3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ['a' => ['b' => 1], 'c' => '']; var_dump( $x['a']['b'] ?? 'not');

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)
8.3.40.0060.00918.58
8.3.30.0090.00618.67
8.3.20.0000.00719.16
8.3.10.0040.00421.15
8.3.00.0000.00723.65
8.2.170.0210.00022.96
8.2.160.0090.00620.53
8.2.150.0070.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00419.70
8.2.120.0040.00426.35
8.2.110.0060.00319.30
8.2.100.0040.00817.91
8.2.90.0050.00317.75
8.2.80.0040.00418.78
8.2.70.0050.00317.93
8.2.60.0040.00418.04
8.2.50.0070.00318.10
8.2.40.0070.00019.42
8.2.30.0040.00419.43
8.2.20.0000.00717.93
8.2.10.0000.00717.94
8.2.00.0030.00319.36
8.1.270.0000.00822.15
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0110.00021.87
8.1.230.0100.00020.91
8.1.220.0030.00517.74
8.1.210.0040.00418.91
8.1.200.0000.01019.01
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0040.00418.57
8.1.160.0040.00418.86
8.1.150.0000.00718.79
8.1.140.0000.00717.63
8.1.130.0000.01019.06
8.1.120.0040.00417.40
8.1.110.0000.00817.28
8.1.100.0030.00317.42
8.1.90.0000.00717.31
8.1.80.0030.00317.37
8.1.70.0070.00017.41
8.1.60.0110.00017.65
8.1.50.0070.00017.50
8.1.40.0000.00817.56
8.1.30.0000.00917.71
8.1.20.0000.00717.64
8.1.10.0040.00417.45
8.1.00.0040.00417.51
8.0.300.0070.00019.93
8.0.290.0000.00816.58
8.0.280.0070.00018.25
8.0.270.0040.00417.18
8.0.260.0070.00017.25
8.0.250.0070.00316.92
8.0.240.0040.00416.89
8.0.230.0000.00716.85
8.0.220.0030.00316.79
8.0.210.0040.00416.73
8.0.200.0000.00616.88
8.0.190.0000.00716.82
8.0.180.0040.00416.75
8.0.170.0030.00616.83
8.0.160.0080.00016.91
8.0.150.0070.00016.80
8.0.140.0070.00016.69
8.0.130.0030.00313.21
8.0.120.0040.00416.82
8.0.110.0050.00316.87
8.0.100.0040.00416.88
8.0.90.0000.00816.80
8.0.80.0110.00516.79
8.0.70.0000.00716.89
8.0.60.0000.00716.79
8.0.50.0000.00716.71
8.0.30.0090.00816.83
8.0.20.0100.01317.40
8.0.10.0000.00716.92
8.0.00.0080.01216.79
7.4.330.0030.00315.55
7.4.320.0030.00316.60
7.4.300.0070.00016.40
7.4.290.0060.00016.45
7.4.280.0000.00716.44
7.4.270.0040.00416.58
7.4.260.0060.00016.47
7.4.250.0040.00416.46
7.4.240.0080.00016.43
7.4.230.0050.00216.33
7.4.220.0000.00716.52
7.4.210.0060.01016.59
7.4.200.0030.00316.33
7.4.160.0070.00916.42
7.4.140.0090.00817.86
7.4.130.0140.00316.43
7.4.120.0120.00816.51
7.4.110.0060.00916.28
7.4.100.0070.00916.51
7.4.90.0160.00016.30
7.4.80.0090.00919.39
7.4.70.0070.01016.66
7.4.60.0120.00416.34
7.4.50.0060.00616.59
7.4.40.0060.01216.69
7.4.00.0120.00714.89
7.3.330.0020.00213.04
7.3.320.0000.00613.13
7.3.310.0030.00316.15
7.3.300.0030.00316.09
7.3.290.0030.00516.09
7.3.280.0070.01116.27
7.3.260.0100.00816.39
7.3.240.0090.00916.26
7.3.230.0130.00716.40
7.3.210.0060.01216.48
7.3.200.0130.00316.55
7.3.190.0080.00816.09
7.3.180.0090.01216.33
7.3.170.0030.01316.21
7.3.160.0130.00316.19
7.3.120.0110.00714.62
7.3.110.0020.01414.84
7.3.100.0070.00614.57
7.3.90.0060.00814.78
7.3.80.0030.01014.44
7.3.70.0070.00314.66
7.3.60.0030.01114.71
7.3.50.0080.00514.66
7.3.40.0060.00814.56
7.3.30.0030.00814.52
7.3.20.0030.01016.42
7.3.10.0100.00216.61
7.3.00.0030.01016.52
7.2.330.0110.00916.54
7.2.320.0070.01016.24
7.2.310.0150.00416.39
7.2.300.0030.01316.52
7.2.290.0030.01316.52
7.2.250.0060.01115.09
7.2.240.0040.01514.60
7.2.230.0050.00514.93
7.2.220.0080.00415.06
7.2.210.0070.00715.10
7.2.200.0050.00914.81
7.2.190.0070.00914.67
7.2.180.0070.00914.75
7.2.170.0080.00514.90
7.2.160.0080.00814.95
7.2.150.0030.00616.74
7.2.140.0060.00616.82
7.2.130.0060.01116.78
7.2.120.0110.00616.77
7.2.110.0170.00816.72
7.2.100.0040.00716.88
7.2.90.0030.01016.88
7.2.80.0050.00816.58
7.2.70.0130.00316.73
7.2.60.0090.01015.60
7.2.50.0100.01115.96
7.2.40.0100.00716.02
7.2.30.0300.01015.67
7.2.20.0110.00815.87
7.2.10.0110.00515.58
7.2.00.0090.00915.69
7.1.330.0050.00915.71
7.1.320.0080.00515.65
7.1.310.0050.00915.62
7.1.300.0030.00815.88
7.1.290.0050.01015.55
7.1.280.0040.01015.64
7.1.270.0060.00915.50
7.1.260.0030.00815.90
7.1.250.0090.00615.69
7.1.200.0030.00715.82
7.1.170.0130.01613.55
7.1.160.0220.00313.57
7.1.150.0180.00713.86
7.1.140.0150.00713.66
7.1.130.0160.00613.70
7.1.120.0110.01213.67
7.1.110.0140.00813.41
7.1.100.0110.01113.59
7.1.90.0120.01213.36
7.1.80.0140.01013.42
7.1.70.0170.00313.29
7.1.60.0320.00831.39
7.1.50.0260.01331.45
7.1.40.0220.01331.61
7.1.30.0220.01531.37
7.1.20.0300.00731.68
7.1.10.0160.00313.16
7.1.00.0140.00713.78

preferences:
57.2 ms | 400 KiB | 5 Q