3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo isset($a) ? $a : 'foo';

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)
8.3.40.0040.01118.84
8.3.30.0100.00320.23
8.3.20.0030.00518.65
8.3.10.0000.00821.08
8.3.00.0050.00519.56
8.2.170.0100.00722.96
8.2.160.0070.00720.38
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00019.77
8.2.110.0040.00819.27
8.2.100.0060.00617.78
8.2.90.0000.00917.50
8.2.80.0000.00918.82
8.2.70.0050.00317.37
8.2.60.0000.00817.37
8.2.50.0060.00318.04
8.2.40.0040.00418.04
8.2.30.0050.00321.09
8.2.20.0040.00417.46
8.2.10.0000.00717.50
8.2.00.0000.01117.64
8.1.270.0070.00023.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00719.41
8.1.230.0040.00820.89
8.1.220.0080.00018.58
8.1.210.0040.00418.77
8.1.200.0000.00917.10
8.1.190.0040.00417.11
8.1.180.0000.00818.10
8.1.170.0040.00417.62
8.1.160.0000.00718.67
8.1.150.0040.00418.60
8.1.140.0040.00417.31
8.1.130.0030.00317.75
8.1.120.0070.00417.35
8.1.110.0020.00517.20
8.1.100.0040.00417.20
8.1.90.0000.00717.29
8.1.80.0070.00017.30
8.1.70.0050.00317.30
8.1.60.0040.00417.51
8.1.50.0040.00417.25
8.1.40.0040.00417.38
8.1.30.0000.00817.47
8.1.20.0040.00417.53
8.1.10.0070.00017.43
8.1.00.0000.00717.29
8.0.300.0000.00718.77
8.0.290.0060.00317.05
8.0.280.0000.00718.46
8.0.270.0030.00317.23
8.0.260.0060.00016.72
8.0.250.0080.00016.89
8.0.240.0060.00316.89
8.0.230.0040.00416.81
8.0.220.0030.00316.69
8.0.210.0000.00916.75
8.0.200.0070.00016.75
8.0.190.0040.00416.79
8.0.180.0070.00016.82
8.0.170.0000.00716.73
8.0.160.0000.00716.80
8.0.150.0070.00016.63
8.0.140.0000.00816.67
8.0.130.0000.00513.19
8.0.120.0000.00716.73
8.0.110.0040.00316.62
8.0.100.0030.00316.71
8.0.90.0040.00416.82
8.0.80.0060.01516.71
8.0.70.0040.00416.69
8.0.60.0000.00716.53
8.0.50.0070.00016.80
8.0.30.0090.00916.82
8.0.20.0180.00317.40
8.0.10.0020.00516.93
8.0.00.0090.01316.58
7.4.330.0050.00016.84
7.4.320.0060.00016.27
7.4.300.0030.00316.43
7.4.290.0040.00416.37
7.4.280.0040.00316.36
7.4.270.0060.00016.23
7.4.260.0030.00313.13
7.4.250.0040.00416.32
7.4.240.0000.00716.38
7.4.230.0070.00016.25
7.4.220.0100.00716.28
7.4.210.0100.00616.43
7.4.200.0040.00416.27
7.4.190.0030.00316.53
7.4.160.0160.00816.52
7.4.150.0090.00917.40
7.4.140.0100.00917.86
7.4.130.0130.00616.40
7.4.120.0070.01016.39
7.4.110.0060.01316.17
7.4.100.0090.00616.55
7.4.90.0060.01916.51
7.4.80.0150.00619.39
7.4.70.0040.01216.48
7.4.60.0060.01116.32
7.4.50.0030.00616.49
7.4.40.0060.01122.77
7.4.30.0100.00716.30
7.4.10.0070.00914.93
