3v4l.org

run code in 300+ PHP versions simultaneously
<?php print substr('USP', 0, 2);

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)
8.3.40.0040.01118.52
8.3.30.0000.01418.79
8.3.20.0040.00420.16
8.3.10.0040.00422.05
8.3.00.0040.00422.38
8.2.170.0040.01122.96
8.2.160.0070.00720.95
8.2.150.0000.00824.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0080.00017.50
8.2.110.0090.00021.99
8.2.100.0110.00019.33
8.2.90.0070.00019.09
8.2.80.0030.00619.52
8.2.70.0090.00017.38
8.2.60.0030.00517.80
8.2.50.0000.00818.07
8.2.40.0050.00318.09
8.2.30.0000.00717.86
8.2.20.0040.00417.45
8.2.10.0030.00619.22
8.2.00.0000.00717.41
8.1.270.0040.00422.00
8.1.260.0080.00326.35
8.1.250.0000.01128.09
8.1.240.0090.00023.93
8.1.230.0070.00419.00
8.1.220.0070.00017.74
8.1.210.0080.00018.77
8.1.200.0060.00317.10
8.1.190.0030.00617.38
8.1.180.0030.00618.10
8.1.170.0090.00018.42
8.1.160.0000.00721.89
8.1.150.0030.00518.37
8.1.140.0040.00417.23
8.1.130.0000.00717.66
8.1.120.0000.00817.36
8.1.110.0000.00817.33
8.1.100.0030.00617.30
8.1.90.0030.00317.25
8.1.80.0000.00717.35
8.1.70.0000.00717.32
8.1.60.0040.00417.50
8.1.50.0050.00217.29
8.1.40.0060.00317.36
8.1.30.0020.00517.47
8.1.20.0040.00417.48
8.1.10.0040.00417.30
8.1.00.0000.00917.27
8.0.300.0050.00218.77
8.0.290.0070.00017.15
8.0.280.0030.00318.30
8.0.270.0000.00617.17
8.0.260.0000.00616.80
8.0.250.0060.00016.89
8.0.240.0040.00716.89
8.0.230.0030.00316.74
8.0.220.0030.00316.65
8.0.210.0060.00016.65
8.0.200.0070.00016.86
8.0.190.0040.00416.81
8.0.180.0000.00816.79
8.0.170.0080.00016.69
8.0.160.0000.00716.79
8.0.150.0040.00416.70
8.0.140.0070.00316.70
8.0.130.0030.00313.16
8.0.120.0000.00716.70
8.0.110.0040.00416.58
8.0.100.0040.00416.70
8.0.90.0000.00816.80
8.0.80.0000.02116.73
8.0.70.0040.00416.73
8.0.60.0030.00316.53
8.0.50.0050.00216.54
8.0.30.0130.00617.02
8.0.20.0100.00917.40
8.0.10.0070.00016.83
8.0.00.0080.00816.75
7.4.330.0050.00015.00
7.4.320.0040.00416.41
7.4.300.0000.00716.49
7.4.290.0000.00716.37
7.4.280.0070.00016.35
7.4.270.0030.00316.48
7.4.260.0030.00716.34
7.4.250.0000.00816.26
7.4.240.0010.00616.29
7.4.230.0000.00716.11
7.4.220.0070.01316.48
7.4.210.0070.00816.39
7.4.200.0070.00016.43
7.4.190.0000.00716.59
7.4.160.0080.00816.32
7.4.150.0120.00417.40
7.4.140.0090.01017.86
7.4.130.0090.01016.42
7.4.120.0090.00816.36
7.4.110.0000.02316.29
7.4.100.0140.00316.32
7.4.90.0120.00616.59
7.4.80.0110.00619.39
7.4.70.0060.01016.32
7.4.60.0160.00416.23
7.4.50.0000.00816.07
7.4.40.0100.01022.77
