RE: [PHP] Array query - finding the key for a value

> From: Tim Fountain [mailto:tim@tfountain.co.uk] > Sent: Friday, August 16, 2002 7:51 AM > Subject: [PHP] Array query - finding the key for a value > > This may be a silly question, but I'm used to being able to find PHP > functions to do whatever I want, but I can't find one to do this! > > If I have an array like this: > > [0] -> 'apple'; > [1] -> 'pear'; > [2] -> 'orange'; > [3] -> 'apricot'; > > I know I can use in_array() to check whether, say, 'orange' is in the > array; but how do I then find out which index 'orange' is at? http://www.php.net/manual/en/function.array-search.php Note that it will return 0 if the value is in the first element of the array so use ( === ) to determine if it's a key or really not found.