3v4l.org

run code in 300+ PHP versions simultaneously
<?php $start = microtime(true); for ($i = 0; $i < 1000000; $i++) { $v = uniqid(); } $elapsed = microtime(true) - $start; echo "uniqid => $elapsed\n"; $start = microtime(true); for ($i = 0; $i < 1000000; $i++) { $v = microtime(); } $elapsed = microtime(true) - $start; echo "microtime => $elapsed\n";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.1.70.0760.04816.71
7.1.60.1290.08319.40
7.1.50.0970.06516.96
7.1.00.0930.14022.39
7.0.200.0960.08616.84
7.0.140.0570.22722.08
7.0.60.0530.19320.05
7.0.50.0470.17717.84
7.0.40.0730.18319.79
7.0.30.1470.13019.73
7.0.20.0770.16719.75
7.0.10.0900.16319.88
7.0.00.0500.17019.81
5.6.280.0700.22720.92
5.6.210.0700.19020.55
5.6.200.0700.17318.16
5.6.190.0630.20720.32
5.6.180.0430.19320.46
5.6.170.0770.17020.43
5.6.160.0370.23320.38
5.6.150.0470.09318.11
5.6.140.0470.20718.12
5.6.130.0530.21017.92
5.6.120.0330.22321.13
5.6.110.0730.18721.14
5.6.100.0830.17321.13
5.6.90.0570.20020.88
5.6.80.0470.18720.35
5.5.350.1930.32320.46
5.5.340.2670.27020.96
5.5.330.2500.25320.78
5.5.320.2130.28020.86
5.5.310.2670.28020.95
5.5.300.2300.30020.85
5.5.290.2000.33720.70
5.5.280.1900.31320.93
5.5.270.2270.27020.82
5.5.260.2230.28020.96
5.5.250.1900.31020.78
5.5.240.1800.31320.29
5.4.450.2500.28019.29
5.4.440.2230.31019.47
5.4.430.2200.29319.31
5.4.420.2200.27019.27
5.4.410.1930.28319.17
5.4.400.2000.30019.16
5.4.390.2330.28319.05
5.4.380.2070.28718.95
5.4.370.2030.35719.18
5.4.360.2170.33319.09
5.4.350.2100.27318.95
5.4.340.1670.34319.09
5.4.320.1970.32019.03
5.4.310.1970.25319.03
5.4.300.2100.27719.05
5.4.290.2370.27318.78
5.4.280.1900.28018.95
5.4.270.2030.29318.82
5.4.260.2430.25018.95
5.4.250.2000.28018.89
5.4.240.2100.28718.77
5.4.230.2430.24019.14
5.4.220.2200.27319.11
5.4.210.2800.21319.02
5.4.200.1970.26018.94
5.4.190.2270.21719.14
5.4.180.1770.26719.08
5.4.170.2500.27718.97
5.4.160.2300.24018.93
5.4.150.2070.31319.09
5.4.140.1870.30716.42
5.4.130.2970.23716.41
5.4.120.1900.27716.40
5.4.110.2570.25716.21
5.4.100.2070.28316.34
5.4.90.1870.25716.37
5.4.80.2300.35016.25
5.4.70.2200.27316.18
5.4.60.1870.33716.32
5.4.50.2300.29316.20
5.4.40.2400.26316.28
5.4.30.2700.23716.30
5.4.20.2700.30016.18
5.4.10.2030.31716.22
5.4.00.2170.29715.80
5.3.290.2430.26314.29
5.3.280.2370.29014.36
5.3.270.2170.24714.38
5.3.260.2030.31014.33
5.3.250.2200.24314.34
5.3.240.2130.30314.45
5.3.230.2400.27714.35
5.3.220.1830.33014.34
5.3.210.1870.35314.34
5.3.200.2470.31714.34
5.3.190.2000.33014.33
5.3.180.2200.37014.32
5.3.170.2100.28314.34
5.3.160.1930.30314.36
5.3.150.1900.31714.33
5.3.140.1700.26014.20
5.3.130.2230.32714.34
5.3.120.2330.31314.23
5.3.110.2200.29714.28
5.3.100.2070.27713.81
5.3.90.1600.34313.66
5.3.80.2030.38013.75
5.3.70.2530.31013.79
5.3.60.1930.33713.85
5.3.50.2430.27013.57
5.3.40.2470.29013.61
5.3.30.2030.32013.68
5.3.20.2400.31713.32
5.3.10.2500.27013.50
5.3.00.1800.33713.37
5.2.170.2300.31310.95
5.2.160.2030.31710.91
5.2.150.2630.26710.89
5.2.140.2270.34310.90
5.2.130.2070.32010.86
5.2.120.1700.34310.89
5.2.110.2200.34310.85
5.2.100.1570.33310.88
5.2.90.1800.32310.89
5.2.80.1630.31010.77
5.2.70.1770.28010.86
5.2.60.1670.29310.80
5.2.50.1900.26310.80
5.2.40.1500.35710.74
5.2.30.1970.30010.78
5.2.20.1900.33010.72
5.2.10.1870.28710.75
5.2.00.2270.31010.53
5.1.60.1900.3209.76
5.1.50.1770.2809.79
5.1.40.1900.3109.75
5.1.30.2070.31710.14
5.1.20.2300.29310.16
5.1.10.2230.2979.83
5.1.00.1630.3209.91
5.0.50.1930.3208.37
5.0.40.2500.3008.25
5.0.30.2100.3507.91
5.0.20.2200.3238.00
5.0.10.2400.2978.02
5.0.00.2100.3538.02
4.4.90.0000.04013.88
4.4.80.0030.03313.88
4.4.70.0030.03713.84
4.4.60.0100.02713.84
4.4.50.0030.01713.91
4.4.40.0030.05313.88
4.4.30.0030.03013.80
4.4.20.0000.03013.87
4.4.10.0070.03713.91
4.4.00.0170.04713.87
4.3.110.0070.03013.88
4.3.100.0100.02013.91
4.3.90.0100.02013.91
4.3.80.0000.03013.90
4.3.70.0070.01713.91
4.3.60.1500.01713.91
4.3.50.1170.01313.85
4.3.40.1070.02713.91
4.3.30.0830.02713.91
4.3.20.0200.02313.91
4.3.10.0800.01713.91
4.3.00.0100.03313.91

preferences:
38.97 ms | 401 KiB | 5 Q