Re: finding out if a key exists in an associative array

From: Date: Thu, 22 Aug 2002 12:59:36 +0000
Subject: Re: finding out if a key exists in an associative array
References: 1  Groups: php.windows 
Request: Send a blank email to php-windows+get-15442@lists.php.net to get a copy of this message
:: 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? Kind of like the "isset" to :: check if a variable exists before you call it, and it doesn't error :: out on you. Do you know the key before hand? If so, you can do something like this: if( isset( $array["key"] )) { } If you don't know, you can check out the following page: http://www.php.net/manual/en/function.key.php Chris

« previous php.windows (#15442) next »