7.4.00.0070.01014.64
7.3.330.0000.00613.02
7.3.320.0000.00612.97
7.3.310.0040.00416.26
7.3.300.0050.00315.99
7.3.290.0100.01016.16
7.3.280.0110.00616.11
7.3.270.0070.01117.40
7.3.260.0090.01018.24
7.3.250.0100.00916.37
7.3.240.0060.01016.12
7.3.230.0060.01016.39
7.3.210.0100.00616.15
7.3.200.0130.00519.39
7.3.190.0100.00716.31
7.3.180.0130.00616.18
7.3.170.0090.00616.39
7.3.160.0050.01016.30
7.3.130.0030.01314.64
7.3.120.0050.01214.71
7.3.110.0120.00614.55
7.3.100.0050.01114.77
7.3.90.0060.01114.65
7.3.80.0030.00714.67
7.3.70.0040.00914.60
7.3.60.0030.00914.47
7.3.50.0060.00714.55
7.3.40.0060.00614.41
7.3.30.0030.00814.53
7.3.20.0100.00216.46
7.3.10.0040.00816.40
7.3.00.0050.00516.49
7.2.330.0110.00716.48
7.2.320.0030.01316.52
7.2.310.0060.01216.54
7.2.300.0090.00916.46
7.2.290.0090.00916.19
7.2.260.0020.01314.74
7.2.250.0070.00814.91
7.2.240.0060.01014.91
7.2.230.0050.00914.98
7.2.220.0060.00714.88
7.2.210.0060.00614.78
7.2.200.0030.01014.76
7.2.190.0060.00715.00
7.2.180.0040.01214.75
7.2.170.0060.00614.96
7.2.160.0080.00514.88
7.2.150.0020.01216.75
7.2.140.0070.00816.51
7.2.130.0060.00616.60
7.2.120.0030.01016.73
7.2.110.0050.00516.72
7.2.100.0090.00316.86
7.2.90.0060.00716.78
7.2.80.0040.00916.75
7.2.70.0060.00616.84
7.2.60.0080.00516.75
7.2.50.0030.00816.57
7.2.40.0030.01016.66
7.2.30.0060.01016.67
7.2.20.0030.00916.78
7.2.10.0030.01216.85
7.2.00.0030.00716.88
7.1.330.0050.00915.72
7.1.320.0030.01015.67
7.1.310.0050.01115.58
7.1.300.0080.00515.50
7.1.290.0050.00715.57
7.1.280.0060.00715.61
7.1.270.0050.00815.55
7.1.260.0040.01015.67
7.1.250.0070.00715.75
7.1.240.0030.00815.62
7.1.230.0030.01015.47
7.1.220.0040.00615.58
7.1.210.0070.00515.58
7.1.200.0050.00815.45
7.1.190.0080.00315.52
7.1.180.0060.00515.66
7.1.170.0040.00915.55
7.1.160.0030.00615.57
7.1.150.0080.00615.71
7.1.140.0050.00715.36
7.1.130.0060.00615.53
7.1.120.0110.00215.52
7.1.110.0050.00515.74
7.1.100.0030.00515.47
7.1.90.0050.00515.46
7.1.80.0030.00915.51
7.1.70.0040.00815.97
7.1.60.0040.01216.79
7.1.50.0060.01115.73
7.1.40.0060.00915.67
7.1.30.0060.00715.61
7.1.20.0050.00915.46
7.1.10.0060.00815.72
7.1.00.0060.03017.70
7.0.330.0050.00715.28
7.0.320.0080.00515.18
7.0.310.0040.00715.13
7.0.300.0020.01215.10
7.0.290.0020.00815.13
7.0.280.0090.00515.12
7.0.270.0080.00515.34
7.0.260.0100.00215.17
7.0.250.0020.01115.28
7.0.240.0040.00715.32
7.0.230.0040.00815.47
7.0.220.0090.00415.32
7.0.210.0020.00915.14
7.0.200.0050.00715.68
7.0.190.0070.00415.32
7.0.180.0050.00815.19