7.4.30.0100.00716.57
7.4.10.0060.01214.81
7.4.00.0080.00714.72
7.3.330.0030.00313.04
7.3.320.0000.00512.99
7.3.310.0070.00016.11
7.3.300.0000.00716.16
7.3.290.0090.00616.14
7.3.280.0110.00816.08
7.3.270.0060.01217.40
7.3.260.0030.01316.40
7.3.250.0080.01016.37
7.3.240.0100.00616.29
7.3.230.0040.01316.39
7.3.210.0100.00616.41
7.3.200.0060.01319.39
7.3.190.0200.00316.37
7.3.180.0090.00616.16
7.3.170.0030.01516.50
7.3.160.0170.00316.18
7.3.130.0070.01014.65
7.3.120.0080.00814.57
7.3.110.0090.00614.80
7.3.100.0030.01014.48
7.3.90.0080.00614.72
7.3.80.0070.00814.69
7.3.70.0020.01014.60
7.3.60.0050.00914.70
7.3.50.0040.01114.73
7.3.40.0030.00814.49
7.3.30.0050.01014.45
7.3.20.0070.00616.62
7.3.10.0110.00216.54
7.3.00.0050.00716.50
7.2.330.0190.00016.53
7.2.320.0150.00916.51
7.2.310.0040.01516.48
7.2.300.0200.00316.61
7.2.290.0060.01616.21
7.2.260.0100.01014.50
7.2.250.0070.01015.02
7.2.240.0070.01114.83
7.2.230.0090.00614.82
7.2.220.0070.00814.75
7.2.210.0090.00614.90
7.2.200.0080.00214.86
7.2.190.0050.01114.80
7.2.180.0040.01214.84
7.2.170.0080.00514.96
7.2.160.0000.01314.88
7.2.150.0090.00316.62
7.2.140.0100.00416.57
7.2.130.0060.00716.74
7.2.120.0050.00716.74
7.2.110.0030.01016.62
7.2.100.0060.00716.74
7.2.90.0040.00816.61
7.2.80.0070.00916.78
7.2.70.0050.00916.83
7.2.60.0030.01016.74
7.2.50.0050.00616.82
7.2.40.0100.00616.86
7.2.30.0070.00616.78
7.2.20.0070.00716.75
7.2.10.0050.01116.61
7.2.00.0050.00617.60
7.1.330.0090.00515.69
7.1.320.0030.00915.53
7.1.310.0080.00715.79
7.1.300.0050.01115.65
7.1.290.0040.00815.66
7.1.280.0060.00715.58
7.1.270.0100.00515.55
7.1.260.0060.00815.62
7.1.250.0050.00715.48
7.1.240.0000.01315.49
7.1.230.0040.00415.55
7.1.220.0090.00615.60
7.1.210.0090.00615.67
7.1.200.0090.00315.54
7.1.190.0040.00815.37
7.1.180.0000.01115.58
7.1.170.0030.00915.67
7.1.160.0110.00315.73
7.1.150.0030.00915.48
7.1.140.0040.01115.43
7.1.130.0090.00615.73
7.1.120.0000.00815.73
7.1.110.0060.00615.56
7.1.100.0020.01316.79
7.1.90.0120.00015.45
7.1.80.0110.00415.37
7.1.70.0070.00516.14
7.1.60.0090.00517.78
7.1.50.0070.01016.37
7.1.40.0040.01215.66
7.1.30.0030.00515.51
7.1.20.0000.00815.70
7.1.10.0070.00715.54
7.1.00.0000.04819.00
7.0.330.0000.00815.06
7.0.320.0000.00915.28
7.0.310.0100.00715.22
7.0.300.0060.00915.21
7.0.290.0000.01115.29
7.0.280.0070.00715.43
7.0.270.0070.00315.26
7.0.260.0030.01415.13
7.0.250.0070.00715.46
7.0.240.0070.00715.09
7.0.230.0060.00615.43
7.0.220.0110.00015.30
7.0.210.0050.00515.42
7.0.200.0040.00615.96
