3v4l.org

run code in 300+ PHP versions simultaneously
<?php $name = null; var_dump(isset($name));

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)
8.3.60.0140.00016.38
8.3.50.0080.01021.92
8.3.40.0170.00318.55
8.3.30.0070.00718.59
8.3.20.0000.00720.09
8.3.10.0050.00323.52
8.3.00.0030.00519.26
8.2.180.0180.00417.96
8.2.170.0060.00922.96
8.2.160.0140.00020.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0060.00317.38
8.2.120.0040.00426.35
8.2.110.0030.00622.25
8.2.100.0080.00417.68
8.2.90.0050.00319.13
8.2.80.0000.00817.97
8.2.70.0050.00517.50
8.2.60.0050.00317.91
8.2.50.0070.00418.07
8.2.40.0080.00019.46
8.2.30.0000.00720.61
8.2.20.0040.00417.52
8.2.10.0050.00218.04
8.2.00.0000.00817.97
8.1.280.0070.00725.92
8.1.270.0080.00022.04
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0040.00423.95
8.1.230.0040.00717.66
8.1.220.0000.00717.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0040.00417.42
8.1.180.0080.00018.10
8.1.170.0050.00518.27
8.1.160.0070.00021.95
8.1.150.0070.00018.82
8.1.140.0040.00419.50
8.1.130.0030.00317.41
8.1.120.0040.00417.42
8.1.110.0040.00417.38
8.1.100.0030.00717.41
8.1.90.0000.00717.21
8.1.80.0050.00317.37
8.1.70.0040.00417.33
8.1.60.0000.00817.58
8.1.50.0050.00317.40
8.1.40.0080.00417.43
8.1.30.0040.00417.47
8.1.20.0000.00817.50
8.1.10.0040.00417.46
8.1.00.0060.00317.26
8.0.300.0040.00418.77
8.0.290.0020.00516.75
8.0.280.0030.00318.36
8.0.270.0050.00317.17
8.0.260.0030.00316.69
8.0.250.0000.00616.93
8.0.240.0070.00016.88
8.0.230.0000.00716.85
8.0.220.0030.00316.75
8.0.210.0050.00316.80
8.0.200.0030.00316.89
8.0.190.0000.00816.84
8.0.180.0080.00016.85
8.0.170.0080.00016.84
8.0.160.0000.00716.77
8.0.150.0040.00416.71
8.0.140.0040.00416.78
8.0.130.0000.00613.30
8.0.120.0050.00316.79
8.0.110.0000.00816.72
8.0.100.0080.00016.85
8.0.90.0030.00316.69
8.0.80.0090.00616.86
8.0.70.0040.00416.86
8.0.60.0000.00716.72
8.0.50.0030.00316.80
8.0.30.0130.00817.06
8.0.20.0060.01217.40
8.0.10.0000.00716.82
8.0.00.0090.01016.81
7.4.330.0050.00016.66
7.4.320.0000.00616.59
7.4.300.0000.00716.42
7.4.290.0000.00716.53
7.4.280.0000.00716.36
7.4.270.0000.00716.41
7.4.260.0050.00216.52
7.4.250.0000.00916.39
7.4.240.0020.00516.48
7.4.230.0000.00716.48
7.4.220.0080.01416.55
7.4.210.0030.01116.47
7.4.200.0000.00716.27
7.4.160.0090.01216.54
7.4.150.0120.00617.40
7.4.140.0060.01117.86
7.4.130.0070.01216.48
7.4.120.0050.01216.40
7.4.110.0060.01216.41
7.4.100.0090.00916.41
7.4.90.0070.01016.61
7.4.80.0160.00719.39
7.4.70.0150.00616.49
