“Zend_Json Decoding failed: syntax error” when submitting order












1














I recently switched from Apache/PHP 5.5 to a new nginx/PHP 7.0.4 server and now I am getting once in a while a "Decoding failed: Syntax error" when customers try to checkout, apparently when they click the submit order button.



I am unable to reproduce the bug on my side, it happens in about 1 of 50 orders, sometimes also in the customer panel, so it seems to affect only logged users or SSL connections. As I am unable to reproduce the behaviour, I don't know what is happening on the frontend, but customers seem to be able to click the button again, because in most cases the order gets through after 2 error messages. The store is currently running Magento 1.9.2.1 and the server Centos7.



I know that the error is generated in Json.php in the function "decode".



Does anyone have an idea what could cause this and how to debug this? One way would be to log all JSONS with an error and then look at the syntax, but maybe someone already has a solution?



Here is an excerpt of the trace:



#0 /usr/share/nginx/html/app/code/core/Mage/Core/Helper/Data.php(659): Zend_Json::decode('', 1)
#1 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Session.php(133): Mage_Core_Helper_Data->jsonDecode(NULL)
#2 /usr/share/nginx/html/app/code/core/Mage/Core/Model/Abstract.php(226): Mage_Persistent_Model_Session->_afterLoad()
#3 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Session.php(154): Mage_Core_Model_Abstract->load('deleted', 'key')
#4 /usr/share/nginx/html/app/code/core/Mage/Persistent/Helper/Session.php(67): Mage_Persistent_Model_Session->loadByCookieKey()
#5 /usr/share/nginx/html/app/code/core/Mage/Persistent/Helper/Session.php(91): Mage_Persistent_Helper_Session->getSession()
#6 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Observer.php(177): Mage_Persistent_Helper_Session->isPersistent()
#7 /usr/share/nginx/html/app/code/core/Mage/Core/Model/App.php(1357): Mage_Persistent_Model_Observer->emulateQuote(Object(Varien_Event_Observer))
#8 /usr/share/nginx/html/app/code/core/Mage/Core/Model/App.php(1336): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Persistent_Model_Observer), 'emulateQuote', Object(Varien_Event_Observer))
#9 /usr/share/nginx/html/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#10 /usr/share/nginx/html/app/code/core/Mage/Core/Controller/Varien/Action.php(527): Mage::dispatchEvent('controller_acti...', Array)
#11 /usr/share/nginx/html/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()









share|improve this question
























  • I am trying to hunt down the same bug right now: It is happening du to the fact that in Mage_Persistent_Model_Session in _beforeSave() $this->getData() is empty so $info is empty and decoding fails.
    – Michael Leiss
    Apr 7 '16 at 9:58






  • 1




    @MichaelLeiss A user on stackoverflow pointed me into the right direction: PHP 7 throws an exception when trying to decode an empty string, this was not the case in PHP 5.X. A possible solution would be to pass "{}" instead of "".
    – Socrates
    Apr 7 '16 at 13:35
















1














I recently switched from Apache/PHP 5.5 to a new nginx/PHP 7.0.4 server and now I am getting once in a while a "Decoding failed: Syntax error" when customers try to checkout, apparently when they click the submit order button.



I am unable to reproduce the bug on my side, it happens in about 1 of 50 orders, sometimes also in the customer panel, so it seems to affect only logged users or SSL connections. As I am unable to reproduce the behaviour, I don't know what is happening on the frontend, but customers seem to be able to click the button again, because in most cases the order gets through after 2 error messages. The store is currently running Magento 1.9.2.1 and the server Centos7.



I know that the error is generated in Json.php in the function "decode".



Does anyone have an idea what could cause this and how to debug this? One way would be to log all JSONS with an error and then look at the syntax, but maybe someone already has a solution?



