php Programming Glossary: zval

http://stackoverflow.com/questions/10057671/how-foreach-actually-works

assumes that you have some basic knowledge about how zvals work in PHP in particular you should know what a refcount is.. through a lot of ways e.g. in an error handler a cast or a zval destruction. That's why in most cases PHP has to use the internal.. copied but it'll get an addref . Once you do the array the zval will be separated so the array that you are pushing the elements..

Derived class defined later in the same file “does not exist”?

http://stackoverflow.com/questions/12617188/derived-class-defined-later-in-the-same-file-does-not-exist

zend_op fetch_class_opline opline 1 zval parent_name zend_class_entry pce parent_name CONSTANT fetch_class_opline..

How does similar_text work?

http://stackoverflow.com/questions/14136349/how-does-similar-text-work

between two strings PHP_FUNCTION similar_text char t1 t2 zval percent NULL int ac ZEND_NUM_ARGS int sim int t1_len t2_len..

Peculiar Behaviour with PHP (5.3), static inheritance and references

http://stackoverflow.com/questions/3187124/peculiar-behaviour-with-php-5-3-static-inheritance-and-references

The definition of which is static int inherit_static_prop zval p TSRMLS_DC int num_args va_list args const zend_hash_key key.. target key arKey key nKeyLength key h p sizeof zval NULL SUCCESS Z_ADDREF_PP p return ZEND_HASH_APPLY_KEEP Let's.. it will try to share the same actual memory representation zval of the values if they have the same content. inherit_static_prop..

Compare PHP Arrays Using Memory References

http://stackoverflow.com/questions/4110973/compare-php-arrays-using-memory-references

ZEND_GET_MODULE test #endif PHP_FUNCTION getaddress4 zval var1 zval var2 zval var3 zval var4 char r 500 if zend_parse_parameters.. test #endif PHP_FUNCTION getaddress4 zval var1 zval var2 zval var3 zval var4 char r 500 if zend_parse_parameters.. test #endif PHP_FUNCTION getaddress4 zval var1 zval var2 zval var3 zval var4 char r 500 if zend_parse_parameters ZEND_NUM_ARGS..

Why does PHP's foreach advance the pointer of its array (only) once?

http://stackoverflow.com/questions/8263293/why-does-phps-foreach-advance-the-pointer-of-its-array-only-once

ugly artefact Thanks @NickC for anyone else curious about zval and refcount you can read up on the basics here php share.. that no actual copy is done but only the refcount of the zval of array is increased to 2 . On the first iteration The value.. by reference. Due to the reference PHP cannot share the zval with the loop anymore and it needs to be separated hard copied..

What is #<some-number> next to object(someClass) in var_dump of an object? I have an inference. Am I right?

http://stackoverflow.com/questions/8787893/what-is-some-number-next-to-objectsomeclass-in-var-dump-of-an-object-i-ha

is actually # count . Where count is the number of objects zval's for objects irrespective of which class it belongs to that.. object created gets decremented by 1 when a refcount of a zval reaches zero i.e. Garbage Collection. Am I right php php internals.. That number is Z_OBJ_HANDLE_PP struc where struc is a zval which leads to Z_OBJVAL zval .handle which leads to zval .value.obj..

What is the difference between <> and != [duplicate]

http://stackoverflow.com/questions/9671785/what-is-the-difference-between-and

ZEND_OPCODE_HANDLER_ARGS USE_OPLINE zval result EX_T opline result.var .tmp_var SAVE_OPLINE ZVAL_BOOL..