Scott MacVicar wrote:
On 1 Nov 2009, at 21:09, Mark Skilbeck <markskilb...@gmail.com> wrote:
[snip]
There is no symbol table as there are no variables. You should check if
it's NULL before using zend_hash_exists.
Scott
Hi, Scott. I'm having trouble - I added the check to see if the symbol
table i available, yet it returns false even if I have added variables
within the function:
[code]
PHP_FUNCTION(sample_var_a_exists)
{
if (!EG(active_symbol_table) ||
!zend_hash_exists(EG(active_symbol_table), "a",
sizeof("a"))) {
RETURN_BOOL(0);
}
RETURN_BOOL(1);
}
[/code]
[code]
$a = '';
var_dump(sample_var_a_exists());
function x() {
$a = ''; // Add a symbol to the hash table.
var_dump(sample_var_a_exists()); // Shows bool(false)
}
x();
[/code]
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