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<?php function f1_virgule() { $a = ''; for($i=0; $i<100000; ++$i) { echo $a,$i,"\n"; } } function f2_point() { $a = ''; for($i=0; $i<100000; ++$i) { echo $a.$i."\n"; } } $start = microtime(true); f2_point(); $stop = microtime(true); $time_point = $stop - $start; $start = microtime(true); f1_virgule(); $stop = microtime(true); $time_virgule = $stop - $start; echo 'time virgule : ' . $time_virgule . "\n"; echo 'time point : ' . $time_point . "\n"; echo 'time virgule > time time_point => ' . ($time_virgule > $time_point); ?>

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