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parsekit: PHP Opcode Analyser Provides a userspace interpretation of the opcodes generated by the Zend engine compiler built into PHP. This extension is meant for development and debug purposes only and contains some code which is potentially non-threadsafe. This extension exports two functions (parsekit_compile_string(string phpcode[, array &errors]) and parsekit_compile_file(string filename[, array &errors])) which will attempt to compile one or more blocks of PHP code into Zend opcodes. The output of these functions is an n-depth hash containing the main block of code's oparray at its root, with function_table and class_table elements to hold any functions or classes declared within the compiled code. In order to accomplish these compilation steps within the context of an active execution, some potentially unsafe methods are used. 1) Compilation modifies EG(function_table) and EG(class_table), after compilation completes, parsekit pops these functions and classes off the end of these stacks. 2) To avoid parse errors in supplied code causing a zend_bailout(), parsekit replaces zend_error_cb with a wrapper which passes E_CORE_ERROR or any error which occurs outside of parsekit_compile_*() onto the original zend_error_cb. If another module which replaced zend_error_cb were to be loaded prior to parsekit, then unloaded after parsekit's startup, but prior to parsekit's shutdown, then the global value zend_error_cb could become populated with an invalid function pointer. The moral of the story: Use this at your own risk. This extension also exports constant entries for all class types, function types, node types, and opcodes. While a name collision would be unexpected, all constants are prefixed with PARSEKIT_ just to be safe. Example: #define ZEND_NOP 0 Exported as: REGISTER_LONG_CONSTANT("PARSEKIT_ZEND_NOP", 0, CONST_CS | CONST_PERSISTENT); For examples on usage, refer to the examples subdirectory in this package.