3v4l.org

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

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)
8.3.40.0110.00418.72
8.3.30.0140.00018.73
8.3.20.0050.00320.29
8.3.10.0000.00721.71
8.3.00.0000.00819.26
8.2.170.0090.00622.96
8.2.160.0070.00720.52
8.2.150.0040.00424.18
8.2.140.0160.00024.66
8.2.130.0070.00026.16
8.2.120.0030.00619.16
8.2.110.0100.00020.53
8.2.100.0090.00317.79
8.2.90.0090.00019.04
8.2.80.0080.00017.97
8.2.70.0030.00617.38
8.2.60.0000.00917.93
8.2.50.0080.00018.10
8.2.40.0040.00420.64
8.2.30.0040.00419.17
8.2.20.0050.00217.84
8.2.10.0000.00717.90
8.2.00.0040.00417.88
8.1.270.0080.00023.97
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0000.00920.96
8.1.230.0000.01117.70
8.1.220.0000.00917.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0060.00317.10
8.1.180.0040.00418.10
8.1.170.0040.00420.16
8.1.160.0070.00018.95
8.1.150.0000.00718.86
8.1.140.0040.00419.41
8.1.130.0030.00318.75
8.1.120.0000.00817.43
8.1.110.0000.00717.40
8.1.100.0000.00717.43
8.1.90.0040.00417.46
8.1.80.0050.00217.29
8.1.70.0000.00817.39
8.1.60.0020.00517.56
8.1.50.0040.00417.36
8.1.40.0000.00917.33
8.1.30.0040.00417.59
8.1.20.0030.00717.42
8.1.10.0090.00017.38
8.1.00.0040.00417.23
8.0.300.0080.00018.77
8.0.290.0000.00916.75
8.0.280.0000.00718.44
8.0.270.0000.00816.66
8.0.260.0030.00316.79
8.0.250.0030.00316.87
8.0.240.0000.00716.86
8.0.230.0000.00716.84
8.0.220.0000.00616.76
8.0.210.0070.00016.79
8.0.200.0000.00816.90
8.0.190.0000.00816.91
8.0.180.0040.00416.86
8.0.170.0030.00316.68
8.0.160.0070.00016.72
8.0.150.0000.00716.80
8.0.140.0040.00416.86
8.0.130.0050.00013.24
8.0.120.0080.00016.73
8.0.110.0040.00416.78
8.0.100.0040.00416.73
8.0.90.0000.00716.77
8.0.80.0080.00616.77
8.0.70.0000.00716.87
8.0.60.0040.00416.70
8.0.50.0080.00016.73
8.0.30.0120.00716.88
8.0.20.0110.00817.40
8.0.10.0000.00716.84
8.0.00.0180.00016.74
7.4.330.0040.00015.55
7.4.320.0000.00616.52
7.4.300.0060.00016.44
7.4.290.0060.00316.51
7.4.280.0030.00716.33
7.4.270.0000.00616.36
7.4.260.0000.00716.56
7.4.250.0000.00816.39
7.4.240.0030.00316.42
7.4.230.0000.00616.37
7.4.220.0070.01016.51
7.4.210.0060.00916.38
7.4.200.0070.00016.34
7.4.160.0140.00716.37
7.4.150.0070.01117.40
7.4.140.0100.01117.86
7.4.130.0170.00716.35
7.4.120.0080.01316.29
7.4.110.0160.01016.50
7.4.100.0080.01116.30
7.4.90.0060.01216.29
7.4.80.0150.00419.39
7.4.70.0040.01116.44
7.4.60.0100.00616.45
7.4.50.0070.01016.42
7.4.40.0130.00616.36
7.4.30.0120.00316.45
7.4.00.0080.00814.78
7.3.330.0000.00513.13
7.3.320.0000.00513.03
7.3.310.0070.00016.09
7.3.300.0040.00416.12
7.3.290.0060.00816.20
7.3.280.0090.00716.13
7.3.270.0090.00917.40
7.3.260.0130.00616.09
7.3.250.0110.00816.27
7.3.240.0100.00616.14
7.3.230.0160.00016.09
7.3.210.0030.01316.44
7.3.200.0090.00616.09
7.3.190.0060.00916.14
7.3.180.0110.00416.25
7.3.170.0090.00616.41
7.3.160.0080.00816.11
7.3.120.0110.00714.67
7.3.110.0090.00914.69
7.3.100.0040.01114.41
7.3.90.0030.00914.56
7.3.80.0130.00014.80
7.3.70.0040.00714.61
7.3.60.0040.01214.62
7.3.50.0090.00614.54
7.3.40.0070.00714.51
7.3.30.0100.00314.34
7.3.20.0080.00716.69
7.3.10.0060.01016.55
7.3.00.0030.00616.64
7.2.330.0160.00316.54
7.2.320.0120.01416.58
7.2.310.0090.00616.46
7.2.300.0030.01316.55
7.2.290.0070.01316.53
7.2.250.0060.01314.75
7.2.240.0060.01314.96
7.2.230.0040.01414.87
7.2.220.0060.00914.64
7.2.210.0000.01614.83
7.2.200.0100.00614.98
7.2.190.0030.00614.91
7.2.180.0120.00314.83
7.2.170.0060.00614.80
7.2.60.0070.00716.83
7.2.00.0090.00619.46
7.1.330.0110.00415.81
7.1.320.0110.00415.61
7.1.310.0040.00415.34
7.1.300.0070.00715.52
7.1.290.0050.01015.42
7.1.280.0000.00915.41
7.1.270.0090.00315.74
7.1.260.0040.00415.65
7.1.200.0060.00615.68
7.1.100.0000.01117.96
7.1.70.0040.00817.06
7.1.60.0190.01635.13
7.1.50.0160.01034.76
7.1.40.0140.01034.18
7.1.30.0160.01034.38
7.1.20.0150.01134.50
7.1.10.0000.01616.41
7.1.00.0030.00916.49
7.0.200.0080.00416.63
7.0.190.0090.00316.51
7.0.180.0060.00615.88
7.0.170.0060.00616.18
7.0.160.0030.00916.27
7.0.150.0030.01416.08
7.0.140.0070.00716.34
7.0.130.0060.00616.46
7.0.120.0090.00916.68
7.0.110.0060.00615.97
7.0.100.0030.00916.11
7.0.90.0050.01016.15
7.0.80.0040.00816.27
7.0.70.0030.00916.12
7.0.60.0030.00916.05
7.0.50.0030.00916.20
7.0.40.0110.00316.17
7.0.30.0080.00516.35
7.0.20.0120.00316.27
7.0.10.0090.00416.11
7.0.00.0060.00616.26

preferences:
37.18 ms | 400 KiB | 5 Q