In addition to the macros discussed earlier, a
few macros allow easy creation of simple global variables.
These are nice to know in case you want to introduce global
flags, for example. This is somewhat bad practice, but Table
表33-5
describes macros that do exactly this task. They don't need
any
zval
allocation; you simply have to supply a variable name and
value.
表 33-5Macros for Global Variable Creation
Macro | Description |
SET_VAR_STRING(name, value) | Creates a new string. |
SET_VAR_STRINGL(name, value, length) | Creates a new string of the specified length. This macro is faster than SET_VAR_STRING and also binary-safe. |
SET_VAR_LONG(name, value) | Creates a new long. |
SET_VAR_DOUBLE(name, value) | Creates a new double. |