3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr('foobar', 3, l);

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)
8.3.40.0070.00719.02
8.3.30.0110.00318.84
8.3.20.0000.00720.14
8.3.10.0030.00620.61
8.3.00.0040.00723.65
8.2.170.0140.00322.96
8.2.160.0110.00422.19
8.2.150.0090.00024.18
8.2.140.0000.00724.66
8.2.130.0060.00320.84
8.2.120.0070.00026.35
8.2.110.0120.00921.91
8.2.100.0110.00017.80
8.2.90.0000.00819.08
8.2.80.0000.00817.97
8.2.70.0030.00617.75
8.2.60.0040.00417.93
8.2.50.0030.00518.09
8.2.40.0050.00322.18
8.2.30.0030.00519.50
8.2.20.0070.00017.74
8.2.10.0020.00518.04
8.2.00.0050.00217.99
8.1.270.0100.00322.19
8.1.260.0060.00328.09
8.1.250.0040.00428.09
8.1.240.0060.00323.97
8.1.230.0000.01017.82
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.34
8.1.190.0040.00417.11
8.1.180.0060.00318.10
8.1.170.0050.00318.34
8.1.160.0050.00320.71
8.1.150.0050.00220.50
8.1.140.0060.00319.45
8.1.130.0000.00717.68
8.1.120.0000.00717.39
8.1.110.0000.00717.33
8.1.100.0030.00517.41
8.1.90.0030.00617.29
8.1.80.0070.00017.29
8.1.70.0000.00717.43
8.1.60.0000.00717.42
8.1.50.0030.00517.35
8.1.40.0040.00417.48
8.1.30.0030.00617.46
8.1.20.0000.00717.35
8.1.10.0040.00417.42
8.1.00.0040.00417.46
8.0.300.0000.00718.77
8.0.290.0000.00816.75
8.0.280.0070.00018.41
8.0.270.0000.00717.18
8.0.260.0030.00317.25
8.0.250.0070.00016.91
8.0.240.0070.00017.08
8.0.230.0000.00817.05
8.0.220.0030.00316.85
8.0.210.0000.00716.99
8.0.200.0060.00017.00
8.0.190.0000.00716.99
8.0.180.0040.00416.90
8.0.170.0000.00817.02
8.0.160.0000.00816.84
8.0.150.0060.00316.79
8.0.140.0060.00316.81
8.0.130.0050.00013.34
8.0.120.0050.00316.87
8.0.110.0070.00016.82
8.0.100.0040.00416.99
8.0.90.0040.00416.90
8.0.80.0060.01516.91
8.0.70.0000.00716.99
8.0.60.0040.00417.02
8.0.50.0050.00316.80
8.0.30.0110.00917.13
8.0.20.0100.00917.40
8.0.10.0000.00816.89
8.0.00.0090.00816.70
7.4.330.0030.00316.78
7.4.320.0000.00616.43
7.4.300.0060.00016.51
7.4.290.0040.00416.48
7.4.280.0000.00816.43
7.4.270.0000.00616.53
7.4.260.0040.00416.32
7.4.250.0040.00416.45
7.4.240.0030.00316.57
7.4.230.0000.00816.60
7.4.220.0120.00316.40
7.4.210.0050.01316.47
7.4.200.0030.00316.54
7.4.160.0130.00316.50
7.4.150.0130.01017.40
7.4.140.0100.01117.86
7.4.130.0150.00716.36
7.4.120.0160.00316.59
7.4.110.0030.01416.39
7.4.100.0070.01016.55
7.4.90.0170.00016.63
7.4.80.0140.00419.39
7.4.70.0060.01316.56
7.4.60.0100.00716.44
7.4.50.0070.00716.32
7.4.40.0080.00916.55
7.4.30.0120.00616.38
7.4.10.0060.01215.11
7.4.00.0100.00814.87
7.3.330.0000.00513.11
7.3.320.0030.00213.18
7.3.310.0030.00316.07
7.3.300.0000.00616.21
7.3.290.0030.00316.11
7.3.280.0080.01016.14
7.3.270.0120.01317.40
7.3.260.0160.00816.26
7.3.250.0100.01116.26
7.3.240.0120.00516.40
7.3.230.0080.00816.39
7.3.210.0130.00416.53
7.3.200.0110.00616.28
7.3.190.0080.00816.30
7.3.180.0030.01316.20
7.3.170.0110.00916.24
7.3.160.0070.01316.42
7.3.130.0110.00814.61
7.3.120.0050.01214.59
7.3.110.0100.00614.81
7.3.100.0060.00814.70
7.3.90.0050.00914.81
7.3.80.0060.00614.80
7.3.70.0070.00314.52
7.3.60.0070.00714.68
7.3.50.0080.00814.67
7.3.40.0070.00514.66
7.3.30.0050.00914.73
7.3.20.0070.00316.42
7.3.10.0060.00816.65
7.3.00.0060.00716.45
7.2.330.0100.00716.59
7.2.320.0090.00916.42
7.2.310.0110.01116.30
7.2.300.0110.00716.68
7.2.290.0090.01316.32
7.2.260.0100.00714.92
7.2.250.0060.01014.85
7.2.240.0040.01414.89
7.2.230.0030.01314.95
7.2.220.0060.00914.85
7.2.210.0040.00814.82
7.2.200.0070.00714.68
7.2.190.0040.01114.81
7.2.180.0060.00714.88
7.2.170.0040.00714.95
7.2.160.0030.00914.74
7.2.150.0030.01016.79
7.2.140.0060.00616.60
