... Table of Contents . ... Macros for Automatic Global Variable Creation . ... To create new variables that can be seen "from the outside" by the executing script, you need to allocate a new zval container, fill this container with meaningful values, and then introduce it to Zend's internal symbol table. ... ZEND_SET_SYMBOL takes care of introducing the new variable to Zend's symbol table. ... To create new variables in the global scope, use the same method but refer to another symbol table: . ...