note 130572 added to control-structures.foreach

As well as numerically-indexed arrays, nested associative arrays can also be unnested in the foreach() <?php $records = [ ['name' => 'Alice', 'address' => '...'], ['name' => 'Bob', 'address' => '...'], ['name' => 'Chris', 'address' => '...'], ...]; foreach($records as ['name' => $name]) { echo "$name\n"; } foreach($records as ['address' => $address, 'name' => $name]) { echo "$name @ $address\n"; } ?> The usual warnings about undefined array keys will occur if any of the element arrays lack the requested key. One additional detail, the key is still just an ordinary string-valued expression, so... <?php $field = 'address'; foreach($records as [$field => $value]) { echo "$value\n"; } ?> If the value of $field changed within the loop, the new field would be accessed in subsequent iterations. ---- Server IP: 206.189.2.9 Probable Submitter: 122.57.27.239 ---- Manual Page -- https://php.net/manual/en/control-structures.foreach.php Edit -- https://main.php.net/note/edit/130572 Del: integrated -- https://main.php.net/note/delete/130572/integrated Del: useless -- https://main.php.net/note/delete/130572/useless Del: bad code -- https://main.php.net/note/delete/130572/bad+code Del: spam -- https://main.php.net/note/delete/130572/spam Del: non-english -- https://main.php.net/note/delete/130572/non-english Del: in docs -- https://main.php.net/note/delete/130572/in+docs Del: other reasons-- https://main.php.net/note/delete/130572 Reject -- https://main.php.net/note/reject/130572 Search -- https://main.php.net/manage/user-notes.php