3v4l.org

run code in 500+ PHP versions simultaneously
<?php $x = 'a'; $b = 8; $c = 25; echo '1: '; echo (null ?? $x.'_1')."\n"; echo '2: '; echo ('notnull' ?? $x.'_1')."\n"; echo '3: '; echo ('notnull' ?? ($x.'_1'))."\n"; echo '4: '; echo ('notnull' ?? $b + 1)."\n"; echo '5: '; echo ('notnull' ?? $c > 1)."\n"; echo '6: '; echo ('notnull' ?? $b || $c)."\n"; echo ('7: '. 1 + $c ?? 2 + $b ?? 3); echo "\n"; echo '8: '. 1 + null ?? 2 + $b ?? 3; echo "\n";

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)
8.5.80.0100.00716.64
8.5.70.0090.00818.62
8.5.60.0070.01116.64
8.5.50.0070.00216.59
8.5.30.0060.01117.41
8.5.20.0080.01020.14
8.5.10.0130.00616.45
8.5.00.0130.01219.97
8.4.230.0050.00519.62
8.4.220.0090.00924.00
8.4.210.0070.00319.48
8.4.180.0110.01125.71
8.4.170.0120.00923.90
8.4.160.0110.01323.82
8.4.150.0070.00516.76
8.4.140.0080.01417.69
8.4.130.0060.00817.70
8.4.120.0130.00622.39
8.4.110.0070.00318.74
8.4.100.0130.00917.92
8.4.90.0100.01020.70
8.4.80.0060.00218.83
8.4.70.0120.00820.52
8.4.60.0050.01120.56
8.4.50.0080.00818.65
8.4.40.0070.01017.88
8.4.30.0100.00720.29
8.4.20.0120.00917.67
8.4.10.0040.00420.57
8.3.310.0120.00918.30
8.3.300.0100.01020.57
8.3.290.0090.01218.45
8.3.280.0070.00416.31
8.3.270.0100.00916.67
8.3.260.0100.00816.35
8.3.250.0110.00818.85
8.3.240.0150.00416.79
8.3.230.0110.00816.73
8.3.220.0080.01019.11
8.3.210.0110.00716.63
8.3.200.0060.00316.53
8.3.190.0040.00518.74
8.3.180.0110.00818.80
8.3.170.0060.01219.18
8.3.160.0130.00616.77
8.3.150.0140.00416.47
8.3.140.0090.00916.79
8.3.130.0040.00418.72
8.3.120.0050.00518.86
8.3.110.0060.00320.94
8.3.100.0040.00416.73
8.3.90.0040.01126.77
8.3.80.0030.00718.52
8.3.70.0140.00416.61
8.3.60.0120.00616.50
8.3.50.0140.00823.57
8.3.40.0100.00321.87
8.3.30.0090.01318.64
8.3.20.0060.00324.18
8.3.10.0040.00424.66
8.3.00.0030.00526.16
8.2.310.0160.00318.11
8.2.300.0120.00918.06
8.2.290.0140.00516.51
8.2.280.0120.00918.63
8.2.270.0080.00816.46
8.2.260.0120.00616.98
8.2.250.0060.00318.32
8.2.240.0000.01516.91
8.2.230.0040.00422.58
8.2.220.0040.00424.06
8.2.210.0000.00926.77
8.2.200.0090.00016.50
8.2.190.0110.00416.58
8.2.180.0090.00625.92
8.2.170.0140.00418.91
8.2.160.0030.01022.96
8.2.150.0040.00425.66
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0040.00426.35
8.2.110.0090.00020.97
8.2.100.0090.00317.97
8.2.90.0040.00419.22
8.2.80.0000.00817.97
8.2.70.0060.00317.50
8.2.60.0000.00918.05
8.2.50.0090.00018.07
8.2.40.0000.00817.97
8.2.30.0000.00717.94
8.2.20.0000.00718.01
8.2.10.0020.00519.30
8.2.00.0000.00719.20
8.1.340.0110.00917.77
8.1.330.0110.00816.43
8.1.320.0120.00717.86
8.1.310.0070.01116.46
8.1.300.0030.00517.74
8.1.290.0060.00330.84
8.1.280.0060.01225.92
8.1.270.0040.00423.99
8.1.260.0000.00728.09
8.1.250.0000.00828.09
8.1.240.0060.00321.27
8.1.230.0080.00417.42
8.1.220.0090.00017.74
8.1.210.0050.00318.77
8.1.200.0040.00417.35
8.1.190.0100.00017.23
8.1.180.0030.00618.10
8.1.170.0000.00818.63
8.1.160.0070.00018.77
8.1.150.0090.00018.76
8.1.140.0020.00518.76
