3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo strtolower(null);

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)
8.3.60.0090.00916.38
8.3.50.0130.00721.90
8.3.40.0090.00618.75
8.3.30.0130.00522.05
8.3.20.0040.00420.25
8.3.10.0080.00022.13
8.3.00.0080.00022.40
8.2.180.0090.00616.63
8.2.170.0140.00422.96
8.2.160.0030.01022.11
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.01226.16
8.2.120.0090.00019.05
8.2.110.0080.00620.80
8.2.100.0080.00718.98
8.2.90.0180.00418.42
8.2.80.0170.00518.46
8.2.70.0190.01017.67
8.2.60.0210.00417.86
8.2.50.0130.00618.50
8.2.40.0130.00418.53
8.2.30.0150.00518.24
8.2.20.0090.00618.04
8.2.10.0100.00617.98
8.2.00.0080.00617.96
8.1.280.0110.00425.92
8.1.270.0080.00020.23
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0130.00521.27
8.1.230.0110.00818.03
8.1.220.0110.00217.86
8.1.210.0130.00418.54
8.1.200.0060.00917.52
8.1.190.0140.00417.31
8.1.180.0140.00617.80
8.1.170.0150.00218.05
8.1.160.0110.00618.15
8.1.150.0150.00218.59
8.1.140.0120.00518.07
8.1.130.0120.00417.86
8.1.120.0090.00717.70
8.1.110.0120.00517.69
8.1.100.0110.00417.68
8.1.90.0130.00317.66
8.1.80.0110.00517.64
8.1.70.0100.00517.67
8.1.60.0110.00617.75
8.1.50.0100.00517.58
8.1.40.0130.00517.73
8.1.30.0130.00517.81
8.1.20.0130.00517.76
8.1.10.0130.00517.76
8.1.00.0120.00417.92
8.0.300.0130.00517.73
8.0.290.0130.00517.07
8.0.280.0110.00517.77
8.0.270.0120.00717.74
8.0.260.0120.00417.43
8.0.250.0130.00417.28
8.0.240.0130.00317.22
8.0.230.0110.00517.22
8.0.220.0120.00517.12
8.0.210.0110.00417.08
8.0.200.0110.00517.28
8.0.190.0130.00417.13
8.0.180.0110.00517.08
8.0.170.0100.00617.08
8.0.160.0110.00617.11
8.0.150.0120.00417.07
8.0.140.0120.00417.09
8.0.130.0110.00616.94
8.0.120.0130.00316.76
8.0.110.0090.00616.75
8.0.100.0090.00516.75
8.0.90.0100.00516.77
8.0.80.0120.00416.82
8.0.70.0100.00416.71
8.0.60.0070.00616.73
8.0.50.0070.00516.74
8.0.30.0120.00416.80
8.0.20.0090.00716.84
8.0.10.0090.00616.85
8.0.00.0080.00717.13
7.4.330.0110.00315.79
7.4.320.0110.00616.93
7.4.300.0100.00516.80
7.4.290.0120.00416.85
7.4.280.0110.00516.83
7.4.270.0090.00516.75
7.4.260.0100.00516.79
7.4.250.0110.00516.56
7.4.240.0100.00516.61
7.4.230.0100.00516.49
7.4.220.0090.00516.62
7.4.210.0080.00616.49
7.4.200.0090.00316.50
7.4.190.0090.00416.57
7.4.180.0090.00416.68
7.4.160.0100.00416.62
7.4.150.0110.00416.59
7.4.140.0110.00516.63
7.4.130.0090.00716.47
7.4.120.0100.00616.46
7.4.110.0090.00616.50
7.4.100.0100.00616.40
7.4.90.0090.00716.37
7.4.80.0120.00616.53
7.4.70.0110.00616.35
7.4.60.0110.00616.35
7.4.50.0100.00716.31
7.4.40.0090.00716.34
7.4.30.0090.00716.45
7.4.20.0110.00616.38
7.4.10.0100.00616.42
7.4.00.0110.00516.30
7.3.330.0120.00416.53
7.3.320.0150.00316.13
7.3.310.0100.00516.33
7.3.300.0110.00416.26
7.3.290.0110.00516.42
7.3.280.0110.00616.28
7.3.270.0120.00616.33
7.3.260.0110.00716.27
7.3.250.0120.00516.26
7.3.240.0110.00516.26
7.3.230.0110.00716.32
7.3.220.0110.00616.23
7.3.210.0120.00616.27
7.3.200.0110.00616.23
7.3.190.0120.00616.19
7.3.180.0100.00716.22
7.3.170.0110.00716.20
