3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr('dupa.nocase', -7); echo substr('dupa.nocase', 0 , -7);

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)
8.3.60.0070.01416.50
8.3.50.0100.00916.49
8.3.40.0140.00718.66
8.3.30.0110.00718.43
8.3.20.0040.00418.65
8.3.10.0070.01120.41
8.3.00.0080.00017.25
8.2.180.0030.01416.50
8.2.170.0070.00722.96
8.2.160.0070.00722.08
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0070.00019.77
8.2.110.0090.00020.92
8.2.100.0000.01117.59
8.2.90.0080.00019.17
8.2.80.0060.00317.80
8.2.70.0030.00617.50
8.2.60.0040.00417.90
8.2.50.0040.00418.07
8.2.40.0030.00517.97
8.2.30.0040.00417.86
8.2.20.0000.00817.56
8.2.10.0000.00717.52
8.2.00.0030.00617.58
8.1.280.0150.00425.92
8.1.270.0050.00324.66
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0100.00022.33
8.1.230.0040.00721.10
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0030.00617.13
8.1.190.0040.00417.40
8.1.180.0040.00418.10
8.1.170.0050.00318.84
8.1.160.0040.00418.73
8.1.150.0050.00218.50
8.1.140.0000.00917.23
8.1.130.0030.00317.60
8.1.120.0000.00717.22
8.1.110.0000.00717.30
8.1.100.0050.00317.21
8.1.90.0040.00417.30
8.1.80.0070.00017.26
8.1.70.0000.00717.27
8.1.60.0050.00317.47
8.1.50.0080.00017.38
8.1.40.0070.00017.45
8.1.30.0040.00417.50
8.1.20.0000.00917.55
8.1.10.0000.00717.41
8.1.00.0050.00317.27
8.0.300.0060.00319.81
8.0.290.0030.00316.75
8.0.280.0000.00818.38
8.0.270.0080.00017.06
8.0.260.0080.00016.62
8.0.250.0000.00716.94
8.0.240.0060.00216.79
8.0.230.0070.00016.82
8.0.220.0000.00616.75
8.0.210.0030.00316.76
8.0.200.0030.00316.80
8.0.190.0060.00316.68
8.0.180.0040.00416.78
8.0.170.0040.00416.69
8.0.160.0070.00016.81
8.0.150.0060.00316.73
8.0.140.0000.00816.64
8.0.130.0030.00313.19
8.0.120.0000.00716.71
8.0.110.0050.00316.79
8.0.100.0040.00416.80
8.0.90.0040.00416.59
8.0.80.0070.00716.81
8.0.70.0000.00816.63
8.0.60.0040.00416.60
8.0.50.0000.00716.57
8.0.30.0110.00816.92
8.0.20.0130.00516.89
8.0.10.0000.00716.94
8.0.00.0100.01016.48
7.4.330.0030.00312.86
7.4.320.0030.00316.50
7.4.300.0000.00716.32
7.4.290.0030.00316.34
7.4.280.0040.00416.48
7.4.270.0030.00316.36
7.4.260.0000.00613.12
7.4.250.0050.00316.40
7.4.240.0030.00316.37
7.4.230.0000.00716.43
7.4.220.0160.00316.45
7.4.210.0100.00816.42
7.4.200.0030.00316.44
7.4.190.0000.00716.50
7.4.160.0090.00616.30
7.4.150.0070.01116.44
7.4.140.0100.01116.31
7.4.130.0110.01016.46
7.4.120.0080.01016.37
7.4.110.0070.01016.18
7.4.100.0130.00316.29
7.4.90.0070.01016.62
7.4.80.0100.00716.48
