Re: Re: Declaring arrays? Good practice?

What I said was that arrays can be handled two different ways for loops. 1] By assigning the variable prior to the loop [i.e., $new_array= array();] 2] Or, by using inside the loop: $new_array[]= $value Either one works. I've found, when the loop has lots of fancy stuff involving the $new_array, it is useful to go ahead a assign it before starting the loop. Kilbride, James wrote:

<?php $old_array= array('one','two','three','four'); $new_array= array(); foreach($old_array as $value){

    $new_array= $value;

} echo "$new_array"; ?> The result of the echo is "four". Doing the same above with the [] after new_array returns the right result, a new array.(outputs Array). So what exactly where you saying 'Taint so' Al? I'm confused since Jochem's email about how to properly copy an array seems correct. James Kilbride

-----Original Message----- From: Al [mailto:news@ridersite.org] Sent: Wednesday, December 14, 2005 10:47 AM To: php-general@lists.php.net Subject: Re: [PHP] Re: Declaring arrays? Good practice? Jochem Maas wrote:

Al wrote:

However.... For loops: $new_array= array(); foreach($old array as $value){ $new_array= $value: } Otherwise, all you'll get it the last assignment of

$new_array as a

variable, not an array.

which is exactly what you get if yuou run the code above -

after the

foreach loop $new_array will be set to the value of the

last item of

$old_array. regardless of whether you init the var you still have to use the square-bracket notation to add items to the array.

You can also use; foreach($old array as $value){ $new_array[]= $value: } But sometimes, if the expression is a bit fancy in the

loop and you

are using $keys, it is easy to make a mistake. Al.......... Michael Hulse wrote:

Sorry if this question sounds noobish: $foo = array(); // Declare first, good practice. $foo = array('one', 'two', 'three'); Using above as example, is it good to always declare the

array first?

I usually/always declare my arrays first, but sometimes I

get a bit

confused... for example: function give_foo() { $the_foo = array(); // Declare first, good practice. $the_foo = array('one', 'two', 'three'); // Do some stuff here... return $the_foo; } $foo = give_foo(); // Declare $foo also? So, should I declare $foo as array and then give it the

value of the

function? Example: $foo = array(); // Declare first, good practice. $foo = give_foo(); That seems kinda redundant. Thoughts? Sorry if this is a stupid question... I am self-taught, and I am trying to shake all my bad coding habits.

Taint so Jochem. Try it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php