7.3.160.0110.00616.21
7.3.150.0110.00616.26
7.3.140.0090.00716.24
7.3.130.0100.00616.23
7.3.120.0090.00716.14
7.3.110.0120.00516.12
7.3.100.0100.00616.15
7.3.90.0100.00616.23
7.3.80.0100.00616.14
7.3.70.0100.00716.19
7.3.60.0100.00616.35
7.3.50.0100.00616.31
7.3.40.0100.00616.21
7.3.30.0100.00616.14
7.3.20.0420.00816.99
7.3.10.0110.00616.92
7.3.00.0140.00716.92
7.2.340.0130.00416.49
7.2.330.0140.00516.38
7.2.320.0110.00616.35
7.2.310.0110.00716.36
7.2.300.0120.00616.39
7.2.290.0130.00516.37
7.2.280.0120.00716.30
7.2.270.0120.00616.34
7.2.260.0120.00616.35
7.2.250.0110.00716.29
7.2.240.0110.00716.40
7.2.230.0100.00716.26
7.2.220.0110.00616.25
7.2.210.0120.00516.20
7.2.200.0110.00816.28
7.2.190.0110.00716.32
7.2.180.0120.00716.27
7.2.170.0090.00816.34
7.2.160.0100.00816.43
7.2.150.0460.00717.11
7.2.140.0130.00717.17
7.2.130.0150.00817.19
7.2.120.0150.00717.16
7.2.110.0220.00817.17
7.2.100.0340.00817.18
7.2.90.0310.00717.14
7.2.80.0310.00617.17
7.2.70.0280.00617.15
7.2.60.0330.00717.07
7.2.50.0300.00717.08
7.2.40.0290.00717.13
7.2.30.0220.00717.12
7.2.20.0240.00717.13
7.2.10.0140.00817.18
7.2.00.0230.00717.18
7.1.330.0140.00616.37
7.1.320.0130.00616.26
7.1.310.0120.00716.28
7.1.300.0120.00716.27
7.1.290.0120.00716.27
7.1.280.0120.00716.25
7.1.270.0130.00616.23
7.1.260.0130.00516.25
7.1.250.0240.00616.13
7.1.240.0160.00616.08
7.1.230.0130.00716.15
7.1.220.0130.00616.14
7.1.210.0380.00616.13
7.1.200.0350.00616.13
7.1.190.0270.00716.14
7.1.180.0170.00616.12
7.1.170.0330.00716.09
7.1.160.0230.00616.13
7.1.150.0150.00716.09
7.1.140.0220.00616.16
7.1.130.0200.00616.13
7.1.120.0210.00616.12
7.1.110.0160.00516.10
7.1.100.0260.00716.15
7.1.90.0260.00716.19
7.1.80.0220.00716.20
7.1.70.0190.00516.07
7.1.60.0220.00617.36
7.1.50.0200.00617.25
7.1.40.0240.00717.27
7.1.30.0290.00617.26
7.1.20.0190.00717.22
7.1.10.0220.00716.08
7.1.00.0200.00716.25
7.0.330.0180.00415.82
7.0.320.0190.00615.84
7.0.310.0280.00615.86
7.0.300.0340.00615.73
7.0.290.0230.00715.86
7.0.280.0120.00615.80
7.0.270.0220.00615.84
7.0.260.0150.00615.87
7.0.250.0280.00615.97
7.0.240.0240.00515.94
7.0.230.0190.00616.02
7.0.220.0190.00715.92
7.0.210.0190.00715.89
7.0.200.0180.00715.86
7.0.190.0190.00615.92
7.0.180.0210.00715.88
7.0.170.0170.00615.90
7.0.160.0190.00515.82
7.0.150.0180.00715.82
7.0.140.0200.00916.06
7.0.130.0180.00615.84
7.0.120.0270.00615.83
7.0.110.0210.00715.84
7.0.100.0210.00715.96
7.0.90.0170.00915.91
7.0.80.0200.00815.85
7.0.70.0190.00815.90
7.0.60.0190.00915.92
7.0.50.0180.00915.88
7.0.40.0240.00815.97
7.0.30.0210.00815.96
7.0.20.0180.00815.91
7.0.10.0200.00815.97
7.0.00.0200.00915.89
5.6.400.0140.00615.78
5.6.390.0130.00715.77
5.6.380.0130.00715.75
5.6.370.0120.00715.70
5.6.360.0130.00615.73
5.6.350.0130.00715.72
5.6.340.0130.00615.71
5.6.330.0120.00715.72
5.6.320.0120.00615.75
5.6.310.0120.00715.76
5.6.300.0120.01116.04
5.6.290.0130.01016.03
5.6.280.0120.01216.20
5.6.270.0130.01016.06
5.6.260.0110.01116.13
5.6.250.0130.01216.12
5.6.240.0130.01016.18
5.6.230.0120.01216.21
5.6.220.0120.01216.20
