PHP: list() function

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

PHP: Assign variables as if they were an array

The list() function is used to assign values to a list of variables. Like array(), this is not really a function, but a language construct. list() is used to assign a list of variables in one operation.

Version:

(PHP 4 and above)

Syntax:

list(varname1, varname2.... varnamen )

Parameters:

Name	Description	Required / Optional	Type
varname1	The first variable to be assigned	Required	Mixed*
varname2..n	Next variable to be assigned	Optional	Mixed*

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

Return value:

The assigned array.

Value Type: Array

Example:

<?php
$w3r1_array = array("php","javascript","asp");
list($x, $y, $z) = $w3r1_array;
echo "We have covered $x,  $y and $z.";
$w3r2_array = array("php","javascript","asp");
list($x, , $z) = $w3r2_array;
echo "We have covered $x and $z and so many other topics";
?>

Output:

We have covered php, javascript and asp.We have covered php and asp and so many other topics

View the example in the browser

Practice here online :

See also

PHP Function Reference

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PHP: Tips of the Day

Filters the collection using the given callback

Example:

<?php
function tips_reject($items, $func)
{
  return array_values(array_diff($items, array_filter($items, $func)));
}

print_r(tips_reject(['Apple', 'Pear', 'Kiwi', 'Banana'], function ($item) {
  return strlen($item) > 4;
}));
?>

Output:

Array
(
    [0] => Pear
    [1] => Kiwi
)