7.4.70.0140.00516.30
7.4.60.0090.00916.41
7.4.50.0030.00316.44
7.4.40.0100.00716.13
7.4.30.0100.01016.45
7.4.00.0070.00714.96
7.3.330.0070.00013.02
7.3.320.0080.00012.87
7.3.310.0030.00316.21
7.3.300.0000.00816.11
7.3.290.0070.01316.10
7.3.280.0040.01416.11
7.3.270.0180.00316.34
7.3.260.0100.00816.16
7.3.250.0090.01216.41
7.3.240.0130.01016.34
7.3.230.0090.00916.16
7.3.210.0140.00316.23
7.3.200.0030.01319.39
7.3.190.0060.00916.16
7.3.180.0090.00816.25
7.3.170.0070.01516.39
7.3.160.0060.00916.21
7.3.120.0100.00014.87
7.2.330.0060.00916.53
7.2.320.0100.00616.41
7.2.310.0130.01316.33
7.2.300.0170.00316.38
7.2.290.0080.00916.43
7.2.00.0030.01218.86
7.1.100.0040.00818.25
7.1.70.0100.00317.05
7.1.60.0120.01219.40
7.1.50.0070.01416.80
7.1.00.0030.07722.36
7.0.200.0380.00614.58
7.0.140.0030.07322.15
7.0.120.0030.07022.04
7.0.60.0070.07719.99
7.0.50.0000.04317.95
7.0.40.0070.03717.79
7.0.30.0100.03317.62
7.0.20.0070.04317.68
7.0.10.0030.04017.78
7.0.00.0030.04017.68
5.6.280.0000.07320.79
5.6.210.0170.07020.64
5.6.200.0000.04318.12
5.6.190.0030.04318.11
5.6.180.0070.03318.22
5.6.170.0070.03718.08
5.6.160.0030.04318.22
5.6.150.0030.04318.14
5.6.140.0030.04318.15
5.6.130.0100.03318.11
5.6.120.0100.04018.18
5.6.110.0030.04018.17
5.6.100.0070.04318.19
5.6.90.0000.04318.14
5.6.80.0030.07017.51
5.6.70.0030.05317.59
5.6.60.0100.06717.59
5.6.50.0130.08017.50
5.6.40.0030.06017.54
5.6.30.0070.05317.46
5.6.20.0070.07017.57
5.6.10.0130.04017.55
5.6.00.0030.07717.53
5.5.350.0430.06320.27
5.5.340.0070.03718.03
5.5.330.0070.03717.96
5.5.320.0000.04317.96
5.5.310.0100.03017.95
5.5.300.0000.04017.93
5.5.290.0030.04017.95
5.5.280.0030.04017.91
5.5.270.0070.03717.91
5.5.260.0030.04017.91
5.5.250.0030.04017.80
5.5.240.0030.05717.34
5.5.230.0000.05717.30
5.5.220.0070.07017.31
5.5.210.0030.04317.38
5.5.200.0000.04717.27
5.5.190.0130.04017.23
5.5.180.0030.04717.36
5.5.160.0100.07017.30
5.5.150.0130.05717.32
5.5.140.0070.05717.33
5.5.130.0070.06317.23
5.5.120.0070.04017.31
5.5.110.0100.07317.36
5.5.100.0070.07317.20
5.5.90.0100.03317.21
5.5.80.0070.06317.23
5.5.70.0030.07317.15
5.5.60.0070.07017.12
5.5.50.0100.03717.20
5.5.40.0000.04017.13
5.5.30.0000.04717.25
5.5.20.0000.04317.24
5.5.10.0030.04017.23
5.5.00.0070.03717.14
5.4.450.0070.04719.31
5.4.440.0070.04319.14
5.4.430.0000.04319.44
5.4.420.0070.03719.31
5.4.410.0030.03719.29
5.4.400.0030.04319.07
5.4.390.0070.03318.83
5.4.380.0030.07018.98
5.4.370.0070.04319.09
5.4.360.0030.04318.82
5.4.350.0070.07719.02
5.4.340.0130.06718.96