5.6.210.0120.01216.18
5.6.200.0110.01316.26
5.6.190.0100.01416.22
5.6.180.0130.01216.22
5.6.170.0120.01216.24
5.6.160.0110.01416.20
5.6.150.0100.01416.23
5.6.140.0100.01516.20
5.6.130.0120.01216.19
5.6.120.0130.01216.20
5.6.110.0120.01216.17
5.6.100.0100.01316.17
5.6.90.0110.01216.16
5.6.80.0100.01216.11
5.6.70.0120.01216.17
5.6.60.0120.01016.15
5.6.50.0120.01216.07
5.6.40.0110.01216.09
5.6.30.0110.01316.06
5.6.20.0100.01316.07
5.6.10.0100.01416.07
5.6.00.0120.01116.06
5.5.380.0120.01315.91
5.5.370.0120.01215.91
5.5.360.0120.01215.83
5.5.350.0120.01215.81
5.5.340.0130.01115.86
5.5.330.0130.01215.88
5.5.320.0130.01215.87
5.5.310.0130.01215.86
5.5.300.0120.01215.86
5.5.290.0120.01315.85
5.5.280.0130.01315.87
5.5.270.0130.01015.86
5.5.260.0130.01215.83
5.5.250.0130.01415.82
5.5.240.0130.01215.83
5.5.230.0120.01215.78
5.5.220.0120.01315.81
5.5.210.0120.01315.80
5.5.200.0120.01315.75
5.5.190.0120.01315.74
5.5.180.0120.01115.75
5.5.170.0130.00615.45
5.5.160.0130.01315.72
5.5.150.0120.01215.68
5.5.140.0110.01215.72
5.5.130.0120.01115.67
5.5.120.0120.01315.70
5.5.110.0110.01215.67
5.5.100.0130.01215.78
5.5.90.0130.01115.77
5.5.80.0120.01215.77
5.5.70.0120.01215.77
5.5.60.0120.01115.78
5.5.50.0120.01115.78
5.5.40.0110.01215.76
5.5.30.0130.01115.80
5.5.20.0130.01115.82
5.5.10.0120.01015.74
5.5.00.0120.01115.66
5.4.450.0110.01113.93
5.4.440.0120.01013.92
5.4.430.0100.01113.95
5.4.420.0100.01113.95
5.4.410.0100.01213.92
5.4.400.0110.01013.86
5.4.390.0100.01013.88
5.4.380.0110.01113.87
5.4.370.0120.01013.88
5.4.360.0110.01013.88
5.4.350.0100.01013.89
5.4.340.0100.01113.88
5.4.330.0110.00513.35
5.4.320.0110.01013.90
5.4.310.0090.01013.88
5.4.300.0100.01113.88
5.4.290.0100.01113.88
5.4.280.0100.01013.90
5.4.270.0110.01013.90
5.4.260.0110.01013.88
5.4.250.0100.01113.87
5.4.240.0100.00913.86
5.4.230.0110.01013.78
5.4.220.0110.00913.81
5.4.210.0090.01013.81
5.4.200.0100.01113.80
5.4.190.0090.01213.79
5.4.180.0100.01013.81
5.4.170.0090.01113.84
5.4.160.0100.00913.82
5.4.150.0090.01113.82
5.4.140.0100.01013.62
5.4.130.0090.01113.64
5.4.120.0090.01113.63
5.4.110.0100.01013.67
5.4.100.0110.00813.64
5.4.90.0100.01013.62
5.4.80.0100.00913.67
5.4.70.0100.01013.64
5.4.60.0100.01013.66
5.4.50.0100.01013.62
5.4.40.0100.01013.63
5.4.30.0090.01013.65
5.4.20.0090.01113.65
5.4.10.0080.01213.66
5.4.00.0090.01113.57
5.3.290.0090.01113.76
5.3.280.0090.01213.67
5.3.270.0100.01013.75
5.3.260.0100.01013.73
5.3.250.0110.01213.71
5.3.240.0100.01013.66
5.3.230.0110.01013.69
5.3.220.0110.01113.61
5.3.210.0100.01113.62
5.3.200.0110.01013.63
5.3.190.0100.01113.64
5.3.180.0090.01013.74
5.3.170.0090.01113.73
5.3.160.0100.01113.72
5.3.150.0100.01213.73
5.3.140.0100.01013.68
5.3.130.0100.01113.71
5.3.120.0100.01113.72
5.3.110.0100.01213.73
5.3.100.0100.01013.63
5.3.90.0100.01013.61
5.3.80.0090.01113.56
5.3.70.0100.01013.51
5.3.60.0080.01213.66
5.3.50.0100.01113.56
5.3.40.0120.00913.58
5.3.30.0100.01013.60
5.3.20.0100.01013.56
5.3.10.0100.01013.46
5.3.00.0110.01013.46

preferences:
56.81 ms | 401 KiB | 5 Q