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Super simple
Posted: Mon Feb 22, 2010 11:33 am
by z3r0
Or so I thought!
I'm trying to iterate through an array and test if any of the values are NULL or ""
and if they are I just want to insert XXX
I've tried many things and I'm so confused I'd appreciate any help at all.
Re: Super simple
Posted: Mon Feb 22, 2010 11:57 am
by pickle
Code: Select all
foreach($yourArray as $key=>$value)
{
if(is_null($value) or $value === '')
$yourArray[$key] = 'XXX';
}
foreach() makes a new copy of the array before it iterates, so you can't just overwrite $value, you have to explicitly state what you want to change in the original array.
Re: Super simple
Posted: Mon Feb 22, 2010 1:27 pm
by John Cartwright
If you also want to consider 0, false and empty arrays as "empty", then you can replace
Code: Select all
if(is_null($value) or $value === '')
with
Re: Super simple
Posted: Tue Feb 23, 2010 10:02 am
by z3r0
I really appreciate the help thanks when I try and run this it gives me
"Fatal error: Can't use function return value in write context in C:\xampp\htdocs\madlib.php on line 36"
For you though that would be line 4 I think it's the line with "$ yourArray[$key] = 'XXX';"
Again it looks like it should work to me and I guess that's why I'm so frustrated.
I TAKE IT BACK! I should have copied and pasted I was doing "$ yourArray($key) = 'XXX';"
instead of "$ yourArray[$key] = 'XXX';" which does work so thank you.