5.4.320.0100.07318.98
5.4.310.0070.04019.00
5.4.300.0100.07019.06
5.4.290.0070.04319.02
5.4.280.0070.07719.11
5.4.270.0030.05719.13
5.4.260.0030.08318.88
5.4.250.0200.03719.11
5.4.240.0100.04018.97
5.4.230.0100.07019.02
5.4.220.0030.05018.97
5.4.210.0100.06318.96
5.4.200.0070.04319.10
5.4.190.0000.04018.81
5.4.180.0070.04719.02
5.4.170.0070.03719.01
5.4.160.0000.04319.07
5.4.150.0070.07318.80
5.4.140.0000.04716.33
5.4.130.0100.04316.16
5.4.120.0130.05316.26
5.4.110.0130.06716.27
5.4.100.0070.06316.29
5.4.90.0130.06716.24
5.4.80.0070.04016.21
5.4.70.0030.07316.21
5.4.60.0070.04016.25
5.4.50.0070.04016.30
5.4.40.0000.05316.31
5.4.30.0170.06016.26
5.4.20.0070.04016.29
5.4.10.0070.03716.14
5.4.00.0000.04315.61
5.3.290.0100.07314.59
5.3.280.0070.05714.42
5.3.270.0030.04314.52
5.3.260.0030.04314.59
5.3.250.0000.08014.46
5.3.240.0000.04314.54
5.3.230.0030.05314.57
5.3.220.0030.04014.54
5.3.210.0100.05014.50
5.3.200.0130.06714.53
5.3.190.0270.03014.42
5.3.180.0070.04714.36
5.3.170.0100.04014.52
5.3.160.0030.08014.53
5.3.150.0130.04014.50
5.3.140.0030.07314.48
5.3.130.0070.05714.52
5.3.120.0030.07014.50
5.3.110.0000.05014.39
5.3.100.0000.04013.80
5.3.90.0130.05313.99
5.3.80.0100.07313.95
5.3.70.0170.03713.97
5.3.60.0100.04713.77
5.3.50.0170.06313.89
5.3.40.0070.05713.91
5.3.30.0130.05713.99
5.3.20.0030.05713.66
5.3.10.0000.04013.57
5.3.00.0100.06013.54
5.2.170.0130.04311.09
5.2.160.0070.04711.10
5.2.150.0000.06311.14
5.2.140.0030.05011.11
5.2.130.0070.03711.00
5.2.120.0030.06011.04
5.2.110.0070.03710.92
5.2.100.0030.03711.02
5.2.90.0030.03011.06
5.2.80.0070.03011.06
5.2.70.0100.04011.00
5.2.60.0000.05010.87
5.2.50.0070.04710.99
5.2.40.0000.06710.82
5.2.30.0070.03310.79
5.2.20.0070.03010.91
5.2.10.0000.03310.74
5.2.00.0030.03310.72
5.1.60.0070.0479.90
5.1.50.0030.04010.01
5.1.40.0070.0209.94
5.1.30.0030.02710.37
5.1.20.0070.03310.33
5.1.10.0030.04710.20
5.1.00.0000.03710.02
5.0.50.0070.0278.52
5.0.40.0100.0378.36
5.0.30.0000.0678.36
5.0.20.0030.0238.20
5.0.10.0030.0238.20
5.0.00.0000.0338.21
4.4.90.0000.0208.20
4.4.80.0000.0378.20
4.4.70.0030.0138.20
4.4.60.0000.0378.20
4.4.50.0100.0278.20
4.4.40.0030.0508.20
4.4.30.0030.0138.20
4.4.20.0000.0208.20
4.4.10.0000.0178.20
4.4.00.0000.0438.20
4.3.110.0000.0378.20
4.3.100.0070.0278.20
4.3.90.0000.0278.20
4.3.80.0030.0238.20
4.3.70.0000.0208.20
4.3.60.0000.0178.20
4.3.50.0000.0208.20
4.3.40.0070.0538.20
4.3.30.0030.0308.20
4.3.20.0000.0408.20
4.3.10.0000.0338.20
4.3.00.0000.0378.20

preferences:
41.14 ms | 401 KiB | 5 Q