Here is an excerpt of the trace:



#0 /usr/share/nginx/html/app/code/core/Mage/Core/Helper/Data.php(659): Zend_Json::decode('', 1)
#1 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Session.php(133): Mage_Core_Helper_Data->jsonDecode(NULL)
#2 /usr/share/nginx/html/app/code/core/Mage/Core/Model/Abstract.php(226): Mage_Persistent_Model_Session->_afterLoad()
#3 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Session.php(154): Mage_Core_Model_Abstract->load('deleted', 'key')
#4 /usr/share/nginx/html/app/code/core/Mage/Persistent/Helper/Session.php(67): Mage_Persistent_Model_Session->loadByCookieKey()
#5 /usr/share/nginx/html/app/code/core/Mage/Persistent/Helper/Session.php(91): Mage_Persistent_Helper_Session->getSession()
#6 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Observer.php(177): Mage_Persistent_Helper_Session->isPersistent()
#7 /usr/share/nginx/html/app/code/core/Mage/Core/Model/App.php(1357): Mage_Persistent_Model_Observer->emulateQuote(Object(Varien_Event_Observer))
#8 /usr/share/nginx/html/app/code/core/Mage/Core/Model/App.php(1336): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Persistent_Model_Observer), 'emulateQuote', Object(Varien_Event_Observer))
#9 /usr/share/nginx/html/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#10 /usr/share/nginx/html/app/code/core/Mage/Core/Controller/Varien/Action.php(527): Mage::dispatchEvent('controller_acti...', Array)
#11 /usr/share/nginx/html/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()









share|improve this question
























  • I am trying to hunt down the same bug right now: It is happening du to the fact that in Mage_Persistent_Model_Session in _beforeSave() $this->getData() is empty so $info is empty and decoding fails.
    – Michael Leiss
    Apr 7 '16 at 9:58






  • 1




    @MichaelLeiss A user on stackoverflow pointed me into the right direction: PHP 7 throws an exception when trying to decode an empty string, this was not the case in PHP 5.X. A possible solution would be to pass "{}" instead of "".
    – Socrates
    Apr 7 '16 at 13:35














1












1








1







I recently switched from Apache/PHP 5.5 to a new nginx/PHP 7.0.4 server and now I am getting once in a while a "Decoding failed: Syntax error" when customers try to checkout, apparently when they click the submit order button.



I am unable to reproduce the bug on my side, it happens in about 1 of 50 orders, sometimes also in the customer panel, so it seems to affect only logged users or SSL connections. As I am unable to reproduce the behaviour, I don't know what is happening on the frontend, but customers seem to be able to click the button again, because in most cases the order gets through after 2 error messages. The store is currently running Magento 1.9.2.1 and the server Centos7.



I know that the error is generated in Json.php in the function "decode".



Does anyone have an idea what could cause this and how to debug this? One way would be to log all JSONS with an error and then look at the syntax, but maybe someone already has a solution?



Here is an excerpt of the trace:



#0 /usr/share/nginx/html/app/code/core/Mage/Core/Helper/Data.php(659): Zend_Json::decode('', 1)
#1 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Session.php(133): Mage_Core_Helper_Data->jsonDecode(NULL)
#2 /usr/share/nginx/html/app/code/core/Mage/Core/Model/Abstract.php(226): Mage_Persistent_Model_Session->_afterLoad()
#3 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Session.php(154): Mage_Core_Model_Abstract->load('deleted', 'key')
#4 /usr/share/nginx/html/app/code/core/Mage/Persistent/Helper/Session.php(67): Mage_Persistent_Model_Session->loadByCookieKey()
#5 /usr/share/nginx/html/app/code/core/Mage/Persistent/Helper/Session.php(91): Mage_Persistent_Helper_Session->getSession()
#6 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Observer.php(177): Mage_Persistent_Helper_Session->isPersistent()
#7 /usr/share/nginx/html/app/code/core/Mage/Core/Model/App.php(1357): Mage_Persistent_Model_Observer->emulateQuote(Object(Varien_Event_Observer))
#8 /usr/share/nginx/html/app/code/core/Mage/Core/Model/App.php(1336): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Persistent_Model_Observer), 'emulateQuote', Object(Varien_Event_Observer))
#9 /usr/share/nginx/html/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#10 /usr/share/nginx/html/app/code/core/Mage/Core/Controller/Varien/Action.php(527): Mage::dispatchEvent('controller_acti...', Array)
#11 /usr/share/nginx/html/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()









share|improve this question















I recently switched from Apache/PHP 5.5 to a new nginx/PHP 7.0.4 server and now I am getting once in a while a "Decoding failed: Syntax error" when customers try to checkout, apparently when they click the submit order button.