7.4.60.0100.00716.27
7.4.50.0060.01016.49
7.4.40.0070.01016.44
7.4.30.0040.01216.57
7.4.00.0070.01014.56
7.3.330.0020.00212.96
7.3.320.0000.00613.04
7.3.310.0040.00416.06
7.3.300.0070.00016.17
7.3.290.0070.00916.14
7.3.280.0060.01116.13
7.3.270.0070.01017.40
7.3.260.0130.01016.16
7.3.250.0100.00916.40
7.3.240.0080.00916.09
7.3.230.0060.00916.39
7.3.210.0100.00616.05
7.3.200.0100.00716.10
7.3.190.0120.00616.36
7.3.180.0120.00316.45
7.3.170.0070.01416.27
7.3.160.0090.00916.07
7.3.120.0030.01414.60
7.3.110.0000.01314.60
7.3.100.0060.00614.85
7.3.90.0100.00614.92
7.3.80.0000.00914.49
7.3.70.0130.00314.50
7.3.60.0030.01014.55
7.3.50.0090.00614.61
7.3.40.0030.01114.54
7.3.30.0000.01014.72
7.3.20.0030.01216.35
7.3.10.0090.00616.45
7.3.00.0090.00616.45
7.2.330.0140.00816.24
7.2.320.0120.01216.50
7.2.310.0100.00616.37
7.2.300.0100.00716.64
7.2.290.0060.01516.42
7.2.240.0060.00614.44
7.2.230.0030.01114.59
7.2.220.0030.00714.70
7.2.210.0030.01314.50
7.2.200.0140.00014.61
7.2.190.0040.01215.00
7.2.180.0090.00314.89
7.2.170.0030.01014.96
7.2.160.0040.01114.90
7.2.150.0060.01016.46
7.2.140.0030.00816.75
7.2.130.0070.01016.59
7.2.120.0060.01216.89
7.2.110.0100.00716.63
7.2.100.0090.00616.65
7.2.90.0110.00416.50
7.2.80.0080.00416.76
7.2.70.0060.00616.65
7.2.60.0090.00616.96
7.2.50.0140.00316.77
7.2.40.0070.01016.98
7.2.30.0100.00716.97
7.2.20.0080.00816.92
7.2.10.0030.01016.65
7.2.00.0030.01118.07
7.1.330.0090.00615.72
7.1.320.0100.00715.72
7.1.310.0000.01715.69
7.1.300.0080.00815.52
7.1.290.0000.01515.65
7.1.280.0070.00715.81
7.1.270.0030.01415.64
7.1.260.0070.01015.55
7.1.250.0040.00715.38
7.1.100.0000.01117.91
7.1.70.0080.00317.15
7.1.60.0030.02019.36
7.1.50.0090.00416.79
7.1.00.0070.07322.46
7.0.200.0030.00316.70
7.0.60.0070.08320.02
7.0.50.0030.08717.87
7.0.40.0100.06020.40
7.0.30.0330.04320.30
7.0.20.0200.05020.17
7.0.10.0130.08020.30
7.0.00.0030.08320.16
5.6.280.0000.03721.09
5.6.210.0100.06020.72
5.6.200.0030.08318.22
5.6.190.0130.04720.43
5.6.180.0330.07720.34
5.6.170.0300.07320.38
5.6.160.0130.07720.46
5.6.150.0070.03718.21
5.6.140.0100.07718.07
5.6.130.0030.09018.18
5.6.120.0070.08721.00
5.6.110.0070.07021.00
5.6.100.0030.06720.95
5.6.90.0230.06721.11
5.6.80.0030.07320.34
5.5.350.0130.05720.29
5.5.340.0030.04317.93
5.5.330.0100.05020.47
5.5.320.0000.04320.30
5.5.310.0300.07320.24
5.5.300.0100.06717.97
5.5.290.0030.08317.90
5.5.280.0030.04020.75
5.5.270.0100.07720.72
5.5.260.0100.03720.83
5.5.250.0100.08020.54
5.5.240.4170.03720.06

preferences:
55.69 ms | 401 KiB | 5 Q