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)
8.3.130.0000.00818.25
8.3.120.0060.00320.58
8.3.110.0050.00520.94
8.3.100.0000.00824.06
8.3.90.0130.00326.77
8.3.80.0110.00018.55
8.3.70.0330.00616.58
8.3.60.0300.00616.48
8.3.50.0150.00720.17
8.3.40.0190.01118.00
8.3.30.0190.00720.82
8.3.20.0150.00918.62
8.3.10.0210.00419.69
8.3.00.0240.00419.75
8.2.250.0090.00618.21
8.2.240.0090.00617.10
8.2.230.0050.00322.58
8.2.220.0080.00037.54
8.2.210.0090.00926.77
8.2.200.0000.00816.38
8.2.190.0150.01117.70
8.2.180.0200.00516.60
8.2.170.0230.00520.17
8.2.160.0150.01319.66
8.2.150.0180.00720.72
8.2.140.0190.00721.92
8.2.130.0160.01221.70
8.2.120.0180.00518.21
8.2.110.0140.00819.62
8.2.100.0140.00718.55
8.2.90.0220.00518.22
8.2.80.0190.00618.21
8.2.70.0220.01017.57
8.2.60.0240.00617.60
8.2.50.0160.00618.27
8.2.40.0160.00418.27
8.2.30.0170.00618.04
8.2.20.0130.00718.21
8.2.10.0130.00717.84
8.2.00.0130.00717.85
8.1.300.0090.00020.22
8.1.290.0030.00630.84
8.1.280.0260.00321.71
8.1.270.0270.00518.73
8.1.260.0200.00721.73
8.1.250.0160.01122.48
8.1.240.0200.00519.80
8.1.230.0200.00717.81
8.1.220.0170.00317.67
8.1.210.0190.00418.15
8.1.200.0100.01117.39
8.1.190.0210.00617.12
8.1.180.0190.00817.57
8.1.170.0190.00417.86
8.1.160.0130.00818.00
8.1.150.0170.00218.35
8.1.140.0140.00517.93
8.1.130.0140.00517.76
8.1.120.0110.00817.66
8.1.110.0140.00517.65
8.1.100.0130.00517.61
8.1.90.0150.00417.63
8.1.80.0140.00517.58
8.1.70.0130.00517.61
8.1.60.0130.00717.69
8.1.50.0130.00617.55
8.1.40.0140.00517.70
8.1.30.0150.00617.77
8.1.20.0160.00517.70
8.1.10.0150.00617.70
8.1.00.0150.00417.86
8.0.300.0180.00617.44
8.0.290.0170.00516.94
8.0.280.0120.00717.57
8.0.270.0150.00717.55
8.0.260.0150.00417.34
8.0.250.0130.00517.22
8.0.240.0140.00417.17
8.0.230.0120.00617.17
8.0.220.0140.00417.08
8.0.210.0110.00517.04
8.0.200.0130.00517.22
8.0.190.0150.00417.08
8.0.180.0120.00517.04
8.0.170.0120.00617.04
8.0.160.0120.00617.06
8.0.150.0140.00417.03
8.0.140.0130.00517.05
8.0.130.0110.00716.92
8.0.120.0130.00416.75
8.0.110.0100.00616.74
8.0.100.0100.00516.74
8.0.90.0110.00516.76
8.0.80.0130.00416.81
8.0.70.0110.00516.70
8.0.60.0080.00616.72
8.0.50.0080.00516.73
8.0.30.0120.00416.79
8.0.20.0100.00716.83
8.0.10.0100.00616.84
8.0.00.0090.00717.11
7.4.330.0110.00415.86
7.4.320.0120.00616.90
7.4.300.0120.00516.78
7.4.290.0130.00416.83
7.4.280.0130.00616.81
7.4.270.0100.00516.74
7.4.260.0110.00416.77
7.4.250.0110.00516.56
7.4.240.0110.00616.61
7.4.230.0110.00616.50
7.4.220.0100.00616.62
7.4.210.0090.00616.50
7.4.200.0100.00416.50
7.4.190.0100.00516.57
7.4.180.0100.00416.68
7.4.160.0110.00516.62
7.4.150.0120.00416.59
7.4.140.0110.00516.63
7.4.130.0100.00716.48
7.4.120.0110.00616.46
7.4.110.0100.00616.50
7.4.100.0120.00616.41
7.4.90.0100.00616.38
7.4.80.0120.00616.54
7.4.70.0110.00616.35
7.4.60.0120.00616.36
7.4.50.0100.00716.32
7.4.40.0100.00716.35
7.4.30.0100.00716.45
7.4.20.0110.00616.39
7.4.10.0110.00616.42
7.4.00.0110.00516.31
7.3.330.0130.00416.53
7.3.320.0160.00316.16
7.3.310.0110.00516.35
7.3.300.0120.00516.28
7.3.290.0120.00516.43
7.3.280.0120.00616.30
7.3.270.0130.00616.34
7.3.260.0120.00616.29
