL_STRING(charset, "ASCII", 1);
/**
* Check for ASCII encoding
*/
PHALCON_INIT_NVAR(detected);
PHALCON_CALL_FUNC_PARAMS_3(detected, "mb_detect_encoding", str, charset, strict_check);
if (zend_is_true(detected)) {
RETURN_CTOR(charset);
}
/**
* Fallback to global detection
*/
PHALCON_INIT_NVAR(charset);
PHALCON_CALL_FUNC_PARAMS_1(charset, "mb_detect_encoding", str);
RETURN_CCTOR(charset);
}