I am unable to reproduce the bug on my side, it happens in about 1 of 50 orders, sometimes also in the customer panel, so it seems to affect only logged users or SSL connections. As I am unable to reproduce the behaviour, I don't know what is happening on the frontend, but customers seem to be able to click the button again, because in most cases the order gets through after 2 error messages. The store is currently running Magento 1.9.2.1 and the server Centos7.



I know that the error is generated in Json.php in the function "decode".



Does anyone have an idea what could cause this and how to debug this? One way would be to log all JSONS with an error and then look at the syntax, but maybe someone already has a solution?



Here is an excerpt of the trace:



#0 /usr/share/nginx/html/app/code/core/Mage/Core/Helper/Data.php(659): Zend_Json::decode('', 1)
#1 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Session.php(133): Mage_Core_Helper_Data->jsonDecode(NULL)
#2 /usr/share/nginx/html/app/code/core/Mage/Core/Model/Abstract.php(226): Mage_Persistent_Model_Session->_afterLoad()
#3 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Session.php(154): Mage_Core_Model_Abstract->load('deleted', 'key')
#4 /usr/share/nginx/html/app/code/core/Mage/Persistent/Helper/Session.php(67): Mage_Persistent_Model_Session->loadByCookieKey()
#5 /usr/share/nginx/html/app/code/core/Mage/Persistent/Helper/Session.php(91): Mage_Persistent_Helper_Session->getSession()
#6 /usr/share/nginx/html/app/code/core/Mage/Persistent/Model/Observer.php(177): Mage_Persistent_Helper_Session->isPersistent()
#7 /usr/share/nginx/html/app/code/core/Mage/Core/Model/App.php(1357): Mage_Persistent_Model_Observer->emulateQuote(Object(Varien_Event_Observer))
#8 /usr/share/nginx/html/app/code/core/Mage/Core/Model/App.php(1336): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Persistent_Model_Observer), 'emulateQuote', Object(Varien_Event_Observer))
#9 /usr/share/nginx/html/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#10 /usr/share/nginx/html/app/code/core/Mage/Core/Controller/Varien/Action.php(527): Mage::dispatchEvent('controller_acti...', Array)
#11 /usr/share/nginx/html/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()






magento-1.9 checkout error php-7 json






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share|improve this question













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share|improve this question








edited Oct 18 '17 at 15:40









sv3n

9,64062352




9,64062352










asked Apr 1 '16 at 17:28









Socrates

115211




115211












  • I am trying to hunt down the same bug right now: It is happening du to the fact that in Mage_Persistent_Model_Session in _beforeSave() $this->getData() is empty so $info is empty and decoding fails.
    – Michael Leiss
    Apr 7 '16 at 9:58






  • 1




    @MichaelLeiss A user on stackoverflow pointed me into the right direction: PHP 7 throws an exception when trying to decode an empty string, this was not the case in PHP 5.X. A possible solution would be to pass "{}" instead of "".
    – Socrates
    Apr 7 '16 at 13:35


















  • I am trying to hunt down the same bug right now: It is happening du to the fact that in Mage_Persistent_Model_Session in _beforeSave() $this->getData() is empty so $info is empty and decoding fails.
    – Michael Leiss
    Apr 7 '16 at 9:58






  • 1




    @MichaelLeiss A user on stackoverflow pointed me into the right direction: PHP 7 throws an exception when trying to decode an empty string, this was not the case in PHP 5.X. A possible solution would be to pass "{}" instead of "".
    – Socrates
    Apr 7 '16 at 13:35
















I am trying to hunt down the same bug right now: It is happening du to the fact that in Mage_Persistent_Model_Session in _beforeSave() $this->getData() is empty so $info is empty and decoding fails.
– Michael Leiss
Apr 7 '16 at 9:58




I am trying to hunt down the same bug right now: It is happening du to the fact that in Mage_Persistent_Model_Session in _beforeSave() $this->getData() is empty so $info is empty and decoding fails.
– Michael Leiss
Apr 7 '16 at 9:58




1




1




@MichaelLeiss A user on stackoverflow pointed me into the right direction: PHP 7 throws an exception when trying to decode an empty string, this was not the case in PHP 5.X. A possible solution would be to pass "{}" instead of "".
– Socrates
Apr 7 '16 at 13:35




