3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $infoArray =array( array( 'season'=>'winter 2014', 'link'=>'link1' ), array( 'season'=>'summer 2013', 'link'=>'link2' ), array( 'season'=>'fall 2012', 'link'=>'link3' ), array( 'season'=>'summer 2014', 'link'=>'link4' ), array( 'season'=>'winter 2013', 'link'=>'link5' ) ); $newArray =array(); $innerArray=array(); foreach ($infoArray as $info){ $season = explode(" ", $info['season']); $seasonName = $season[0]; $seasonYear = $season[1]; if (array_key_exists($seasonYear, $newArray)) { $newArray[$seasonYear][$seasonName]=$info['link'] ; } else { $innerArray[$seasonName] = $info['link']; $newArray[$seasonYear]=$innerArray ; } }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0