94     public static function checkString(&$var, $check_utf8)  argument
96         if (is_array($var) || is_object($var)) {
99         if (!is_string($var)) {
100             $var = strval($var);
102         if ($check_utf8 && !preg_match('//u', $var)) {
107     public static function checkEnum(&$var)  argument
109       static::checkInt32($var);
112     public static function checkInt32(&$var)  argument
114         if (is_numeric($var)) {
115             $var = intval($var);
121     public static function checkUint32(&$var)  argument
123         if (is_numeric($var)) {
125                 $var = intval($var);
126                 $var |= ((-(($var >> 31) & 0x1)) & ~0xFFFFFFFF);
128                 if (bccomp($var, 0x7FFFFFFF) > 0) {
129                     $var = bcsub($var, "4294967296");
131                 $var = (int) $var;
138     public static function checkInt64(&$var)  argument
140         if (is_numeric($var)) {
142                 $var = intval($var);
144                 if (is_float($var) ||
145                     is_integer($var) ||
146                     (is_string($var) &&
147                          bccomp($var, "9223372036854774784") < 0)) {
148                     $var = number_format($var, 0, ".", "");
156     public static function checkUint64(&$var)  argument
158         if (is_numeric($var)) {
160                 $var = intval($var);
162                 $var = number_format($var, 0, ".", "");
169     public static function checkFloat(&$var)  argument
171         if (is_float($var) || is_numeric($var)) {
172             $var = unpack("f", pack("f", $var))[1];
178     public static function checkDouble(&$var)  argument
180         if (is_float($var) || is_numeric($var)) {
181             $var = floatval($var);
187     public static function checkBool(&$var)  argument
189         if (is_array($var) || is_object($var)) {
192         $var = boolval($var);
195     public static function checkMessage(&$var, $klass, $newClass = null)  argument
197         if (!$var instanceof $klass && !is_null($var)) {
202     public static function checkRepeatedField(&$var, $type, $klass = null)  argument
204         if (!$var instanceof RepeatedField && !is_array($var)) {
207         if (is_array($var)) {
209             foreach ($var as $value) {
214             if ($var->getType() != $type) {
218             if ($var->getType() === GPBType::MESSAGE &&
219                 $var->getClass() !== $klass &&
220                 $var->getLegacyClass() !== $klass) {
224             return $var;
228     public static function checkMapField(&$var, $key_type, $value_type, $klass = null)  argument
230         if (!$var instanceof MapField && !is_array($var)) {
233         if (is_array($var)) {
235             foreach ($var as $key => $value) {
240             if ($var->getKeyType() != $key_type) {
243             if ($var->getValueType() != $value_type) {
246             if ($var->getValueType() === GPBType::MESSAGE &&
247                 $var->getValueClass() !== $klass &&
248                 $var->getLegacyValueClass() !== $klass) {
252             return $var;