8.1.130.0040.00422.04
8.1.120.0000.00717.48
8.1.110.0000.00817.49
8.1.100.0040.00417.44
8.1.90.0040.00417.49
8.1.80.0000.00917.44
8.1.70.0030.00517.34
8.1.60.0040.00417.47
8.1.50.0000.00817.55
8.1.40.0000.00817.49
8.1.30.0000.01017.64
8.1.20.0040.00417.61
8.1.10.0000.00817.49
8.1.00.0000.00717.48
8.0.300.0080.00018.77
8.0.290.0000.00716.75
8.0.280.0040.00418.37
8.0.270.0040.00417.95
8.0.260.0060.00020.24
8.0.250.0040.00416.91
8.0.240.0030.00717.03
8.0.230.0070.00016.92
8.0.220.0000.00716.92
8.0.210.0070.00016.91
8.0.200.0030.00316.91
8.0.190.0000.00717.00
8.0.180.0040.00417.06
8.0.170.0060.00316.96
8.0.160.0040.00416.93
8.0.150.0000.00716.90
8.0.140.0050.00216.92
8.0.130.0030.00313.34
8.0.120.0000.00716.95
8.0.110.0030.00516.84
8.0.100.0030.00516.94
8.0.90.0000.00716.93
8.0.80.0090.00616.96
8.0.70.0030.00517.01
8.0.60.0070.00017.02
8.0.50.0070.00017.00
8.0.30.0100.01317.01
8.0.20.0080.01117.11
8.0.10.0070.00017.13
8.0.00.0140.00716.78
7.4.330.0020.00215.55
7.4.320.0040.00416.34
7.4.300.0050.00216.54
7.4.290.0040.00416.47
7.4.280.0070.00016.29
7.4.270.0030.00316.37
7.4.260.0030.00513.16
7.4.250.0040.00416.41
7.4.240.0040.00416.55
7.4.230.0040.00416.47
7.4.220.0050.00216.31
7.4.210.0050.01316.49
7.4.200.0040.00416.62
7.4.130.0140.01116.62
7.4.120.0060.01216.59
7.4.110.0110.01116.43
7.4.100.0060.01116.36
7.4.90.0070.01116.22
7.4.80.0080.01216.55
7.4.70.0070.01116.67
7.4.60.0160.00316.44
7.4.50.0130.00516.49
7.4.40.0070.01316.55
7.4.30.0080.00816.49
7.4.20.0070.01016.56
7.4.10.0110.00716.64
7.4.00.0090.00916.32
7.3.330.0030.00316.17
7.3.320.0030.00313.11
7.3.310.0070.00016.38
7.3.300.0000.00716.36
7.3.290.0090.00716.36
7.3.260.0140.00316.54
7.3.230.0040.01616.48
7.3.220.0110.00716.52
7.3.210.0120.00616.34
7.3.200.0070.01116.54
7.3.190.0100.00716.58
7.3.180.0110.00616.27
7.3.170.0060.01016.51
7.3.160.0130.00716.32
7.3.150.0140.00316.45
7.3.140.0110.00616.39
7.3.130.0030.01516.39
7.3.120.0180.00016.38
7.3.110.0100.00716.25
7.3.100.0130.00316.27
7.3.90.0090.00916.52
7.3.80.0060.01116.46
7.3.70.0030.01416.26
7.3.60.0070.01116.36
7.3.50.0030.01516.38
7.3.40.0090.00916.21
7.3.30.0110.00616.45
7.3.20.0330.00616.39
7.3.10.0120.00616.50
7.3.00.0030.01316.36
7.2.340.0070.01016.44
7.2.330.0080.01016.33
7.2.320.0180.00016.53
7.2.310.0080.00816.77
7.2.300.0140.00316.50
7.2.290.0040.01516.50
7.2.280.0160.00316.64
7.2.270.0120.00616.42
7.2.260.0060.01216.52
7.2.250.0080.00816.70
7.2.240.0040.01416.69
7.2.230.0090.00916.78
7.2.220.0100.01216.63
7.2.210.0170.00016.43
7.2.200.0140.00616.48
7.2.190.0110.00916.46
7.2.180.0100.01016.43
7.2.170.0060.01416.66
7.2.160.0110.00816.56
7.2.150.0160.00316.73
7.2.140.0090.01116.50
7.2.130.0110.00816.58
7.2.120.0080.01616.52
7.2.110.0190.00616.54
7.2.100.0110.00916.74
7.2.90.0130.00616.64
7.2.80.0110.01116.55
7.2.70.0100.01116.63
7.2.60.0060.01216.52
7.2.50.0140.01416.41
7.2.40.0060.01416.55
7.2.30.0120.01216.59
7.2.20.0130.00716.60
7.2.10.0120.00916.50
7.2.00.0160.00416.47

preferences:
38.68 ms | 1563 KiB | 5 Q