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run code in 300+ PHP versions simultaneously
<?php $array = [ 'x' => 'Laura Smith', 'y' => 'John. Smith', 'z' => 'John Doe' ]; foreach ($array as $key => $value) { $array[$key] = strstr($value, ' ', true); } var_export($array);

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27.08 ms | 402 KiB | 5 Q