3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('l' => 'foo'); var_dump(isset($a[null])); var_dump(isset($a['4'])); var_dump(isset($a['l']));

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)
8.3.60.0100.00618.45
8.3.50.0120.00621.88
8.3.40.0070.00718.59
8.3.30.0070.00719.01
8.3.20.0000.00720.15
8.3.10.0040.00423.46
8.3.00.0000.00820.95
8.2.180.0070.01418.29
8.2.170.0100.00322.96
8.2.160.0130.00020.38
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00420.86
8.2.110.0060.00320.47
8.2.100.0070.00418.08
8.2.90.0000.01018.96
8.2.80.0110.00017.97
8.2.70.0030.00617.50
8.2.60.0030.00617.80
8.2.50.0070.00018.34
8.2.40.0030.00620.42
8.2.30.0000.00819.25
8.2.20.0070.00017.60
8.2.10.0000.00717.80
8.2.00.0000.00817.67
8.1.280.0090.00925.92
8.1.270.0040.00421.93
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0140.00719.14
8.1.230.0070.00320.29
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0000.00917.23
8.1.190.0060.00317.23
8.1.180.0000.00818.10
8.1.170.0030.00618.49
8.1.160.0040.00418.82
8.1.150.0000.00720.10
8.1.140.0000.00817.32
8.1.130.0070.00017.82
8.1.120.0000.00717.40
8.1.110.0000.00717.27
8.1.100.0050.00317.37
8.1.90.0040.00417.43
8.1.80.0040.00417.41
8.1.70.0040.00417.30
8.1.60.0000.00817.44
8.1.50.0030.00617.41
8.1.40.0070.00017.48
8.1.30.0030.00517.46
8.1.20.0040.00417.50
8.1.10.0000.00717.49
8.1.00.0000.00717.49
8.0.300.0040.00418.77
8.0.290.0000.00716.63
8.0.280.0080.00018.30
8.0.270.0000.00817.10
8.0.260.0000.00617.20
8.0.250.0040.00416.89
8.0.240.0100.00016.90
8.0.230.0030.00316.96
8.0.220.0070.00016.76
8.0.210.0000.00716.87
8.0.200.0060.00316.84
8.0.190.0030.00316.88
8.0.180.0050.00316.72
8.0.170.0000.00816.85
8.0.160.0030.00316.70
8.0.150.0040.00716.74
8.0.140.0000.00816.73
8.0.130.0030.00613.34
8.0.120.0000.00716.80
8.0.110.0080.00016.82
8.0.100.0070.00016.93
8.0.90.0000.00716.88
8.0.80.0080.01516.83
8.0.70.0040.00416.69
8.0.60.0030.00316.78
8.0.50.0030.00516.76
8.0.30.0090.00916.84
8.0.20.0060.01217.40
8.0.10.0070.00016.73
8.0.00.0090.00816.69
7.4.330.0000.00515.00
7.4.320.0030.00316.34
7.4.300.0060.00016.38
7.4.290.0070.00016.54
7.4.280.0070.00016.52
7.4.270.0030.00316.48
7.4.260.0110.00016.38
7.4.250.0040.00416.48
7.4.240.0000.00716.56
7.4.230.0000.00716.60
7.4.220.0070.01116.39
7.4.210.0070.00716.51
7.4.200.0030.00516.55
7.4.160.0100.01016.61
7.4.150.0060.01217.40
7.4.140.0110.00517.86
7.4.130.0100.01116.40
7.4.120.0070.01016.39
7.4.110.0030.01316.53
7.4.100.0060.01216.50
7.4.90.0110.00616.52
7.4.80.0070.01019.39
7.4.70.0060.01116.24
7.4.60.0100.00716.33
7.4.50.0000.00816.45
7.4.40.0070.00816.31
7.4.30.0030.01316.66
7.4.00.0060.01014.93
7.3.330.0000.00513.03
7.3.320.0060.00013.04
7.3.310.0040.00416.26
7.3.300.0030.00316.21
7.3.290.0110.00316.18
7.3.280.0100.00816.18
7.3.270.0150.00417.40
7.3.260.0130.00316.10
