3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = ['test' => ['2' => 'lol']]; if(!array_key_exists('test', $test) || !array_key_exists('test', $test['2'])) { echo "hello"; } var_dump(isset($test['lol']['lol']));

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)
8.3.60.0090.00618.68
8.3.50.0080.00616.50
8.3.40.0110.00318.71
8.3.30.0110.00718.45
8.3.20.0030.00519.10
8.3.10.0040.00423.66
8.3.00.0080.00019.18
8.2.180.0040.01118.66
8.2.170.0090.00622.96
8.2.160.0100.00320.52
8.2.150.0070.00025.66
8.2.140.0060.00324.66
8.2.130.0050.00319.82
8.2.120.0070.00026.35
8.2.110.0060.00320.52
8.2.100.0110.00018.03
8.2.90.0040.00418.18
8.2.80.0050.00317.97
8.2.70.0000.00818.03
8.2.60.0000.00817.97
8.2.50.0000.00818.10
8.2.40.0000.00720.47
8.2.30.0060.00419.24
8.2.20.0040.00418.11
8.2.10.0030.00618.14
8.2.00.0040.00417.67
8.1.280.0040.01125.92
8.1.270.0050.00322.05
8.1.260.0000.00828.09
8.1.250.0080.00028.09
8.1.240.0040.00423.92
8.1.230.0070.00421.01
8.1.220.0060.00317.79
8.1.210.0030.00618.77
8.1.200.0080.00017.35
8.1.190.0080.00017.35
8.1.180.0050.00318.10
8.1.170.0040.00418.65
8.1.160.0070.00018.85
8.1.150.0000.00820.30
8.1.140.0040.00419.54
8.1.130.0030.00317.71
8.1.120.0000.00817.53
8.1.110.0060.00317.33
8.1.100.0040.00417.46
8.1.90.0040.00417.38
8.1.80.0040.00417.46
8.1.70.0000.00817.46
8.1.60.0080.00017.61
8.1.50.0080.00017.53
8.1.40.0000.00817.42
8.1.30.0000.00817.59
8.1.20.0000.00717.54
8.1.10.0000.01017.48
8.1.00.0050.00317.52
8.0.300.0070.00019.74
8.0.290.0040.00416.73
8.0.280.0030.00318.36
8.0.270.0000.00817.27
8.0.260.0000.00817.22
8.0.250.0050.00316.91
8.0.240.0070.00016.91
8.0.230.0050.00217.05
8.0.220.0050.00216.96
8.0.210.0000.00716.89
8.0.200.0060.00016.90
8.0.190.0030.00316.94
8.0.180.0080.00016.93
8.0.170.0040.00316.86
8.0.160.0040.00417.02
8.0.150.0070.00016.93
8.0.140.0070.00016.90
8.0.130.0000.00613.42
8.0.120.0000.00816.93
8.0.110.0040.00416.77
8.0.100.0000.00716.94
8.0.90.0070.00016.83
8.0.80.0150.00616.90
8.0.70.0050.00216.86
8.0.60.0040.00416.78
8.0.50.0070.00016.75
8.0.30.0090.00917.22
8.0.20.0120.00917.40
8.0.10.0050.00317.07
8.0.00.0070.01016.53
7.4.330.0060.00015.55
7.4.320.0060.00016.49
7.4.300.0030.00316.45
7.4.290.0000.00716.59
7.4.280.0070.00016.58
7.4.270.0060.00016.52
7.4.260.0030.00316.50
7.4.250.0040.00416.49
7.4.240.0000.00716.61
7.4.230.0000.00716.70
7.4.220.0060.01316.54
7.4.210.0110.00316.54
7.4.200.0020.00516.70
7.4.160.0080.00816.56
7.4.150.0110.00617.40
7.4.140.0080.00917.86
7.4.130.0110.00616.46
7.4.120.0080.01016.49
7.4.110.0160.00716.43
7.4.100.0030.01316.72
7.4.90.0100.00716.69
7.4.80.0100.01019.39
7.4.70.0050.01116.56
7.4.60.0100.00716.47
7.4.50.0040.00816.59
7.4.40.0080.00816.50
7.4.30.0040.01316.47
7.4.00.0070.00415.20
7.3.330.0050.00013.09
7.3.320.0000.00613.31
7.3.310.0030.00516.17
7.3.300.0040.00416.22
7.3.290.0100.00616.40
7.3.280.0090.00916.39
7.3.270.0080.00817.40
7.3.260.0070.00916.38
7.3.250.0090.00916.37
7.3.240.0110.01016.44
7.3.230.0150.00716.39
7.3.210.0090.00716.26
7.3.200.0110.00616.49
7.3.190.0100.00716.39
7.3.180.0030.01416.22
7.3.170.0040.01116.54
7.3.160.0110.00616.30
7.2.330.0110.00616.66
7.2.320.0180.00016.66
7.2.310.0060.01016.46
7.2.300.0160.01016.65
7.2.290.0090.00916.66
7.2.60.0000.01116.86
7.2.50.0060.00316.91
7.1.200.0060.00315.61
7.1.70.0000.00816.86
7.1.60.0080.00317.27
7.1.00.1170.06320.66
7.0.200.0100.00316.77
7.0.130.0500.06020.30
7.0.120.0400.06720.30
7.0.110.0370.05720.15
7.0.100.0570.08020.29
7.0.90.0270.06720.13
7.0.80.0430.07720.33
7.0.70.0330.06320.33
7.0.60.1470.05020.21
7.0.50.0570.06320.38
7.0.40.0430.05720.33
7.0.30.0370.06320.25
7.0.20.0530.07320.25
7.0.10.0400.06320.32
7.0.00.0370.05720.19
5.6.280.0130.06321.12
5.6.270.0130.06020.89
5.6.260.0170.05321.07
5.6.250.0100.08021.06
5.6.240.0230.05321.15
5.6.230.0130.05720.81
5.6.220.0130.05320.95
5.6.210.0030.06320.93
5.6.200.0170.05320.73
5.6.190.0170.07020.86
5.6.180.0200.06020.85
5.6.170.0070.07021.04
5.6.160.0230.05320.83
5.6.150.0130.05721.07
5.6.140.0130.05720.77
5.6.130.0100.06721.04
5.6.120.0070.06720.83
5.6.110.0100.06021.01
5.6.100.0170.06320.84
5.6.90.0170.05020.97
5.6.80.0070.06020.42
5.6.70.0070.05720.15
5.6.60.0100.06320.38
5.6.50.0100.06020.28
5.6.40.0230.05320.31
5.6.30.0170.05020.41
5.6.20.0130.05320.41
5.6.10.0100.05320.17
5.6.00.0170.05020.33

preferences:
59.18 ms | 400 KiB | 5 Q