<?php $array = array( "1" => "0", "2" => "5", "5" => "7", "1C" => "0", "2C" => "5", "5C" => "10", "1S" => "15", "5S" => "20" ); Foreach($array as $key => $item){ If(!is_numeric(substr($key, -1))){ $new[substr($key, -1)][substr($key, 0,1)] = $item; }Else{ $new[] = $item; } } Var_dump($new);
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