Convert String into a integer

[isaaczabbix]

Hello
I created a UserParameter that return a String. This string is a subdirectory size but when zabbix capture its value i cant convert it in a integer

[Alexei]

Hello
I created a UserParameter that return a String. This string is a subdirectory size but when zabbix capture its value i cant convert it in a integer
ZABBIX cannot convert non-integer strings to a integer. Give us a sample of the string. Please, include ALL characters!