7.3.250.0130.00516.28
7.3.240.0130.00616.28
7.3.230.0120.00716.33
7.3.220.0120.00616.24
7.3.210.0130.00616.28
7.3.200.0120.00616.24
7.3.190.0120.00616.20
7.3.180.0110.00716.23
7.3.170.0110.00716.21
7.3.160.0110.00616.23
7.3.150.0110.00616.28
7.3.140.0100.00716.25
7.3.130.0110.00616.24
7.3.120.0100.00716.15
7.3.110.0130.00516.14
7.3.100.0100.00616.16
7.3.90.0100.00616.24
7.3.80.0110.00616.15
7.3.70.0100.00716.20
7.3.60.0110.00616.36
7.3.50.0110.00716.32
7.3.40.0110.00616.22
7.3.30.0100.00616.16
7.3.20.0410.00817.02
7.3.10.0120.00716.95
7.3.00.0140.00716.94
7.2.340.0140.00516.49
7.2.330.0140.00516.39
7.2.320.0120.00616.36
7.2.310.0110.00716.36
7.2.300.0130.00616.40
7.2.290.0130.00516.38
7.2.280.0130.00716.31
7.2.270.0130.00616.35
7.2.260.0120.00616.36
7.2.250.0110.00716.30
7.2.240.0120.00716.41
7.2.230.0110.00716.27
7.2.220.0110.00616.26
7.2.210.0120.00516.22
7.2.200.0110.00816.29
7.2.190.0120.00716.33
7.2.180.0120.00716.28
7.2.170.0100.00816.35
7.2.160.0110.00716.44
7.2.150.0460.00717.13
7.2.140.0130.00717.19
7.2.130.0160.00817.22
7.2.120.0150.00717.18
7.2.110.0230.00817.19
7.2.100.0340.00817.21
7.2.90.0310.00617.16
7.2.80.0310.00717.19
7.2.70.0280.00717.17
7.2.60.0330.00717.09
7.2.50.0300.00717.11
7.2.40.0290.00717.15
7.2.30.0220.00717.13
7.2.20.0250.00717.15
7.2.10.0150.00817.21
7.2.00.0230.00717.20
7.1.330.0140.00616.38
7.1.320.0140.00616.29
7.1.310.0120.00716.30
7.1.300.0120.00716.29
7.1.290.0120.00716.29
7.1.280.0120.00716.26
7.1.270.0130.00616.25
7.1.260.0130.00516.27
7.1.250.0240.00616.15
7.1.240.0160.00616.11
7.1.230.0130.00716.16
7.1.220.0140.00616.16
7.1.210.0380.00616.16
7.1.200.0350.00616.15
7.1.190.0270.00716.16
7.1.180.0170.00616.14
7.1.170.0330.00616.11
7.1.160.0230.00616.15
7.1.150.0150.00716.11
7.1.140.0220.00616.18
7.1.130.0200.00616.15
7.1.120.0210.00616.13
7.1.110.0170.00516.13
7.1.100.0250.00716.16
7.1.90.0260.00716.20
7.1.80.0220.00716.22
7.1.70.0190.00516.08
7.1.60.0220.00617.34
7.1.50.0200.00617.24
7.1.40.0240.00717.25
7.1.30.0290.00617.25
7.1.20.0190.00717.20
7.1.10.0220.00716.11
7.1.00.0200.00716.27
7.0.330.0180.00415.84
7.0.320.0190.00615.86
7.0.310.0270.00615.88
7.0.300.0330.00615.76
7.0.290.0240.00615.88
7.0.280.0130.00615.83
7.0.270.0220.00615.87
7.0.260.0150.00615.89
7.0.250.0280.00615.99
7.0.240.0240.00515.96
7.0.230.0190.00616.04
7.0.220.0200.00715.94
7.0.210.0190.00715.91
7.0.200.0180.00715.89
7.0.190.0190.00615.94
7.0.180.0210.00715.91
7.0.170.0180.00615.93
7.0.160.0190.00515.85
7.0.150.0180.00715.85
7.0.140.0200.00916.09
7.0.130.0180.00715.87
7.0.120.0270.00715.86
7.0.110.0210.00715.86
7.0.100.0210.00715.98
7.0.90.0170.00915.93
7.0.80.0200.00815.88
7.0.70.0190.00815.92
7.0.60.0190.00915.94
7.0.50.0180.00915.91
7.0.40.0240.00715.99
7.0.30.0210.00815.98
7.0.20.0180.00815.92
7.0.10.0200.00815.99
7.0.00.0200.00915.91
5.6.400.0140.00615.86
5.6.390.0130.00715.80
5.6.380.0130.00715.78
5.6.370.0130.00715.73
5.6.360.0140.00615.76
5.6.350.0130.00715.75
5.6.340.0130.00615.74
5.6.330.0130.00715.75
5.6.320.0120.00615.78
5.6.310.0130.00715.79
5.6.300.0130.01116.05
5.6.290.0130.01016.05
5.6.280.0120.01216.21
5.6.270.0130.01016.07
