3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = ['a' => ['b' => 1], 'c' => '']; var_dump( $x['a']['c'] ?? '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)
8.3.60.0070.00718.43
8.3.50.0130.00717.81
8.3.40.0120.00318.71
8.3.30.0080.01118.71
8.3.20.0070.00019.11
8.3.10.0080.00021.08
8.3.00.0000.00823.70
8.2.180.0150.00616.75
8.2.170.0130.00322.96
8.2.160.0150.00420.17
8.2.150.0040.00424.18
8.2.140.0090.00024.66
8.2.130.0070.00019.64
8.2.120.0040.00426.35
8.2.110.0060.00322.25
8.2.100.0060.00617.72
8.2.90.0030.00617.75
8.2.80.0000.00818.78
8.2.70.0060.00318.05
8.2.60.0000.00817.93
8.2.50.0070.00418.10
8.2.40.0000.00719.34
8.2.30.0070.00019.48
8.2.20.0000.00818.05
8.2.10.0040.00417.93
8.2.00.0070.00019.27
8.1.280.0100.00625.92
8.1.270.0060.00321.99
8.1.260.0000.00926.35
8.1.250.0040.00428.09
8.1.240.0040.00418.82
8.1.230.0070.00422.20
8.1.220.0050.00317.74
8.1.210.0030.00518.77
8.1.200.0060.00318.89
8.1.190.0000.00817.09
8.1.180.0000.00718.10
8.1.170.0080.00018.52
8.1.160.0000.00818.89
8.1.150.0040.00418.82
8.1.140.0040.00417.54
8.1.130.0080.00018.92
8.1.120.0000.00717.29
8.1.110.0060.00317.45
8.1.100.0070.00017.33
8.1.90.0080.00017.42
8.1.80.0070.00017.41
8.1.70.0050.00317.40
8.1.60.0060.00317.54
8.1.50.0030.00617.50
8.1.40.0000.00817.55
8.1.30.0000.00817.71
8.1.20.0050.00517.52
8.1.10.0000.00717.51
8.1.00.0030.00517.44
8.0.300.0070.00018.77
8.0.290.0060.00316.63
8.0.280.0030.00318.29
8.0.270.0040.00417.17
8.0.260.0030.00517.21
8.0.250.0030.00516.77
8.0.240.0070.00016.95
8.0.230.0070.00016.75
8.0.220.0030.00316.85
8.0.210.0030.00316.73
8.0.200.0000.00616.90
8.0.190.0040.00416.84
8.0.180.0000.00916.83
8.0.170.0050.00316.86
8.0.160.0020.00516.81
8.0.150.0080.00016.77
8.0.140.0040.00416.78
8.0.130.0030.00313.25
8.0.120.0070.00016.64
8.0.110.0080.00016.82
8.0.100.0080.00016.87
8.0.90.0000.00716.85
8.0.80.0100.00716.87
8.0.70.0000.00716.81
8.0.60.0040.00416.79
8.0.50.0000.00716.78
8.0.30.0110.00916.88
8.0.20.0140.00517.40
8.0.10.0040.00416.98
8.0.00.0060.01216.84
7.4.330.0040.00015.55
7.4.320.0060.00016.46
7.4.300.0000.00616.43
7.4.290.0000.00716.45
7.4.280.0080.00016.52
7.4.270.0000.00616.54
7.4.260.0030.00316.33
7.4.250.0040.00416.41
7.4.240.0030.00416.46
7.4.230.0040.00416.43
7.4.220.0040.00416.59
7.4.210.0110.00716.54
7.4.200.0000.00716.45
7.4.160.0090.00816.40
7.4.140.0080.00917.86
7.4.130.0100.00716.52
7.4.120.0110.00816.47
7.4.110.0070.01016.43
7.4.100.0120.00916.55
7.4.90.0030.01416.44
7.4.80.0120.01219.39
7.4.70.0130.00316.34
7.4.60.0120.00416.47
7.4.50.0180.00016.64
7.4.40.0090.00916.58
7.4.00.0050.01014.81
7.3.330.0000.00513.04
7.3.320.0060.00012.96
7.3.310.0030.00316.25
7.3.300.0040.00416.29
7.3.290.0030.00316.10
7.3.280.0100.00716.18
7.3.260.0110.00716.24
7.3.240.0110.00916.33
7.3.230.0030.01316.09
7.3.210.0060.01116.37
7.3.200.0070.01016.57
7.3.190.0110.00616.49
7.3.180.0100.00716.14
7.3.170.0170.00316.36
7.3.160.0090.00616.61
7.3.120.0060.01214.63
7.3.110.0030.01314.95
7.3.100.0030.01314.88
7.3.90.0040.01114.59
7.3.80.0090.00614.93
7.3.70.0130.00314.88
7.3.60.0090.00014.54
7.3.50.0070.00714.85
7.3.40.0030.00914.58
7.3.30.0000.01014.88
7.3.20.0140.00716.44
7.3.10.0020.01216.42
7.3.00.0030.00916.68
7.2.330.0090.00916.56
7.2.320.0120.00616.56
7.2.310.0120.00916.57
7.2.300.0060.00916.23
7.2.290.0090.00616.21
7.2.250.0040.01515.12
7.2.240.0030.01315.08
7.2.230.0090.00615.08
7.2.220.0050.00514.60
7.2.210.0070.01015.13
7.2.200.0030.01014.92
7.2.190.0040.01114.92
7.2.180.0070.00715.01
7.2.170.0030.00614.98
7.2.130.0040.00716.86
7.2.120.0080.00416.82
7.2.110.0040.00716.89
7.2.100.0030.00616.75
7.2.90.0030.01016.77
7.2.80.0100.00716.93
7.2.70.0120.00016.89
7.2.60.0150.00515.84
7.2.50.0130.00515.73
7.2.40.0090.01215.78
7.2.30.0100.01015.82
7.2.20.0140.00515.76
7.2.10.0100.00915.64
7.2.00.0080.01015.66
7.1.330.0080.00815.62
7.1.320.0110.00415.80
7.1.310.0120.00015.59
7.1.300.0060.00915.80
7.1.290.0070.00715.63
7.1.280.0040.01215.42
7.1.270.0030.01015.64
7.1.260.0030.01715.79
7.1.250.0030.01015.53
7.1.200.0060.00315.64
7.1.170.0200.00713.70
7.1.160.0220.00413.40
7.1.150.0160.00813.80
7.1.140.0110.01113.53
7.1.130.0250.01513.63
7.1.120.0200.00813.72
7.1.110.0170.00613.09
7.1.100.0140.00513.23
7.1.90.0140.00713.24
7.1.80.0090.01213.44
7.1.70.0110.01013.38
7.1.60.0340.01131.70
7.1.50.0360.02131.62
7.1.40.0350.01631.24
7.1.30.0310.01731.52
7.1.20.0340.00631.55
7.1.10.0120.00613.07
7.1.00.0120.00813.75

preferences:
65.8 ms | 400 KiB | 5 Q