3v4l.org

run code in 300+ PHP versions simultaneously
<?php function rev11__kHz_to_us($kHz) { $kHz_real = $kHz * 1E3; $seconds = (1 / $kHz_real); $us = $seconds * 1E6; return $us; } function rev11__us_to_kHz($us) { $us_real = ($us * 1E-6); $freq = (1 / $us_real); $freq_kHz = $freq / 1E3; return $freq_kHz; } var_dump(rev11__kHz_to_us(rev11__us_to_kHz(100)));

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)
8.3.70.0100.01018.31
8.3.60.0120.00918.43
8.3.50.0070.00718.10
8.3.40.0160.00318.28
8.3.30.0090.00618.59
8.3.20.0040.00419.21
8.3.10.0050.00323.66
8.3.00.0000.00720.75
8.2.190.0150.00416.58
8.2.180.0040.01118.54
8.2.170.0150.00022.96
8.2.160.0100.00322.20
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00017.97
8.2.120.0040.00426.35
8.2.110.0070.00319.46
8.2.100.0040.00718.00
8.2.90.0080.00017.47
8.2.80.0130.00017.97
8.2.70.0040.00418.04
8.2.60.0040.00418.09
8.2.50.0040.00418.10
8.2.40.0000.00819.37
8.2.30.0000.00719.25
8.2.20.0000.00918.09
8.2.10.0000.00718.02
8.2.00.0040.00417.64
8.1.280.0120.00325.92
8.1.270.0080.00018.88
8.1.260.0040.00426.35
8.1.250.0100.01028.09
8.1.240.0050.00522.02
8.1.230.0000.01118.95
8.1.220.0030.00617.74
8.1.210.0060.00318.77
8.1.200.0000.00817.35
8.1.190.0000.00817.00
8.1.180.0060.00318.10
8.1.170.0060.00318.44
8.1.160.0040.00418.79
8.1.150.0040.00418.82
8.1.140.0050.00322.05
8.1.130.0030.00520.27
8.1.120.0020.00517.38
8.1.110.0000.00717.41
8.1.100.0030.00417.39
8.1.90.0040.00417.35
8.1.80.0030.00617.34
8.1.70.0070.00017.38
8.1.60.0080.00017.55
8.1.50.0040.00417.57
8.1.40.0050.00317.38
8.1.30.0040.00817.48
8.1.20.0040.00417.66
8.1.10.0000.00917.44
8.1.00.0040.00417.34
8.0.300.0070.00018.77
8.0.290.0000.00816.63
8.0.280.0030.00318.38
8.0.270.0000.00717.16
8.0.260.0040.00418.35
8.0.250.0040.00416.95
8.0.240.0000.00717.00
8.0.230.0070.00016.86
8.0.220.0030.00316.81
8.0.210.0000.00716.85
8.0.200.0040.00416.99
8.0.190.0060.00316.90
8.0.180.0040.00416.87
8.0.170.0060.00316.89
8.0.160.0070.00016.89
8.0.150.0060.00316.81
8.0.140.0040.00416.66
8.0.130.0000.00513.27
8.0.120.0050.00216.85
8.0.110.0000.00716.91
8.0.100.0000.00716.63
8.0.90.0050.00316.63
8.0.80.0100.01016.81
8.0.70.0040.00416.87
8.0.60.0060.00316.70
8.0.50.0040.00416.77
8.0.30.0110.00616.76
8.0.20.0080.01117.44
8.0.10.0040.00417.02
8.0.00.0050.01216.71
7.4.330.0000.00515.55
7.4.320.0040.00416.40
7.4.300.0000.00616.52
7.4.290.0070.00016.53
7.4.280.0050.00316.51
7.4.270.0030.00316.54
7.4.260.0040.00416.63
7.4.250.0030.00616.42
7.4.240.0000.00716.41
7.4.230.0030.00316.34
7.4.220.0080.00016.63
7.4.210.0100.00716.56
7.4.200.0030.00316.53
7.4.160.0090.00716.43
7.4.140.0080.01017.86
7.4.130.0070.01116.55
7.4.120.0100.01016.49
7.4.110.0130.01216.55
7.4.100.0040.01216.27
7.4.90.0160.01616.61
7.4.80.0090.01219.39
7.4.70.0070.01416.67
7.4.60.0090.00616.33
7.4.50.0070.00716.39
7.4.40.0080.01316.54
7.4.00.0080.00414.86
7.3.330.0020.00213.33
7.3.320.0030.00313.23
7.3.310.0060.00316.35
7.3.300.0000.00716.23
7.3.290.0070.00016.38
7.3.280.0090.00616.37
7.3.260.0140.00716.48
7.3.240.0130.00716.48
7.3.230.0090.00616.64
7.3.210.0070.01116.27
7.3.200.0120.00316.33
7.3.190.0100.01016.55
7.3.180.0060.00916.38
7.3.170.0130.01016.62
7.3.160.0030.01316.57
7.2.330.0120.00616.46
7.2.320.0030.02016.64
7.2.310.0070.01016.67
7.2.300.0080.00816.58
7.2.290.0150.00616.52
7.2.110.0900.01014.57
7.2.100.0980.00714.39
7.2.90.1250.01214.76
7.2.80.1290.00314.64
7.2.70.0600.01014.99
7.2.60.0580.00614.81
7.2.50.0560.01014.80
7.2.40.0720.01015.01
7.2.30.0730.00715.07
7.2.20.0300.01115.01
7.2.10.0840.01414.99
7.2.00.0440.01014.64
7.1.230.0670.01013.69
7.1.220.0740.00613.47
7.1.210.1080.00313.96
7.1.200.0920.01814.02
7.1.190.0670.00313.87
7.1.180.0560.00313.87
7.1.170.0730.01013.62
7.1.160.0830.00614.04
7.1.150.0960.01013.78
7.1.140.0580.01013.81
7.1.130.0550.01113.82
7.1.120.0510.01013.80
7.1.110.0550.00413.80
7.1.100.0500.00713.82
7.1.90.0600.01114.08
7.1.80.0590.00613.97
7.1.70.0560.00714.10
7.1.60.0840.00431.93
7.1.50.0930.01031.76
7.1.40.0700.01031.99
7.1.30.0780.01131.95
7.1.20.0780.00631.93
7.1.10.1290.00913.32
7.1.00.0360.01613.83
5.6.380.0090.00614.34

preferences:
42.8 ms | 401 KiB | 5 Q