PHP - Variable names as Array Keys

Question

I'm looking for something like the opposite of extract().

Say I have a few variables

$state = "FL";
$city = "Hollywood";
$zip = "33021";

How can I make an array that uses the variables' names as the array keys:

array( "state"=>"FL", "city"=>"Hollywood", "zip"=>"33021" );

Community · Accepted Answer · 2023-11-17 20:42:18Z

9

You should use the compact() function though. Such as:

$state = "FL";
$city = "Hollywood";
$zip = "33021";
$array = compact('state', 'city', 'zip');

Edit: Seems to do exactly what you need, don't know why you don't think you need it. If you're looking for something exactly opposite of extract(), such as taking all available variables and putting them into an array, you can't do that, because PHP would literally take all variables in the current scope and put them into the array. You have to specify which variables somehow.

edited Nov 17, 2023 at 20:42

CommunityBot

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answered Nov 16, 2011 at 4:11

animuson♦

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3 Comments

Greg Guida Over a year ago

I'm not sure if your correct or not.. but you do realize he said explicitly in the question that its NOT compact() right?

David Mann Over a year ago

compact() has a downside, in that most IDEs won't realize there is a hidden reference to those variables.

Player1 Over a year ago

Yeah, compact() is the answer but please avoid it to avoid confusion.

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