note 102543 modified in language.operators.errorcontrol by danbrown

If you're wondering what the performance impact of using the @ operator is, consider this example. Here, the second script (using the @ operator) takes 1.75x as long to execute...almost double the time of the first script. So while yes, there is some overhead, per iteration, we see that the @ operator added only .005 ms per call. Not reason enough, imho, to avoid using the @ operator. <?php function x() { } for ($i = 0; $i < 1000000; $i++) { x(); } ?> real 0m7.617s user 0m6.788s sys 0m0.792s vs <?php function x() { } for ($i = 0; $i < 1000000; $i++) { @x(); } ?> real 0m13.333s user 0m12.437s sys 0m0.836s --was-- If you're wondering what the performance impact of using the @ operator is, consider this example. Here, the second script (using the @ operator) takes 1.75x as long to execute...almost double the time of the first script. So while yes, there is some overhead, per iteration, we see that the @ operator added only .005 ms per call. Not reason enough, imho, to avoid using the @ operator. <?php function x() { } for ($i = 0; $i < 1000000; $i++) { x(); } real 0m7.617s user 0m6.788s sys 0m0.792s vs <?php function x() { } for ($i = 0; $i < 1000000; $i++) { @x(); } real 0m13.333s user 0m12.437s sys 0m0.836s http://php.net/manual/en/language.operators.errorcontrol.php