@MichaelLeiss A user on stackoverflow pointed me into the right direction: PHP 7 throws an exception when trying to decode an empty string, this was not the case in PHP 5.X. A possible solution would be to pass "{}" instead of "".
– Socrates
Apr 7 '16 at 13:35










3 Answers
3






active

oldest

votes


















2














Update: This has been resolved in Inchoo's Magento PHP 7 compatibility module: https://github.com/Inchoo/Inchoo_PHP7






share|improve this answer





















  • github.com/Inchoo/Inchoo_PHP7/issues/29
    – sv3n
    Oct 18 '17 at 15:46



















2















app/code/core/Mage/Core/Helper/Data.php




return Zend_Json::decode($encodedValue, $objectDecodeType);


replace



if(!empty($encodedValue)){
return Zend_Json::decode($encodedValue, $objectDecodeType);
} else {
return Zend_Json::decode('{}', $objectDecodeType);
}





share|improve this answer























  • Worked for me thank you...!!! I was not able to save inventories config changes.
    – Ankur Loriya
    Jul 13 '18 at 14:16



















0














Please try below code




appcodecoreMageCoreHelperData.php line number 657




replace



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
return Zend_Json::decode($encodedValue, $objectDecodeType);
}


with



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
if (empty($encodedValue) || $encodedValue == NULL ) {
return Zend_Json::decode('{}', $objectDecodeType);
} else {
return Zend_Json::decode($encodedValue, $objectDecodeType);
}
}





share|improve this answer























  • I got the same issue while Persistent Shopping Cart enabled from admin. I fixed issue using above code
    – Nimesh Patel
    yesterday













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3 Answers
3






active

oldest

votes








3 Answers
3






active

oldest

votes









active

oldest

votes






active

oldest

votes









2














Update: This has been resolved in Inchoo's Magento PHP 7 compatibility module: https://github.com/Inchoo/Inchoo_PHP7






share|improve this answer





















  • github.com/Inchoo/Inchoo_PHP7/issues/29
    – sv3n
    Oct 18 '17 at 15:46
















2














Update: This has been resolved in Inchoo's Magento PHP 7 compatibility module: https://github.com/Inchoo/Inchoo_PHP7






share|improve this answer





















  • github.com/Inchoo/Inchoo_PHP7/issues/29
    – sv3n
    Oct 18 '17 at 15:46














2












2








2






Update: This has been resolved in Inchoo's Magento PHP 7 compatibility module: https://github.com/Inchoo/Inchoo_PHP7






share|improve this answer












Update: This has been resolved in Inchoo's Magento PHP 7 compatibility module: https://github.com/Inchoo/Inchoo_PHP7







share|improve this answer












share|improve this answer



share|improve this answer










answered Apr 22 '16 at 12:39









Socrates

115211




115211












  • github.com/Inchoo/Inchoo_PHP7/issues/29
    – sv3n
    Oct 18 '17 at 15:46


















  • github.com/Inchoo/Inchoo_PHP7/issues/29
    – sv3n
    Oct 18 '17 at 15:46
















github.com/Inchoo/Inchoo_PHP7/issues/29
– sv3n
Oct 18 '17 at 15:46




github.com/Inchoo/Inchoo_PHP7/issues/29
– sv3n
Oct 18 '17 at 15:46













2















app/code/core/Mage/Core/Helper/Data.php




return Zend_Json::decode($encodedValue, $objectDecodeType);


replace



if(!empty($encodedValue)){
return Zend_Json::decode($encodedValue, $objectDecodeType);
} else {
return Zend_Json::decode('{}', $objectDecodeType);
}





share|improve this answer























  • Worked for me thank you...!!! I was not able to save inventories config changes.
    – Ankur Loriya
    Jul 13 '18 at 14:16
















2















app/code/core/Mage/Core/Helper/Data.php




return Zend_Json::decode($encodedValue, $objectDecodeType);


replace



if(!empty($encodedValue)){
return Zend_Json::decode($encodedValue, $objectDecodeType);
} else {
return Zend_Json::decode('{}', $objectDecodeType);
}





share|improve this answer























  • Worked for me thank you...!!! I was not able to save inventories config changes.
    – Ankur Loriya
    Jul 13 '18 at 14:16