7.0.190.0060.00815.18
7.0.180.0040.01115.05
7.0.170.0000.01015.46
7.0.160.0100.00315.21
7.0.150.0030.00915.10
7.0.140.0020.04418.76
7.0.130.0040.01214.89
7.0.120.0030.00715.10
7.0.110.0090.00615.41
7.0.100.0120.01717.69
7.0.90.0260.03817.58
7.0.80.0100.03717.52
7.0.70.0210.04317.62
7.0.60.0070.04017.53
7.0.50.0070.03617.79
7.0.40.0050.05016.56
7.0.30.0030.04816.69
7.0.20.0030.03016.73
7.0.10.0050.04016.54
7.0.00.0120.04116.72
5.6.400.0060.00614.41
5.6.390.0050.00514.33
5.6.380.0090.00414.14
5.6.370.0070.00713.68
5.6.360.0030.01014.20
5.6.350.0050.00514.09
5.6.340.0070.00714.10
5.6.330.0040.00414.21
5.6.320.0090.00314.17
5.6.310.0030.00714.36
5.6.300.0070.00714.07
5.6.290.0100.00714.16
5.6.280.0000.04417.75
5.6.270.0060.00614.44
5.6.260.0030.00914.27
5.6.250.0080.02517.42
5.6.240.0110.03717.43
5.6.230.0070.03317.46
5.6.220.0050.03117.27
5.6.210.0030.03017.41
5.6.200.0070.03817.53
5.6.190.0100.04217.63
5.6.180.0030.03717.51
5.6.170.0050.02817.56
5.6.160.0080.04717.52
5.6.150.0110.04017.43
5.6.140.0130.03917.54
5.6.130.0080.04517.71
5.6.120.0070.03417.48
5.6.110.0000.04617.56
5.6.100.0120.02317.56
5.6.90.0070.03817.56
5.6.80.0090.02417.35
5.6.70.0020.04617.22
5.6.60.0020.03017.13
5.6.50.0070.04317.13
5.6.40.0080.04117.14
5.6.30.0070.03317.20
5.6.20.0100.03617.24
5.6.10.0100.03617.17
5.6.00.0050.02417.12
5.5.380.0110.02617.22
5.5.370.0060.02517.20
5.5.360.0070.04817.08
5.5.350.0050.03317.19
5.5.340.0150.03917.28
5.5.330.0060.03817.29
5.5.320.0080.04117.37
5.5.310.0100.04017.29
5.5.300.0090.04317.55
5.5.290.0120.03117.46
5.5.280.0080.04517.56
5.5.270.0030.04517.61
5.5.260.0030.03417.42
5.5.250.0100.04117.21
5.5.240.0100.03817.09
5.5.230.0060.04516.97
5.5.220.0080.04216.76
5.5.210.0100.04016.96
5.5.200.0130.02717.01
5.5.190.0130.03517.02
5.5.180.0050.02716.86
5.5.170.0030.00613.64
5.5.160.0040.04916.81
5.5.150.0090.03617.04
5.5.140.0090.04017.03
5.5.130.0070.03816.98
5.5.120.0110.04217.08
5.5.110.0080.04416.87
5.5.100.0070.04116.95
5.5.90.0040.04017.11
5.5.80.0060.03117.01
5.5.70.0020.05116.82
5.5.60.0050.02916.92
5.5.50.0100.02116.97
5.5.40.0070.04016.81
5.5.30.0080.04116.97
5.5.20.0080.03816.86
5.5.10.0030.04116.83
5.5.00.0110.04017.04
5.4.450.0110.03615.40
5.4.440.0030.04015.38
5.4.430.0110.02115.45
5.4.420.0050.04215.32
5.4.410.0020.03015.27
5.4.400.0060.04215.22
5.4.390.0050.04015.24
5.4.380.0050.03815.20
5.4.370.0080.02215.21
5.4.360.0050.02815.13
5.4.350.0050.03515.21
5.4.340.0080.03515.19
5.4.330.0060.00611.35
5.4.320.0080.04415.21
