<?php $contact_rec = [ "bob" => ["email" => "bob@example.com"], "sara" => ["email" => "sara@example.com"] ]; $contact_rec[0]=""; //The emails of the client foreach($contact as $key => $value) { if($value['email'] != null) $contact_rec[] = $value['email']; } foreach($contact_rec as $key => $value) { $contact_rec[$value] = $value; unset($contact_rec[$key]); } var_dump($contact_rec) ?>
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