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<?php $times = 1000*100*10; $var = true; $time1 = microtime(true); for ($i = 0; $i <= $times; $i++) { if ($var) {} } $time1 = microtime(true) - $time1; //echo "Time using '!': $time1\n"; $time2 = microtime(true); for ($i = 0; $i <= $times; $i++) { if ($var === true) {} } $time2 = microtime(true) - $time2; //echo "Time using '===': $time2\n"; if ($time1 > $time2){ $p = (($time1-$time2)/$time2) * 100; //printf("'===' was faster by %.2f percent.", $p); printf("'===' was faster"); } else { $p = (($time2-$time1)/$time1) * 100; //printf("' ' was faster by %.2f percent.", $p); printf("' ' was faster"); }
Output for 4.3.0, 4.3.3 - 4.3.8, 4.3.11 - 4.4.2, 4.4.4 - 4.4.7, 5.0.1 - 5.1.4, 5.2.0, 5.2.4, 5.2.15, 5.3.1, 5.3.3, 5.3.5, 5.3.7, 5.3.10 - 5.3.14, 5.3.18 - 5.3.27, 5.4.0 - 5.4.2, 5.4.4, 5.4.6 - 5.4.12, 5.4.14 - 5.4.19, 5.4.21 - 5.4.29, 5.4.35 - 5.4.37, 5.4.39 - 5.4.42, 5.4.44 - 5.5.8, 5.5.10 - 5.5.13, 5.5.15 - 5.5.22, 5.5.25 - 5.5.33, 5.5.35, 5.5.37 - 5.6.2, 5.6.4 - 5.6.5, 5.6.7, 5.6.9 - 5.6.12, 5.6.14 - 5.6.17, 5.6.19 - 5.6.21, 5.6.23 - 5.6.28, 7.0.1 - 7.0.3, 7.0.6 - 7.0.8, 7.0.14 - 7.1.0
' ' was faster
Output for 4.3.1 - 4.3.2, 4.3.9 - 4.3.10, 4.4.3, 4.4.8 - 5.0.0, 5.1.5 - 5.1.6, 5.2.1 - 5.2.3, 5.2.5 - 5.2.14, 5.2.16 - 5.3.0, 5.3.2, 5.3.4, 5.3.6, 5.3.8 - 5.3.9, 5.3.15 - 5.3.17, 5.3.28 - 5.3.29, 5.4.3, 5.4.5, 5.4.13, 5.4.20, 5.4.30 - 5.4.34, 5.4.38, 5.4.43, 5.5.9, 5.5.14, 5.5.23 - 5.5.24, 5.5.34, 5.5.36, 5.6.3, 5.6.6, 5.6.8, 5.6.13, 5.6.18, 5.6.22, 7.0.0, 7.0.4 - 7.0.5, 7.0.9 - 7.0.10
'===' was faster