what are you trying to do?
why do you want to diffirentiate between "99" as a string or as a number?
"Chris Boget" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Sample code:
>
> <script language="php">
>
> $array = array( "one", "two", "three" );
> while( list( $key, $val ) = each( $array )) {
> if( is_string( $key )) {
> echo "Key is a string\n";
>
> }
> echo "Key: $key => $val :Val\n";
>
> }
> echo "\n\n";
>
> $array = array( "SS" => "one", "15" => "two", "19" => "three" );
> while( list( $key, $val ) = each( $array )) {
> if( is_string( $key )) {
> echo "Key is a string\n";
>
> }
> echo "Key: $key => $val :Val\n";
>
> }
>
> </script>
>
> Because of the loose typing in PHP, essentially all arrays
> are associative arrays. Running the script above produces
> the following results:
>
> ------------------------ BEGIN RESULTS
> Key: 0 => one :Val
> Key: 1 => two :Val
> Key: 2 => three :Val
>
>
> Key is a string
> Key: SS => one :Val
> Key: 15 => two :Val
> Key: 19 => three :Val
> ------------------------ END RESULTS
>
> Anyways, I want to be able to pass an array to a function.
> This array can be defined by me as associative (as the
> second array in the sample) or regular (as the first). However,
> I need to be able to tell one from the other in my function.
> As you can see, I can't do it with the is_string() function
> because it doesn't realize that the "15" and the "19" I specify
> as keys in the second declaration are actually strings that I
> added and not actual element numbers.
> Is there some way that I can determine if the keys of an array
> are user defined (ie, a user defined associative array) and not
> the keys PHP defines due to the fact that they are the element
> numbers?
>
> Another, somewhat related issue, notice the funkiness that
> happens when you run the following, similar, script:
>
> <script language="php">
>
> $array = array( "one", "two", "three" );
> while( list( $key, $val ) = each( $array )) {
> if( is_string( $key )) {
> echo "Key is a string\n";
>
> }
> echo "Key: $key => $val :Val\n";
>
> }
> echo "\n\n";
>
> for( $i = 0; $i < count( $array ); $i++ ) {
> echo "Printing element: $i -- " . $array["$i"] . "\n";
>
> }
> echo "\n\n";
>
> $array = array( "SS" => "one", "15" => "two", "three" );
> while( list( $key, $val ) = each( $array )) {
> if( is_string( $key )) {
> echo "Key is a string\n";
>
> }
> echo "Key: $key => $val :Val\n";
>
> }
> echo "\n\n";
>
> for( $i = 0; $i < 20; $i++ ) {
> echo "Printing element: $i -- " . $array["$i"] . "\n";
>
> }
>
> </script>
>
> Any help anyone can provide would be *greatly* appreciated!!
>
> Chris
>
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