... Creating Variables . ... In addition to the macros discussed earlier, a few macros allow easy creation of simple global variables. ... This is somewhat bad practice, but Table 9.12 describes macros that do exactly this task. They don't need any zval allocation; you simply have to supply a variable name and value. ... Table 9.12. Macros for Global Variable Creation . Note: All macros in Table 9.12 create a global variable of the name "name" with the value "value". ... Creates a new string. ...