5.4.310.0060.03915.16
5.4.300.0070.03215.16
5.4.290.0020.04615.09
5.4.280.0080.03715.21
5.4.270.0100.04115.24
5.4.260.0100.03615.15
5.4.250.0050.04015.06
5.4.240.0060.03515.12
5.4.230.0050.04315.13
5.4.220.0030.04315.16
5.4.210.0020.04315.28
5.4.200.0070.04015.20
5.4.190.0020.03015.22
5.4.180.0080.03415.21
5.4.170.0030.03415.22
5.4.160.0090.03015.13
5.4.150.0070.04215.28
5.4.140.0070.03813.83
5.4.130.0020.04113.78
5.4.120.0030.02413.79
5.4.110.0050.02013.88
5.4.100.0090.01713.90
5.4.90.0080.01613.79
5.4.80.0020.02413.83
5.4.70.0020.02813.88
5.4.60.0020.02213.83
5.4.50.0050.02213.87
5.4.40.0050.01913.84
5.4.30.0050.01813.76
5.4.20.0020.02413.87
5.4.10.0030.02313.82
5.4.00.0080.01513.53
5.3.290.0100.04012.99
5.3.280.0070.03812.97
5.3.270.0020.02312.98
5.3.260.0070.02712.90
5.3.250.0090.03412.98
5.3.240.0060.04312.95
5.3.230.0020.02512.97
5.3.220.0040.02012.87
5.3.210.0100.01912.95
5.3.200.0100.01712.94
5.3.190.0020.02412.93
5.3.180.0060.01812.88
5.3.170.0070.01912.92
5.3.160.0030.02112.87
5.3.150.0020.02112.89
5.3.140.0020.02212.87
5.3.130.0020.02612.94
5.3.120.0030.02112.93
5.3.110.0010.02112.94
5.3.100.0020.02012.62
5.3.90.0080.01812.67
5.3.80.0030.02012.65
5.3.70.0000.02412.61
5.3.60.0000.02512.65
5.3.50.0040.01712.62
5.3.40.0080.01612.62
5.3.30.0020.02312.61
5.3.20.0020.03212.52
5.3.10.0030.03112.49
5.3.00.0060.02112.47
5.2.170.0000.03311.16
5.2.160.0030.02711.16
5.2.150.0000.03311.13
5.2.140.0030.03011.15
5.2.130.0000.02711.14
5.2.120.0000.05310.95
5.2.110.0000.03310.96
5.2.100.0030.02711.02
5.2.90.0030.02711.09
5.2.80.0030.03011.04
5.2.70.0030.02710.95
5.2.60.0030.02310.87
5.2.50.0070.02711.06
5.2.40.0030.02710.93
5.2.30.0000.03010.93
5.2.20.0000.02711.02
5.2.10.0030.02710.71
5.2.00.0000.03010.77
5.1.60.0000.0239.87
5.1.50.0030.02310.00
5.1.40.0000.0279.85
5.1.30.0030.02710.19
5.1.20.0000.02710.37
5.1.10.0030.0239.89
5.1.00.0070.02310.09
5.0.50.0030.0338.55
5.0.40.0030.0208.45
5.0.30.0000.0308.29
5.0.20.0030.0278.18
5.0.10.0030.0178.20
5.0.00.0000.0438.15
4.4.90.0000.0178.04
4.4.80.0000.0178.04
4.4.70.0000.0178.04
4.4.60.0000.0138.04
4.4.50.0000.0208.04
4.4.40.0000.0278.04
4.4.30.0030.0108.04
4.4.20.0030.0138.04
4.4.10.0070.0308.04
4.4.00.0000.0238.04
4.3.110.0030.0138.04
4.3.100.0070.0278.04
4.3.90.0000.0178.04
4.3.80.0000.0238.04
4.3.70.0030.0208.04
4.3.60.0000.0178.04
4.3.50.0030.0138.04
4.3.40.0000.0238.04
4.3.30.0000.0138.04
4.3.20.0030.0108.04
4.3.10.0000.0138.04
4.3.00.0030.0138.04

preferences:
37.19 ms | 400 KiB | 5 Q