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<?php $_1 = "uno"; $_3 = "tres"; $_5 = "cinco"; for ($i = 0; $i < 100; ++$i) { $s = "$_1 dos $_3 cuatro $_5\n"; } for ($i = 0; $i < 100; ++$i) { $s = $_1 . " dos " . $_3 . " cuatro " . $_5 . "\n"; } for ($i = 0; $i < 100; ++$i) { $s = $_1 . ' dos ' . $_3 . ' cuatro ' . $_5 . PHP_EOL; } for ($i = 0; $i < 100; ++$i) { $s = sprintf("%s dos %s cuatro %s\n", $_1, $_3, $_5); }

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