http://www.php.net/manual/en/function.array-key-exists.php
Syl
- Original Message -
From: "R.S. Herhuth" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, August 22, 2002 6:47 AM
Subject: [PHP-WIN] finding out if a key exists in an associative array
&
isset won't work if the array value is set to NULL...
> -Original Message-
> From: Steel [mailto:[EMAIL PROTECTED]]
> Sent: 22 August 2002 13:58
> To: [EMAIL PROTECTED]
> Subject: Re: [PHP-WIN] finding out if a key exists in an associative
> array
>
>
>
:: I'm creating an associative array that creates keys and values for
:: those keys on the fly. Later I need to check and see if the array
:: contains a key before I call it to avoid the dreaded "Undefined
:: Index" error. Is it possible to see if a key exists in an
:: associative array before I
[EMAIL PROTECTED]]
> Sent: 22 August 2002 13:47
> To: [EMAIL PROTECTED]
> Subject: [PHP-WIN] finding out if a key exists in an associative array
>
>
>
>
> I'm creating an associative array that creates keys and values for those
> keys on the fly. Later I need to check
Hi R.S.,
Thursday, August 22, 2002, 4:47:22 PM, I've read:
RSH> it? Kind of like the "isset" to check if a variable exists before you
RSH> call it, and it doesn't error out on you.
I think You still can use isset ;)
ex:
if (isset($array[$key]))
{
do something;
}
Also, if You want to
I'm creating an associative array that creates keys and values for those
keys on the fly. Later I need to check and see if the array contains a
key before I call it to avoid the dreaded "Undefined Index" error. Is
it possible to see if a key exists in an associative array before I call
it? Ki
