[PHP-DEV] Finding key in a hash...

[Robert Cummings]

I am trying to determine if a key exists in a hash that has been passed
to my function. I couldn't find much information on finding how to do
it, but from greping the source I managed to come up with the following.
Problem is it doesn't work *heh*. All I want to do is check whether the
key exists or not and act appropriately. My code compiles fine, but the
zend_hash_exists() test always returns false. The A facsimile of my code
follows:
-----------------------------------------------------------------------
ZEND_FUNCTION( foofunction ){

    zval **paramHash = NULL;
    zval  *aHash     = NULL;

    if( ZEND_NUM_ARGS() != 1 ||zend_get_parameters_ex( ZEND_NUM_ARGS(), &paramHash ) 
== FAILURE ){
        WRONG_PARAM_COUNT;
    } 

    aHash = *paramHash;

    if( zend_hash_exists( aHash->value.ht, "foo", sizeof( "foo" ) ) ){
        //
        // Do something here.
        //
    }
    else{
        //
        // Do something else here.
        //
    }
}

-----------------------------------------------------------------------
In my PHP code I have the following:
-----------------------------------------------------------------------

$aHash = array();
$aHash['foo'] = 'fee';

foofunction( $aHash );

-----------------------------------------------------------------------

Cheers,
Rob.
-- 
.-----------------.
| Robert Cummings |
:-----------------`----------------------------.
| Webdeployer - Chief PHP and Java Programmer  |
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