Online PHP editor | rfc for hL7RH

@ 2020-08-14T05:19:22Z

<?php

$subjects = array(
       array(
           'class' => 'one',
           'sub' => 'music',
       ),
           array(
           'class' => 'one',
           'sub' => array( 'social', 'health', 'science' ),
       ),
          array(
           'class' => 'two',
           'sub' => 'music',
       ),
           
           array(
           'class' => 'one',
           'sub' => 'math',
       )    
    );
    
   $class_sub = array();
    $result = array();
    
    foreach( $subjects as $sub ) {
        if ( ! isset( $class_sub[ $sub['class'] ] ) ) {
            $class_sub[ $sub['class'] ] = $sub['sub'];
        } else {
            if ( is_array( $class_sub[ $sub['class'] ] ) ) {
                $new = array_merge( $class_sub[ $sub['class'] ], is_array($sub['sub']) ?  $sub['sub'] : array($sub['sub']));
            } else {
                $new = array_merge( array($class_sub[ $sub['class'] ]),  is_array($sub['sub']) ?  $sub['sub'] : array($sub['sub']));
            }
            
            $class_sub[ $sub['class'] ] = $new;
        }
    }
    
    foreach( $class_sub as $class => $sub ) {
        $result[] = array(
            'class' => $class,
            'sub' => $sub
        );
    }
    
echo "<pre>"; print_r( $result ); echo "</pre>";

Output for git.master, git.master_jit, rfc.property-hooks: <pre>Array ( [0] => Array ( [class] => one [sub] => Array ( [0] => music [1] => social [2] => health [3] => science [4] => math ) ) [1] => Array ( [class] => two [sub] => music ) ) </pre>

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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