3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $x = "4" . isset($a) ? $a : 2; var_dump($x); $a = 1; $x = "4" . $a ?? 2; var_dump($x);

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)
8.5.10.0090.01016.62
8.5.00.0110.00919.98
8.4.150.0020.00114.05
8.4.140.0130.01217.44
8.4.130.0110.01017.77
8.4.120.0100.01017.44
8.4.110.0080.00824.07
8.4.100.0110.01017.64
8.4.90.0130.00820.64
8.4.80.0110.00918.95
8.4.70.0030.00518.57
8.4.60.0060.00218.74
8.4.50.0080.01118.53
8.4.40.0060.01318.46
8.4.30.0110.00420.48
8.4.20.0160.00317.61
8.4.10.0160.00319.05
8.3.280.0110.01418.43
8.3.270.0130.00716.81
8.3.260.0130.00716.25
8.3.250.0100.00918.92
8.3.240.0110.00816.52
8.3.230.0080.00116.66
8.3.220.0120.00618.78
8.3.210.0020.00618.49
8.3.200.0060.00316.52
8.3.190.0090.00817.13
8.3.180.0110.00818.79
8.3.170.0050.00316.65
8.3.160.0040.00418.98
8.3.150.0060.01218.84
8.3.140.0040.00420.62
8.3.130.0120.01218.27
8.3.120.0040.01118.74
8.3.110.0110.00016.59
8.3.100.0070.01116.50
8.3.90.0040.00426.77
8.3.80.0090.00016.57
8.3.70.0070.01516.58
8.3.60.0130.00618.30
8.3.50.0130.00323.44
8.3.40.0040.01121.90
8.3.30.0110.00418.74
8.3.20.0080.00024.18
8.3.10.0080.00024.66
8.3.00.0040.00426.16
8.2.290.0080.00816.83
8.2.280.0110.00616.55
8.2.270.0150.00316.68
8.2.260.0060.00316.66
8.2.250.0070.01118.56
8.2.240.0030.00618.46
8.2.230.0040.00420.94
8.2.220.0090.00024.06
8.2.210.0060.00326.77
8.2.200.0060.00316.38
8.2.190.0120.00316.58
8.2.180.0040.01525.92
8.2.170.0000.01418.84
8.2.160.0100.00722.96
8.2.150.0000.00725.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0030.00519.41
8.2.110.0060.00320.98
8.2.100.0110.00017.85
8.2.90.0000.00817.97
8.2.80.0090.00019.12
8.2.70.0050.00317.46
8.2.60.0050.00317.63
8.2.50.0030.00618.05
8.2.40.0040.00420.01
8.2.30.0000.00717.94
8.2.20.0000.00718.04
8.2.10.0040.00419.17
8.2.00.0050.00319.25
8.1.330.0100.00916.05
8.1.320.0130.00615.98
8.1.310.0080.00015.96
8.1.300.0150.00320.35
8.1.290.0100.00030.84
8.1.280.0100.00725.92
8.1.270.0040.00423.99
8.1.260.0080.00026.35
8.1.250.0040.00728.09
8.1.240.0100.00019.52
8.1.230.0040.00720.98
8.1.220.0040.00417.78
8.1.210.0000.00818.77
8.1.200.0050.00317.35
8.1.190.0030.00617.22
8.1.180.0000.00918.10
8.1.170.0000.00718.51
8.1.160.0070.00018.73
8.1.150.0070.00018.73
8.1.140.0040.00420.65
8.1.130.0040.00420.13
8.1.120.0080.00017.39
8.1.110.0050.00317.28
8.1.100.0050.00317.31
8.1.90.0040.00417.38
8.1.80.0000.00817.40
8.1.70.0000.00717.44
8.1.60.0090.00017.48
8.1.50.0050.00317.57
8.1.40.0000.00917.52
8.1.30.0000.00717.64
8.1.20.0030.00617.54
8.1.10.0080.00017.54
8.1.00.0030.00517.45
8.0.300.0030.00520.12
8.0.290.0060.00316.75
8.0.280.0030.00318.44
