3v4l.org

run code in 300+ PHP versions simultaneously

@ 2016-05-06T04:24:42Z

<?php
$array = array(
    'green' => 'keyword',
    'orange',
    'keyword',
    'black' => array(
        'purple' => 'text',
        'brown',
        'pink' => 'keyword'
    ),
    'white' => array(
        'red',
        'yellow' => 'keyword',
        'blue'
    ),
    'violet',
    'gray'
);

$arr = array();

$str = 'keyword';
$arr[] = array_filter($array, function($var) use ($str) {
			global $arr;
			if(is_array($var)){				
				$arr[] = array_filter($var, function($var2) use ($str) {
					return preg_match("/$str/i", $var2);
				});
			}else{
				return preg_match("/$str/i", $var);
			}			
		});

function getL2Keys($array){
    $result = array();
    foreach($array as $sub) {
        $result = array_merge($result, $sub);
    }        
    return $result;
}

$arr = getL2Keys($arr);
echo '<pre>';
print_r($arr);

Output for git.master, git.master_jit, rfc.property-hooks: <pre>Array ( [pink] => keyword [yellow] => keyword [green] => keyword [0] => keyword )

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

preferences:dark modelive preview

64.53 ms | 401 KiB | 8 Q