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run code in 300+ PHP versions simultaneously
<?php function StripExtraSpace($s) { $newstr = ""; for($i = 0; $i < strlen($s); $i++) { $newstr = $newstr . substr($s, $i, 1); if(substr($s, $i, 1) == ' ') while(substr($s, $i + 1, 1) == ' ') $i++; } return $newstr; }

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42.63 ms | 402 KiB | 5 Q