On 1 Nov 2009, at 21:09, Mark Skilbeck <markskilb...@gmail.com> wrote:
Can you explain to me why the following causes a segfault: [code] PHP_FUNCTION(sample_var_a_exists) { if (!zend_hash_exists(EG(active_symbol_table), "a", sizeof("a"))) { RETURN_BOOL(0); } RETURN_BOOL(1); } [/code]Note: the segfault only occurs when the sample_var_a_exists function is called from within a userspace function:[code] $a = ''; var_dump(sample_var_a_exists()); // bool(true) function x() { var_dump(sample_var_a_exists()); // segmentation fault } x()
There is no symbol table as there are no variables. You should check if it's NULL before using zend_hash_exists.
Scott -- PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php