5.6.260.0110.01116.15
5.6.250.0130.01216.13
5.6.240.0130.01016.20
5.6.230.0130.01116.22
5.6.220.0120.01116.21
5.6.210.0130.01216.20
5.6.200.0110.01316.27
5.6.190.0100.01416.23
5.6.180.0130.01216.23
5.6.170.0120.01216.25
5.6.160.0110.01316.21
5.6.150.0100.01416.24
5.6.140.0100.01516.21
5.6.130.0120.01216.21
5.6.120.0130.01216.21
5.6.110.0130.01116.18
5.6.100.0100.01316.18
5.6.90.0120.01116.17
5.6.80.0110.01216.13
5.6.70.0120.01216.19
5.6.60.0130.01016.16
5.6.50.0120.01216.08
5.6.40.0110.01116.10
5.6.30.0110.01316.08
5.6.20.0100.01316.09
5.6.10.0100.01416.09
5.6.00.0130.01116.07
5.5.380.0120.01315.93
5.5.370.0120.01215.93
5.5.360.0120.01215.85
5.5.350.0130.01215.83
5.5.340.0130.01115.88
5.5.330.0140.01115.90
5.5.320.0140.01215.89
5.5.310.0130.01215.88
5.5.300.0130.01115.89
5.5.290.0120.01315.87
5.5.280.0130.01215.89
5.5.270.0130.01015.89
5.5.260.0130.01215.85
5.5.250.0130.01415.84
5.5.240.0130.01215.85
5.5.230.0120.01215.80
5.5.220.0120.01215.83
5.5.210.0120.01315.83
5.5.200.0120.01315.77
5.5.190.0120.01315.77
5.5.180.0130.01115.77
5.5.170.0130.00715.48
5.5.160.0130.01215.75
5.5.150.0120.01215.71
5.5.140.0120.01215.75
5.5.130.0120.01115.70
5.5.120.0130.01215.72
5.5.110.0120.01215.70
5.5.100.0130.01115.80
5.5.90.0130.01115.79
5.5.80.0130.01115.80
5.5.70.0120.01215.80
5.5.60.0130.01115.80
5.5.50.0120.01115.80
5.5.40.0110.01215.78
5.5.30.0130.01115.83
5.5.20.0130.01015.84
5.5.10.0120.01015.76
5.5.00.0120.01115.69
5.4.450.0110.01114.01
5.4.440.0120.01014.00
5.4.430.0100.01114.03
5.4.420.0100.01114.03
5.4.410.0100.01214.00
5.4.400.0120.01013.94
5.4.390.0100.01013.96
5.4.380.0110.01013.95
5.4.370.0120.01013.96
5.4.360.0110.01013.96
5.4.350.0110.01013.97
5.4.340.0110.01113.96
5.4.330.0110.00513.46
5.4.320.0110.01013.98
5.4.310.0100.01013.96
5.4.300.0100.01113.96
5.4.290.0100.01113.96
5.4.280.0100.01013.98
5.4.270.0110.01013.98
5.4.260.0110.01013.96
5.4.250.0100.01013.95
5.4.240.0100.00913.94
5.4.230.0100.01013.87
5.4.220.0110.00913.89
5.4.210.0090.01013.89
5.4.200.0100.01113.89
5.4.190.0090.01213.87
5.4.180.0100.01013.90
5.4.170.0090.01113.92
5.4.160.0100.00913.90
5.4.150.0100.01113.90
5.4.140.0100.01013.71
5.4.130.0090.01113.73
5.4.120.0090.01113.71
5.4.110.0100.01013.76
5.4.100.0110.00813.73
5.4.90.0110.01013.71
5.4.80.0100.00913.76
5.4.70.0100.01013.73
5.4.60.0100.01013.74
5.4.50.0100.01013.71
5.4.40.0100.01013.72
5.4.30.0100.01013.74
5.4.20.0090.01113.74
5.4.10.0090.01213.75
5.4.00.0100.01113.66
5.3.290.0090.01113.84
5.3.280.0090.01213.75
5.3.270.0110.01013.83
5.3.260.0100.01013.81
5.3.250.0110.01113.80
5.3.240.0100.01013.75
5.3.230.0110.01013.77
5.3.220.0110.01013.70
5.3.210.0100.01113.71
5.3.200.0110.00913.71
5.3.190.0100.01013.73
5.3.180.0090.01013.82
5.3.170.0090.01113.82
5.3.160.0100.01013.81
5.3.150.0100.01213.81
5.3.140.0100.01013.77
5.3.130.0100.01113.80
5.3.120.0100.01113.81
5.3.110.0100.01113.81
5.3.100.0100.01013.71
5.3.90.0100.00913.70
5.3.80.0090.01113.65
5.3.70.0100.01013.61
5.3.60.0080.01213.75
5.3.50.0110.01113.65
5.3.40.0120.00913.67
5.3.30.0100.01013.69
5.3.20.0100.01013.65
5.3.10.0100.01013.56
5.3.00.0110.01013.56

preferences:
29.77 ms | 403 KiB | 5 Q