THE WORLD'S LARGEST WEB DEVELOPER SITE

PHP Tutorial

PHP HOME PHP Intro PHP Install PHP Syntax PHP Comments PHP Variables PHP Echo / Print PHP Data Types PHP Strings PHP Numbers PHP Constants PHP Operators PHP If...Else...Elseif PHP Switch PHP Loops PHP Functions PHP Arrays PHP Superglobals

PHP Forms

PHP Form Handling PHP Form Validation PHP Form Required PHP Form URL/E-mail PHP Form Complete

PHP Advanced

PHP Date and Time PHP Include PHP File Handling PHP File Open/Read PHP File Create/Write PHP File Upload PHP Cookies PHP Sessions PHP Filters PHP Filters Advanced PHP JSON

PHP OOP

PHP What is OOP PHP Classes/Objects PHP Constructor PHP Destructor PHP Access Modifiers PHP Inheritance PHP Constants PHP Abstract Classes PHP Traits PHP Static Methods PHP Static Properties

MySQL Database

MySQL Database MySQL Connect MySQL Create DB MySQL Create Table MySQL Insert Data MySQL Get Last ID MySQL Insert Multiple MySQL Prepared MySQL Select Data MySQL Where MySQL Order By MySQL Delete Data MySQL Update Data MySQL Limit Data

PHP XML

PHP XML Parsers PHP SimpleXML Parser PHP SimpleXML - Get PHP XML Expat PHP XML DOM

PHP - AJAX

AJAX Intro AJAX PHP AJAX Database AJAX XML AJAX Live Search AJAX Poll

PHP Examples

PHP Examples PHP Quiz PHP Exercises PHP Certificate

PHP Reference

PHP Overview PHP Array PHP Calendar PHP Date PHP Directory PHP Error PHP Filesystem PHP Filter PHP FTP PHP JSON PHP Libxml PHP Mail PHP Math PHP Misc PHP MySQLi PHP Network PHP SimpleXML PHP Stream PHP String PHP Variable Handling PHP XML Parser PHP Zip PHP Timezones

PHP compact() Function

❮ PHP Array Reference

Example

Create an array from variables and their values:

<?php
$firstname = "Peter";
$lastname = "Griffin";
$age = "41";

$result = compact("firstname", "lastname", "age");

print_r($result);
?>
Try it Yourself »

Definition and Usage

The compact() function creates an array from variables and their values.

Note: Any strings that does not match variable names will be skipped.


Syntax

compact(var1, var2...)

Parameter Values

Parameter Description
var1 Required. Can be a string with the variable name, or an array of variables
var2,... Optional. Can be a string with the variable name, or an array of variables. Multiple parameters are allowed.


Technical Details

Return Value: Returns an array with all the variables added to it
PHP Version: 4+
Change log: As of version 7.3 this function issues an E_NOTICE level error if an unset variable is given

More Examples

Example

Using a string that does not match a variable, and an array of variable names:

<?php
$firstname = "Peter";
$lastname = "Griffin";
$age = "41";

$name = array("firstname", "lastname");
$result = compact($name, "location", "age");

print_r($result);
?>
Try it Yourself »

❮ PHP Array Reference