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<?php $count = 20000; $a = array(); for ($i = 0; $i < $count; $i++) { if ($i % 2) { $a['key_' . $i] = 'ok'; } } $time = microtime(true); $result = 0; for ($i = 0; $i < $count; $i++) { if (isset($a['key_' . $i])) { ++$result; } } $time = microtime(true) - $time; echo number_format($time, 3) . ' seconds and returned ' . $result . "\n";
Output for 5.1.0, 5.2.1 - 5.2.11, 5.2.13 - 5.2.14, 5.2.17, 7.0.5, 7.0.8, 7.0.12, 7.0.18 - 7.0.19, 7.0.21, 7.0.24, 7.0.27, 7.0.29, 7.0.31 - 7.0.33, 7.1.0, 7.1.3 - 7.1.6, 7.1.9 - 7.1.11, 7.1.14, 7.1.17, 7.1.19, 7.1.21, 7.1.24, 7.1.26, 7.2.2, 7.2.6, 7.2.8, 7.2.14, 7.2.23, 7.2.25, 7.3.0, 7.3.8, 7.3.11, 7.3.13, 7.4.0 - 7.4.1
0.004 seconds and returned 10000
Output for 7.0.0 - 7.0.4, 7.0.6 - 7.0.7, 7.0.9, 7.0.11, 7.0.13 - 7.0.17, 7.0.20, 7.0.22 - 7.0.23, 7.0.28, 7.0.30, 7.1.1 - 7.1.2, 7.1.7, 7.1.12 - 7.1.13, 7.1.20, 7.1.22, 7.1.25, 7.1.27 - 7.1.28, 7.1.30 - 7.1.33, 7.2.0, 7.2.3, 7.2.9 - 7.2.11, 7.2.15 - 7.2.16, 7.2.19 - 7.2.21, 7.2.26, 7.3.1 - 7.3.4, 7.3.7, 7.3.10, 7.3.12
0.003 seconds and returned 10000
Output for 7.2.1, 7.2.4 - 7.2.5, 7.2.7, 7.2.12, 7.2.17 - 7.2.18, 7.2.22, 7.2.24, 7.3.5 - 7.3.6, 7.3.9
0.002 seconds and returned 10000
Output for 5.1.1 - 5.1.5, 5.2.12, 5.2.16, 5.5.9, 7.0.10, 7.0.25 - 7.0.26, 7.1.16, 7.1.18, 7.1.23, 7.1.29, 7.2.13
0.005 seconds and returned 10000
Output for 5.1.6, 5.3.2 - 5.3.3, 5.3.5 - 5.3.9, 5.3.12, 5.3.14 - 5.3.15, 5.3.18 - 5.3.19, 5.3.22 - 5.3.23, 5.3.25, 5.3.29, 5.4.3, 5.4.5, 5.4.10, 5.4.12 - 5.4.14, 5.4.16, 5.4.29, 5.4.31, 5.4.37, 5.4.39 - 5.4.40, 5.4.42, 5.4.44, 5.5.0 - 5.5.7, 5.5.12 - 5.5.33, 5.5.35 - 5.5.38, 5.6.0 - 5.6.4, 5.6.7 - 5.6.8, 5.6.11 - 5.6.15, 5.6.17 - 5.6.31, 5.6.33 - 5.6.34, 5.6.36 - 5.6.38, 5.6.40, 7.1.8, 7.1.15
0.006 seconds and returned 10000
Output for 5.3.0 - 5.3.1, 5.3.4, 5.3.11, 5.3.13, 5.3.21, 5.4.1, 5.4.6, 5.4.9, 5.4.11, 5.4.15, 5.4.18 - 5.4.19, 5.4.21 - 5.4.24, 5.5.10 - 5.5.11, 5.6.5 - 5.6.6, 5.6.16, 5.6.32, 5.6.39
0.007 seconds and returned 10000
Output for 5.0.0, 5.2.0, 5.2.15, 5.3.10, 5.3.16 - 5.3.17, 5.3.24, 5.3.27, 5.4.0, 5.4.2, 5.4.4, 5.4.8, 5.4.17, 5.4.27, 5.4.33 - 5.4.36, 5.4.38, 5.4.43, 5.4.45, 5.5.8, 5.5.34, 5.6.9, 5.6.35
0.008 seconds and returned 10000
Output for 4.3.1 - 4.3.2, 4.3.4, 4.3.7, 4.3.11, 4.4.3 - 4.4.5, 4.4.7, 4.4.9, 5.0.2 - 5.0.5, 5.3.28, 5.4.7, 5.4.20, 5.4.25 - 5.4.26, 5.4.28, 5.4.30, 5.4.32, 5.4.41, 5.6.10
0.009 seconds and returned 10000
Output for 4.3.3, 4.3.6, 4.3.8 - 4.3.10, 4.4.0, 4.4.2, 4.4.6, 4.4.8, 5.0.1, 5.3.20, 5.3.26
0.010 seconds and returned 10000
Output for 4.3.5, 4.4.1
0.011 seconds and returned 10000
Output for 4.3.0
0.012 seconds and returned 10000

preferences:
225.99 ms | 401 KiB | 325 Q