3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = false; var_dump(isset($var)); var_dump(!empty($var));

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)
8.3.60.0090.00616.13
8.3.50.0100.00316.30
8.3.40.0140.00318.62
8.3.30.0110.00418.42
8.3.20.0070.00020.30
8.3.10.0060.00323.66
8.3.00.0070.00023.31
8.2.180.0140.00716.32
8.2.170.0100.00322.96
8.2.160.0070.00720.43
8.2.150.0070.00025.66
8.2.140.0000.00824.66
8.2.130.0040.00422.27
8.2.120.0070.00026.35
8.2.110.0090.00021.04
8.2.100.0040.00817.73
8.2.90.0030.00519.11
8.2.80.0050.00317.97
8.2.70.0000.00817.63
8.2.60.0040.00417.91
8.2.50.0030.00618.10
8.2.40.0050.00220.61
8.2.30.0040.00421.08
8.2.20.0000.00717.96
8.2.10.0000.00817.92
8.2.00.0040.00417.89
8.1.280.0120.00925.92
8.1.270.0080.00022.02
8.1.260.0050.00226.35
8.1.250.0080.00028.09
8.1.240.0060.00621.30
8.1.230.0080.00417.64
8.1.220.0030.00617.77
8.1.210.0080.00018.77
8.1.200.0060.00317.13
8.1.190.0060.00317.23
8.1.180.0040.00418.10
8.1.170.0040.00418.58
8.1.160.0000.00818.88
8.1.150.0040.00418.88
8.1.140.0040.00417.57
8.1.130.0030.00317.37
8.1.120.0060.00317.49
8.1.110.0050.00217.46
8.1.100.0070.00017.35
8.1.90.0000.00717.49
8.1.80.0000.00717.46
8.1.70.0000.00717.38
8.1.60.0040.00417.57
8.1.50.0050.00217.52
8.1.40.0040.00417.38
8.1.30.0060.00317.73
8.1.20.0000.00817.64
8.1.10.0040.00417.34
8.1.00.0040.00417.38
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0070.00018.43
8.0.270.0050.00217.29
8.0.260.0030.00316.73
8.0.250.0030.00316.98
8.0.240.0040.00416.81
8.0.230.0000.00816.92
8.0.220.0030.00316.78
8.0.210.0030.00316.88
8.0.200.0000.00616.93
8.0.190.0070.00416.91
8.0.180.0080.00016.76
8.0.170.0000.00716.90
8.0.160.0080.00016.84
8.0.150.0030.00516.81
8.0.140.0000.00716.86
8.0.130.0000.00613.33
8.0.120.0040.00416.78
8.0.110.0030.00316.84
8.0.100.0000.00716.69
8.0.90.0000.00716.89
8.0.80.0130.00716.79
8.0.70.0070.00016.85
8.0.60.0000.00716.77
8.0.50.0070.00016.92
8.0.30.0100.00816.99
8.0.20.0080.01217.40
8.0.10.0030.00516.89
8.0.00.0120.00616.73
7.4.330.0000.00516.70
7.4.320.0000.00716.60
7.4.300.0030.00316.34
7.4.290.0030.00316.59
7.4.280.0000.00716.63
7.4.270.0060.00316.48
7.4.260.0000.00716.45
7.4.250.0000.00716.49
7.4.240.0030.00316.54
7.4.230.0030.00316.34
7.4.220.0070.01116.63
7.4.210.0050.01016.50
7.4.200.0000.00716.42
7.4.160.0110.00716.48
7.4.150.0070.01117.40
7.4.140.0090.00817.86
7.4.130.0030.01416.42
7.4.120.0100.00716.45
7.4.110.0090.01216.50
7.4.100.0140.00316.35
7.4.90.0100.00716.45
7.4.80.0080.00819.39
7.4.70.0120.00916.55
7.4.60.0090.01216.38
7.4.50.0090.00616.32
7.4.40.0130.01016.39
7.4.30.0070.01016.52
7.4.00.0040.01215.11
7.3.330.0020.00213.06
7.3.320.0050.00012.84
7.3.310.0030.00316.22
7.3.300.0000.00816.15
7.3.290.0030.00315.96
7.3.280.0080.00816.12
7.3.270.0170.00017.40
7.3.260.0100.00716.14
7.3.250.0080.01116.12
7.3.240.0090.01116.43
7.3.230.0120.00916.24
7.3.210.0120.01216.19
7.3.200.0060.00916.45
7.3.190.0030.01616.12
7.3.180.0100.00716.17
7.3.170.0120.00416.13
7.3.160.0080.00816.48
7.3.10.0100.01016.07
7.3.00.0100.01016.41
7.2.330.0120.00616.66
7.2.320.0070.01116.57
7.2.310.0070.01116.43
7.2.300.0060.01116.63
7.2.290.0150.00616.38
7.2.130.0150.00716.66
7.2.120.0130.00816.24
7.2.110.0160.00016.01
7.2.100.0070.00716.33
7.2.90.0140.00716.33
7.2.80.0130.00616.05
7.2.70.0110.00415.88
7.2.60.0180.00316.36
7.2.50.0150.00316.58
7.2.40.0030.00916.34
7.2.30.0170.00015.74
7.2.20.0100.00716.64
7.2.10.0100.00715.82
7.2.00.0120.00316.13
7.1.250.0150.00315.08
7.1.200.0030.01015.82
7.1.110.0070.00717.92
7.1.100.0070.00717.87
7.1.90.0030.01517.96
7.1.80.0040.00917.90
7.1.70.0060.00916.83
7.1.60.0240.00735.05
7.1.50.0190.01034.73
7.1.40.0190.01034.18
7.1.30.0190.00934.27
7.1.20.0130.01934.40
7.1.10.0000.01516.64
7.1.00.0040.01516.50
7.0.250.0070.00717.43
7.0.240.0030.01017.66
7.0.230.0030.01517.65
7.0.220.0150.00617.73
7.0.210.0030.01516.70
7.0.200.0090.00616.82
7.0.190.0060.00816.57
7.0.180.0040.01216.09
7.0.170.0000.01316.18
7.0.160.0040.01116.08
7.0.150.0070.01015.94
7.0.140.0130.00316.14
7.0.130.0030.01016.34
7.0.120.0040.01116.50
7.0.110.0040.00916.23
7.0.100.0060.00816.19
7.0.90.0060.00916.29
7.0.80.0080.00616.23
7.0.70.0030.00916.30
7.0.60.0060.00616.07
7.0.50.0080.01116.41
7.0.40.0070.01116.39
7.0.30.0040.01516.60
7.0.20.0000.01916.45
7.0.10.0060.01216.42
7.0.00.0110.00816.29

preferences:
61.22 ms | 400 KiB | 5 Q