PHP: compact() function

Last update on August 19 2022 21:50:40 (UTC/GMT +8 hours)

PHP: Create array containing variables and their values

The compact() function is used to create an array from variables and their values.

Note: compact() looks for a variable with that name in the current symbol table and adds it to the output array such that the variable name becomes the key and the contents of the variable become the value for that key.

Version:

(PHP 4 and above)

Syntax:

compact(variable1, variable2...)

Parameter:

Name	Description	Required / Optional	Type
variable1	It can be either a string containing the name of the variable, or an array of variable names.	Required	Mixed*
variable2	Same as variable1.	Optional	Mixed*

*Mixed : Mixed indicates that a parameter may accept multiple (but not necessarily all) types.

Return value:

An array with variables added to it.

Value Type: Array

Example:

<?php
$subject1 = 'Language';
$subject2 = 'Math';
$subject3 = 'Geography';
$subject_list = array('subject2','subject3');
$result = compact('subject1', $subject_list);
print_r($result);
?>

Output:

Array ( [subject1] => Language [subject2] => Math [subject3] => Geography )

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