2












2








2







app/code/core/Mage/Core/Helper/Data.php




return Zend_Json::decode($encodedValue, $objectDecodeType);


replace



if(!empty($encodedValue)){
return Zend_Json::decode($encodedValue, $objectDecodeType);
} else {
return Zend_Json::decode('{}', $objectDecodeType);
}





share|improve this answer















app/code/core/Mage/Core/Helper/Data.php




return Zend_Json::decode($encodedValue, $objectDecodeType);


replace



if(!empty($encodedValue)){
return Zend_Json::decode($encodedValue, $objectDecodeType);
} else {
return Zend_Json::decode('{}', $objectDecodeType);
}






share|improve this answer














share|improve this answer



share|improve this answer








edited Oct 18 '17 at 14:24









sv3n

9,64062352




9,64062352










answered Oct 18 '17 at 14:18









Mohd Jabir

211




211












  • Worked for me thank you...!!! I was not able to save inventories config changes.
    – Ankur Loriya
    Jul 13 '18 at 14:16


















  • Worked for me thank you...!!! I was not able to save inventories config changes.
    – Ankur Loriya
    Jul 13 '18 at 14:16
















Worked for me thank you...!!! I was not able to save inventories config changes.
– Ankur Loriya
Jul 13 '18 at 14:16




Worked for me thank you...!!! I was not able to save inventories config changes.
– Ankur Loriya
Jul 13 '18 at 14:16











0














Please try below code




appcodecoreMageCoreHelperData.php line number 657




replace



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
return Zend_Json::decode($encodedValue, $objectDecodeType);
}


with



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
if (empty($encodedValue) || $encodedValue == NULL ) {
return Zend_Json::decode('{}', $objectDecodeType);
} else {
return Zend_Json::decode($encodedValue, $objectDecodeType);
}
}





share|improve this answer























  • I got the same issue while Persistent Shopping Cart enabled from admin. I fixed issue using above code
    – Nimesh Patel
    yesterday


















0














Please try below code




appcodecoreMageCoreHelperData.php line number 657




replace



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
return Zend_Json::decode($encodedValue, $objectDecodeType);
}


with



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
if (empty($encodedValue) || $encodedValue == NULL ) {
return Zend_Json::decode('{}', $objectDecodeType);
} else {
return Zend_Json::decode($encodedValue, $objectDecodeType);
}
}





share|improve this answer























  • I got the same issue while Persistent Shopping Cart enabled from admin. I fixed issue using above code
    – Nimesh Patel
    yesterday
















0












0








0






Please try below code




appcodecoreMageCoreHelperData.php line number 657




replace



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
return Zend_Json::decode($encodedValue, $objectDecodeType);
}


with



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
if (empty($encodedValue) || $encodedValue == NULL ) {
return Zend_Json::decode('{}', $objectDecodeType);
} else {
return Zend_Json::decode($encodedValue, $objectDecodeType);
}
}





share|improve this answer














Please try below code




appcodecoreMageCoreHelperData.php line number 657




replace



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
return Zend_Json::decode($encodedValue, $objectDecodeType);
}


with



public function jsonDecode($encodedValue, $objectDecodeType = Zend_Json::TYPE_ARRAY)
{
if (empty($encodedValue) || $encodedValue == NULL ) {
return Zend_Json::decode('{}', $objectDecodeType);
} else {
return Zend_Json::decode($encodedValue, $objectDecodeType);
}
}






share|improve this answer














share|improve this answer



share|improve this answer








edited yesterday

























answered yesterday









Nimesh Patel

316112




316112












  • I got the same issue while Persistent Shopping Cart enabled from admin. I fixed issue using above code
    – Nimesh Patel
    yesterday




















  • I got the same issue while Persistent Shopping Cart enabled from admin. I fixed issue using above code
    – Nimesh Patel
    yesterday


















I got the same issue while Persistent Shopping Cart enabled from admin. I fixed issue using above code
– Nimesh Patel
yesterday






I got the same issue while Persistent Shopping Cart enabled from admin. I fixed issue using above code
– Nimesh Patel
yesterday




















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