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compact — Creates an array containing variables from the current scope.


array compact(var_name[, . . .]);
mixed var_name: Variable name or array of variable names
mixed . . . (optional): Further variable names or arrays of variable names


Associative array


This function performs the opposite job of extract() . Given one or more variable names, it places each named variable into an associative array, with the key of each element being the name of a variable from the current scope and the value of each element being the value of that variable. The array thus constructed is then returned.

Each parameter can be either a string giving the name of a variable to place into the array, or an array of variable names. Arrays can be nested as deeply as you like; compact() recurses over them.

Variables are skipped if they are not set within the scope in which compact() is called.



See also

See also extract()


Example 41. Place variables from the current scope into an array

$foo = 'This is foo';
$bar = 'This is bar';
function compact_tester() {
   global $foo;

   $quux = 'This is quux';

   $new_array = compact('foo', 'bar', array('quux'));
   return $new_array;

$array = compact_tester();

    [foo] => This is foo
    [quux] => This is quux

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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