8.0.270.0000.00717.93
8.0.260.0000.00618.52
8.0.250.0000.00816.99
8.0.240.0070.00016.82
8.0.230.0000.00716.81
8.0.220.0000.00716.78
8.0.210.0030.00316.89
8.0.200.0070.00016.95
8.0.190.0050.00216.84
8.0.180.0040.00416.90
8.0.170.0050.00316.92
8.0.160.0000.00816.77
8.0.150.0030.00316.93
8.0.140.0000.00716.88
8.0.130.0000.00513.27
8.0.120.0070.00016.86
8.0.110.0030.00316.72
8.0.100.0000.00816.78
8.0.90.0000.00716.82
8.0.80.0100.00816.71
8.0.70.0000.00816.70
8.0.60.0040.00416.82
8.0.50.0040.00416.73
8.0.30.0100.00717.21
8.0.20.0090.00917.02
8.0.10.0070.00016.94
8.0.00.0120.00916.74
7.4.330.0000.00415.55
7.4.320.0060.00016.35
7.4.300.0000.00716.37
7.4.290.0040.00416.48
7.4.280.0090.00016.42
7.4.270.0000.00716.48
7.4.260.0000.00613.13
7.4.250.0000.00716.41
7.4.240.0000.00716.55
7.4.230.0040.00416.34
7.4.220.0030.00316.46
7.4.210.0080.00816.52
7.4.200.0030.00316.46
7.4.130.0140.00716.52
7.4.120.0100.01016.47
7.4.110.0110.00716.52
7.4.100.0110.00716.45
7.4.90.0090.00916.41
7.4.80.0130.00716.36
7.4.70.0100.01216.48
7.4.60.0070.01416.16
7.4.50.0090.01516.54
7.4.40.0040.01316.23
7.4.30.0120.01216.24
7.4.20.0070.01116.36
7.4.10.0140.00716.33
7.4.00.0080.01116.40
7.3.330.0030.00316.33
7.3.320.0050.00013.09
7.3.310.0040.00416.15
7.3.300.0030.00316.28
7.3.290.0080.01016.26
7.3.260.0200.00316.66
7.3.240.0090.01116.29
7.3.230.0120.00616.34
7.3.220.0180.00316.33
7.3.210.0140.00616.50
7.3.200.0130.00916.16
7.3.190.0070.01016.25
7.3.180.0140.00416.26
7.3.170.0040.01316.48
7.3.160.0140.00716.29
7.3.150.0100.01016.54
7.3.140.0180.00316.17
7.3.130.0160.00616.29
7.3.120.0140.00416.24
7.3.110.0150.01216.34
7.3.100.0130.00316.38
7.3.90.0030.01516.11
7.3.80.0060.01316.41
7.3.70.0070.01016.28
7.3.60.0170.00016.40
7.3.50.0100.01316.18
7.3.40.0140.00416.25
7.3.30.0110.01116.23
7.3.20.0050.01316.21
7.3.10.0130.01016.32
7.3.00.0150.01316.35
7.2.340.0060.01216.56
7.2.330.0080.01116.61
7.2.320.0030.01616.58
7.2.310.0080.01116.52
7.2.300.0090.00916.57
7.2.290.0070.01016.52
7.2.280.0140.00516.46
7.2.270.0110.01116.48
7.2.260.0110.01116.61
7.2.250.0200.00316.51
7.2.240.0110.01016.38
7.2.230.0090.00916.53
7.2.220.0140.00916.34
7.2.210.0060.01216.59
7.2.200.0080.01716.26
7.2.190.0140.00516.54
7.2.180.0120.01216.41
7.2.170.0070.01716.43
7.2.160.0040.01816.56
7.2.150.0070.01516.38
7.2.140.0100.01016.62
7.2.130.0030.02016.50
7.2.120.0060.01216.38
7.2.110.0090.00916.64
7.2.100.0090.01716.49
7.2.90.0140.01116.42
7.2.80.0140.00716.52
7.2.70.0060.01216.69
7.2.60.0180.00916.36
7.2.50.0070.01316.37
7.2.40.0140.00416.61
7.2.30.0060.01316.65
7.2.20.0160.00316.43
7.2.10.0100.00716.52
7.2.00.0060.01216.59

preferences:
33.79 ms | 403 KiB | 5 Q