7.2.130.0060.00516.79
7.2.120.0060.00816.76
7.2.110.0080.00516.76
7.2.100.0040.00916.87
7.2.90.0060.01216.69
7.2.80.0060.00916.77
7.2.70.0090.00816.80
7.2.60.0050.01016.78
7.2.50.0090.00416.75
7.2.40.0060.00816.72
7.2.30.0090.00616.93
7.2.20.0070.00416.58
7.2.10.0070.00816.66
7.2.00.0050.00717.41
7.1.330.0060.00815.77
7.1.320.0060.00715.78
7.1.310.0040.01015.88
7.1.300.0040.00715.58
7.1.290.0060.00615.47
7.1.280.0050.00815.53
7.1.270.0090.00715.71
7.1.260.0050.00715.56
7.1.250.0060.00615.66
7.1.240.0100.00315.84
7.1.230.0070.00415.42
7.1.220.0030.00915.66
7.1.210.0110.00015.73
7.1.200.0030.01115.52
7.1.190.0080.00315.52
7.1.180.0040.00415.39
7.1.170.0030.01015.78
7.1.160.0090.00915.21
7.1.150.0040.01115.81
7.1.140.0060.00315.71
7.1.130.0110.00415.79
7.1.120.0070.00715.87
7.1.110.0080.00815.82
7.1.100.0000.01216.78
7.1.90.0030.00615.47
7.1.80.0030.01015.57
7.1.70.0020.00916.22
7.1.60.0100.01017.48
7.1.50.0040.01316.10
7.1.40.0000.01115.60
7.1.30.0000.01515.76
7.1.20.0070.00715.84
7.1.10.0120.00415.56
7.1.00.0080.04019.07
7.0.330.0080.00815.43
7.0.320.0040.01115.43
7.0.310.0100.00715.18
7.0.300.0030.00915.35
7.0.290.0060.01114.94
7.0.280.0070.00714.92
7.0.270.0030.01015.32
7.0.260.0040.00815.26
7.0.250.0000.01215.41
7.0.240.0060.00615.18
7.0.230.0060.00615.36
7.0.220.0100.00315.19
7.0.210.0070.00415.36
7.0.200.0300.00614.75
7.0.190.0040.01115.42
7.0.180.0040.00415.41
7.0.170.0040.01115.04
7.0.160.0030.00515.02
7.0.150.0040.01115.22
7.0.140.0110.00315.21
7.0.130.0000.01014.98
7.0.120.0070.00715.49
7.0.110.0040.00814.98
7.0.100.0070.00715.13
7.0.90.0070.00715.19
7.0.80.0000.01115.19
7.0.70.0040.00815.16
7.0.60.0170.04317.57
7.0.50.0100.03816.47
7.0.40.0080.04316.83
7.0.30.0280.03816.75
7.0.20.0220.03716.75
7.0.10.0070.02716.72
7.0.00.0030.02316.69
5.6.400.0070.01014.52
5.6.390.0030.01214.48
5.6.380.0040.01114.08
5.6.370.0060.00614.27
5.6.360.0100.00414.02
5.6.350.0100.00314.08
5.6.340.0040.00814.34
5.6.330.0070.00714.40
5.6.320.0070.00714.54
5.6.310.0120.00314.40
5.6.300.0030.00713.93
5.6.290.0060.01013.91
5.6.280.0050.02017.45
5.6.270.0070.00314.09
5.6.260.0030.01314.14
5.6.250.0110.00414.37
5.6.240.0030.00514.06
5.6.230.0030.00514.16
5.6.220.0040.00814.38
5.6.210.0130.04017.33
5.6.200.0020.02416.24
5.6.190.0070.02517.26
5.6.180.0210.02617.32
5.6.170.0180.03117.30
5.6.160.0030.03217.33
5.6.150.0080.04016.21
5.6.140.0030.02516.08
5.6.130.0080.02516.27
5.6.120.0080.03517.63
5.6.110.0100.02317.43
5.6.100.0130.04017.38
5.6.90.0100.03217.53
5.6.80.0050.03517.27
5.6.70.0030.00614.04
5.6.60.0030.00714.04
5.6.50.0030.01014.33
5.6.40.0000.01214.36
5.6.30.0060.00613.74
5.6.20.0060.00913.96
5.6.10.0070.00714.20
5.6.00.0090.00613.88
5.5.380.0070.00314.16
5.5.370.0090.00314.26
5.5.360.0040.00413.70
5.5.350.0110.04017.11
5.5.340.0080.04415.97
5.5.330.0000.04517.08
5.5.320.0230.02917.17
5.5.310.0220.02417.32
5.5.300.0100.02615.89
5.5.290.0070.04215.83
5.5.280.0050.02317.65
5.5.270.0060.05117.48
5.5.260.0070.04517.17
5.5.250.0080.04317.24
5.5.240.0190.03717.16
5.5.230.0030.01014.20
5.5.220.0030.01013.70
5.5.210.0110.00313.81
5.5.200.0030.00714.03
5.5.190.0060.00613.80
5.5.180.0090.00613.93
5.5.170.0060.00614.05
5.5.160.0030.00613.81
5.5.150.0030.00913.74
5.5.140.0030.00614.14
5.5.130.0040.01114.03
5.5.120.0060.00614.08
5.5.110.0000.01413.77
5.5.100.0000.01413.93
5.5.90.0050.00313.91
5.5.80.0070.00314.09
5.5.70.0060.00613.56
5.5.60.0070.00714.25
5.5.50.0040.00414.25
5.5.40.0070.00714.12
5.5.30.0040.00413.84
5.5.20.0030.00914.08
5.5.10.0060.00313.86
5.5.00.0000.01113.97

preferences:
51.42 ms | 400 KiB | 5 Q