7.0.170.0050.00615.17
7.0.160.0050.00515.46
7.0.150.0070.00615.23
7.0.140.0050.02717.47
7.0.130.0020.00915.04
7.0.120.0060.00615.32
7.0.110.0020.00915.41
7.0.100.0050.02216.85
7.0.90.0040.02416.72
7.0.80.0170.02616.75
7.0.70.0080.02016.67
7.0.60.0020.03716.87
7.0.50.0130.03417.05
7.0.40.0070.03315.54
7.0.30.0030.01915.54
7.0.20.0040.02015.54
7.0.10.0040.02315.57
7.0.00.0070.01815.68
5.6.400.0080.00414.26
5.6.390.0040.00914.29
5.6.380.0070.00714.50
5.6.370.0070.00514.20
5.6.360.0040.00714.16
5.6.350.0030.00914.13
5.6.340.0040.00814.34
5.6.330.0050.00614.44
5.6.320.0030.00814.32
5.6.310.0070.00514.24
5.6.300.0060.00514.24
5.6.290.0030.01314.28
5.6.280.0060.03616.58
5.6.270.0060.00714.26
5.6.260.0080.00514.41
5.6.250.0080.02816.33
5.6.240.0080.02516.45
5.6.230.0090.02916.47
5.6.220.0030.02016.41
5.6.210.0040.01816.35
5.6.200.0090.03016.45
5.6.190.0020.03616.51
5.6.180.0030.01916.62
5.6.170.0040.01816.58
5.6.160.0040.02116.43
5.6.150.0040.02116.47
5.6.140.0040.02016.42
5.6.130.0030.02216.60
5.6.120.0050.01616.35
5.6.110.0060.02016.46
5.6.100.0040.02116.50
5.6.90.0090.01316.38
5.6.80.0040.01916.30
5.6.70.0000.02116.29
5.6.60.0040.01716.16
5.6.50.0040.01716.18
5.6.40.0060.01116.27
5.6.30.0060.01716.15
5.6.20.0050.01616.27
5.6.10.0070.01716.15
5.6.00.0040.01916.18
5.5.380.0060.02016.14
5.5.370.0060.02616.38
5.5.360.0050.03216.45
5.5.350.0080.02816.21
5.5.340.0100.01816.25
5.5.330.0040.02016.37
5.5.320.0020.02116.34
5.5.310.0060.02016.49
5.5.300.0030.02116.38
5.5.290.0030.02116.31
5.5.280.0050.02416.40
5.5.270.0030.02016.34
5.5.260.0070.01516.46
5.5.250.0050.01516.34
5.5.240.0050.01516.14
5.5.230.0070.01516.03
5.5.220.0060.01516.11
5.5.210.0080.01316.01
5.5.200.0050.01616.09
5.5.190.0050.01616.06
5.5.180.0070.01816.06
5.5.170.0060.00613.90
5.5.160.0060.01915.98
5.5.150.0060.02216.18
5.5.140.0060.01516.10
5.5.130.0070.01316.20
5.5.120.0060.01616.00
5.5.110.0060.02916.00
5.5.100.0090.03216.07
5.5.90.0050.01816.07
5.5.80.0040.01916.09
5.5.70.0040.02116.07
5.5.60.0030.03316.07
5.5.50.0050.01816.07
5.5.40.0080.01916.08
5.5.30.0040.02516.07
5.5.20.0050.02516.06
5.5.10.0050.01816.12
5.5.00.0070.03016.05
5.4.450.0020.01913.82
5.4.440.0050.01713.75
5.4.430.0050.01813.76
5.4.420.0010.01513.61
5.4.410.0070.01413.65
5.4.400.0040.01513.50
5.4.390.0040.01813.59
5.4.380.0040.01413.54
5.4.370.0020.01513.61
5.4.360.0030.01713.59
5.4.350.0030.01613.56
5.4.340.0030.01713.68
5.4.330.0020.01010.78
5.4.320.0050.01213.54
5.4.310.0050.01513.64
