3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = null; echo $x ?? "LL";

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)
8.3.60.0110.00716.38
8.3.50.0070.01316.14
8.3.40.0130.00718.78
8.3.30.0100.01018.59
8.3.20.0110.00720.02
8.3.10.0070.01023.67
8.3.00.0040.01120.26
8.2.180.0070.01416.61
8.2.170.0090.00622.96
8.2.160.0150.00320.47
8.2.150.0080.00024.18
8.2.140.0080.01124.66
8.2.130.0040.01121.04
8.2.120.0090.00926.35
8.2.110.0090.00019.30
8.2.100.0070.00418.03
8.2.90.0040.00419.22
8.2.80.0050.00317.97
8.2.70.0030.00617.63
8.2.60.0080.00018.04
8.2.50.0080.00018.10
8.2.40.0030.00620.59
8.2.30.0030.00621.02
8.2.20.0040.00418.05
8.2.10.0040.00417.99
8.2.00.0000.00717.85
8.1.280.0160.00625.92
8.1.270.0040.00721.84
8.1.260.0140.00526.35
8.1.250.0100.01028.09
8.1.240.0080.00023.88
8.1.230.0150.00017.45
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0070.00317.13
8.1.190.0040.00419.01
8.1.180.0000.00818.10
8.1.170.0040.00420.31
8.1.160.0000.00719.01
8.1.150.0040.00420.58
8.1.140.0040.00419.34
8.1.130.0040.00418.77
8.1.120.0030.00317.43
8.1.110.0080.00017.25
8.1.100.0050.00317.30
8.1.90.0000.00817.42
8.1.80.0050.00317.34
8.1.70.0050.00317.41
8.1.60.0070.00017.51
8.1.50.0030.00717.46
8.1.40.0040.00417.32
8.1.30.0040.00417.51
8.1.20.0060.00317.48
8.1.10.0030.00617.42
8.1.00.0040.00417.32
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0080.00018.30
8.0.270.0000.00817.23
8.0.260.0030.00316.80
8.0.250.0000.00716.96
8.0.240.0060.00316.92
8.0.230.0000.00916.84
8.0.220.0000.00816.70
8.0.210.0040.00416.83
8.0.200.0060.00016.89
8.0.190.0080.00016.81
8.0.180.0000.00716.82
8.0.170.0000.00816.86
8.0.160.0000.00716.89
8.0.150.0050.00216.83
8.0.140.0040.00416.70
8.0.130.0000.00513.33
8.0.120.0070.00016.80
8.0.110.0000.00716.72
8.0.100.0000.00716.77
8.0.90.0000.00716.79
8.0.80.0100.00616.86
8.0.70.0000.00816.87
8.0.60.0040.00416.81
8.0.50.0040.00416.76
8.0.30.0080.00816.98
8.0.20.0100.00817.40
8.0.10.0000.00716.94
8.0.00.0100.00616.50
7.4.330.0000.00515.55
7.4.320.0060.00016.54
7.4.300.0030.00316.51
7.4.290.0000.00716.42
7.4.280.0030.00316.32
7.4.270.0030.00316.50
7.4.260.0000.00716.36
7.4.250.0030.00316.39
7.4.240.0040.00416.42
7.4.230.0060.00016.34
7.4.220.0140.00416.55
7.4.210.0040.01016.38
7.4.200.0000.00716.53
7.4.160.0090.00716.47
7.4.150.0060.00917.40
7.4.140.0110.00917.86
7.4.130.0130.01016.51
7.4.120.0050.01316.40
7.4.110.0040.01116.37
7.4.100.0130.00716.34
7.4.90.0070.01016.43
7.4.80.0050.01119.39
7.4.70.0160.00016.57
7.4.60.0070.01016.41
7.4.50.0110.00416.51
7.4.40.0030.01416.34
7.4.30.0090.00616.22
7.4.00.0030.01014.88
7.3.330.0060.00013.02
7.3.320.0030.00312.92
7.3.310.0040.00416.12
7.3.300.0000.00616.17
7.3.290.0030.00316.22
7.3.280.0120.00616.22
7.3.270.0170.00717.40
7.3.260.0090.01116.38
7.3.250.0110.00616.43
7.3.240.0080.00816.34
7.3.230.0070.01516.44
7.3.210.0100.00716.30
7.3.200.0060.00916.45
7.3.190.0100.00716.37
7.3.180.0120.00316.33
7.3.170.0030.01216.32
7.3.160.0100.01016.35
7.2.330.0100.00716.45
7.2.320.0080.01316.38
7.2.310.0060.00916.57
7.2.300.0100.00716.29
7.2.290.0130.00916.67
7.2.60.0100.00316.91
7.2.00.0030.01019.32
7.1.200.0160.00315.40
7.1.100.0060.00618.11
7.1.70.0220.00715.09
7.1.60.0400.00435.00
7.1.50.0190.00934.72
7.1.40.0300.01332.49
7.1.30.0340.01732.74
7.1.20.0330.01032.49
7.1.10.0230.01014.55
7.1.00.0180.01114.57
7.0.200.0030.01016.34
7.0.190.0100.00316.56
7.0.180.0140.01414.48
7.0.170.0220.00614.23
7.0.160.0170.01214.32
7.0.150.0190.01214.18
7.0.140.0250.01014.34
7.0.130.0180.01214.48
7.0.120.0280.00414.75
7.0.110.0190.01514.24
7.0.100.0260.00914.30
7.0.90.0310.00914.40
7.0.80.0230.01014.52
7.0.70.0320.00314.39
7.0.60.0260.00714.17
7.0.50.0030.01016.12
7.0.40.0000.01616.40
7.0.30.0110.00816.57
7.0.20.0080.00616.42
7.0.10.0070.00716.34
7.0.00.0040.01116.25

preferences:
79.17 ms | 400 KiB | 5 Q