5.4.300.0020.01813.62
5.4.290.0040.01213.56
5.4.280.0040.01913.63
5.4.270.0060.02613.54
5.4.260.0040.02113.54
5.4.250.0030.02113.64
5.4.240.0050.01813.62
5.4.230.0040.01513.64
5.4.220.0030.01713.67
5.4.210.0070.02313.61
5.4.200.0030.01913.63
5.4.190.0030.02313.52
5.4.180.0060.02613.65
5.4.170.0030.02913.67
5.4.160.0050.01813.45
5.4.150.0050.02313.59
5.4.140.0050.02812.76
5.4.130.0010.02112.71
5.4.120.0020.02312.72
5.4.110.0030.02412.72
5.4.100.0060.02612.62
5.4.90.0040.02312.81
5.4.80.0020.02512.69
5.4.70.0030.01812.70
5.4.60.0010.03012.66
5.4.50.0030.02912.70
5.4.40.0080.02812.74
5.4.30.0080.02612.71
5.4.20.0030.01612.76
5.4.10.0080.02712.71
5.4.00.0020.01812.40
5.3.290.0050.01512.00
5.3.280.0040.02011.90
5.3.270.0020.02111.95
5.3.260.0010.02311.98
5.3.250.0030.02411.98
5.3.240.0040.01711.98
5.3.230.0010.02811.97
5.3.220.0030.02311.95
5.3.210.0030.02511.81
5.3.200.0050.02911.85
5.3.190.0010.01711.86
5.3.180.0040.02511.99
5.3.170.0000.02611.94
5.3.160.0050.02311.89
5.3.150.0020.02311.85
5.3.140.0020.02211.94
5.3.130.0010.02211.92
5.3.120.0060.01411.91
5.3.110.0020.02211.89
5.3.100.0040.01611.76
5.3.90.0050.01511.79
5.3.80.0010.01811.74
5.3.70.0040.02011.73
5.3.60.0040.01811.74
5.3.50.0060.02111.61
5.3.40.0020.02611.63
5.3.30.0020.01611.68
5.3.20.0050.01411.60
5.3.10.0030.02211.59
5.3.00.0040.02111.50
5.2.170.0000.05711.61
5.2.160.0070.03311.61
5.2.150.0000.03711.61
5.2.140.0100.04011.61
5.2.130.0100.04711.61
5.2.120.0070.06011.61
5.2.110.0030.06011.61
5.2.100.0030.06011.61
5.2.90.0070.04711.61
5.2.80.0000.03311.61
5.2.70.0000.05311.61
5.2.60.0070.06011.61
5.2.50.0100.03011.61
5.2.40.0030.06711.61
5.2.30.0030.04311.61
5.2.20.0070.06011.61
5.2.10.0030.03311.61
5.2.00.0030.04311.61
5.1.60.0000.03311.61
5.1.50.0030.05311.61
5.1.40.0000.05711.61
5.1.30.0000.06011.61
5.1.20.0070.05011.61
5.1.10.0100.05011.61
5.1.00.0030.06011.61
5.0.50.0100.03711.61
5.0.40.0030.03711.61
5.0.30.0030.06311.61
5.0.20.0070.03711.61
5.0.10.0000.03711.61
5.0.00.0030.06711.61
4.4.90.0030.01711.61
4.4.80.0030.03311.61
4.4.70.0000.04011.61
4.4.60.0000.03711.61
4.4.50.0030.01311.61
4.4.40.0070.05011.61
4.4.30.0000.03711.61
4.4.20.0000.02011.61
4.4.10.0000.03711.61
4.4.00.0000.05711.61
4.3.110.0000.03711.61
4.3.100.0030.03311.61
4.3.90.0000.03011.61
4.3.80.0000.04311.61
4.3.70.0000.02011.61
4.3.60.0070.02011.61
4.3.50.0000.03711.61
4.3.40.0030.04311.61
4.3.30.0000.03711.61
4.3.20.0000.02711.61
4.3.10.0030.03311.61
4.3.00.0000.03311.61

preferences:
46.34 ms | 400 KiB | 5 Q