7.3.250.0100.01016.24
7.3.240.0100.01016.43
7.3.230.0130.00316.39
7.3.210.0120.00616.06
7.3.200.0120.00919.39
7.3.190.0150.00616.50
7.3.180.0060.00916.06
7.3.170.0130.00416.27
7.3.160.0070.00816.29
7.3.120.0000.01414.91
7.3.10.0040.01116.75
7.3.00.0070.00616.55
7.2.330.0110.00716.23
7.2.320.0060.00916.48
7.2.310.0090.00616.32
7.2.300.0090.00816.41
7.2.290.0130.01016.46
7.2.130.0080.00716.65
7.2.120.0030.00916.57
7.2.110.0040.00916.65
7.2.100.0070.00716.72
7.2.90.0060.00816.59
7.2.80.0090.00416.68
7.2.70.0060.00916.54
7.2.60.0070.00716.67
7.2.50.0070.00616.72
7.2.40.0030.01016.79
7.2.30.0050.00916.84
7.2.20.0110.00216.59
7.2.10.0040.00916.61
7.2.00.0090.00417.25
7.1.250.0050.00715.71
7.1.240.0080.00215.67
7.1.230.0000.01315.44
7.1.220.0050.00915.63
7.1.210.0090.00315.68
7.1.200.0060.00815.68
7.1.190.0080.00415.79
7.1.180.0040.00715.58
7.1.170.0050.00515.63
7.1.160.0090.00315.70
7.1.150.0070.00615.65
7.1.140.0030.00915.60
7.1.130.0050.00615.74
7.1.120.0060.00915.76
7.1.110.0050.01015.62
7.1.100.0060.00816.41
7.1.90.0070.00815.48
7.1.80.0060.00615.79
7.1.70.0040.01116.11
7.1.60.0030.01316.98
7.1.50.0090.00915.96
7.1.40.0030.00815.46
7.1.30.0110.00215.74
7.1.20.0060.00815.51
7.1.10.0050.00915.59
7.1.00.0060.03017.88
7.0.330.0110.00414.99
7.0.320.0060.00615.22
7.0.310.0050.01015.23
7.0.300.0120.00114.97
7.0.290.0130.00215.06
7.0.280.0060.00615.21
7.0.270.0060.00815.26
7.0.260.0100.00315.08
7.0.250.0100.00615.39
7.0.240.0090.00415.39
7.0.230.0100.00615.24
7.0.220.0090.00515.31
7.0.210.0090.00715.42
7.0.200.0060.00415.68
7.0.190.0130.00215.16
7.0.180.0060.00915.28
7.0.170.0100.00615.39
7.0.160.0040.00715.11
7.0.150.0080.00515.03
7.0.140.0060.02717.49
7.0.130.0090.00615.34
7.0.120.0100.00615.41
7.0.110.0080.00715.42
7.0.100.0060.03216.80
7.0.90.0120.01916.83
7.0.80.0130.01916.82
7.0.70.0060.02716.74
7.0.60.0080.01616.89
7.0.50.0050.01716.92
7.0.40.0040.01915.50
7.0.30.0110.01915.58
7.0.20.0080.01515.54
7.0.10.0050.02015.42
7.0.00.0080.01815.60
5.6.380.0050.00714.39
5.6.370.0050.00714.24
5.6.360.0050.00614.23
5.6.350.0090.00414.19
5.6.340.0050.01214.22
5.6.330.0060.00814.21
5.6.320.0060.00914.37
5.6.310.0060.00714.52
5.6.300.0040.01014.23
5.6.290.0070.00514.29
5.6.280.0050.02916.55
5.6.270.0070.00414.24
5.6.260.0060.00814.15
5.6.250.0060.02416.33
5.6.240.0060.02116.40
5.6.230.0050.01716.31
5.6.220.0080.01516.49
5.6.210.0060.01716.30
5.6.200.0090.01716.45
5.6.190.0070.01916.45
5.6.180.0050.01916.64
5.6.170.0060.01916.47
5.6.160.0040.01916.35
5.6.150.0050.01816.45
5.6.140.0070.02016.44
5.6.130.0090.01816.45
5.6.120.0100.01616.46
5.6.110.0060.01916.37
5.6.100.0060.02616.63
5.6.90.0080.03116.53
5.6.80.0050.03016.18
5.6.70.0070.03116.14
5.6.60.0070.02816.27
5.6.50.0060.01916.15
5.6.40.0040.03216.14
5.6.30.0070.03316.21
5.6.20.0090.03316.07
5.6.10.0060.03116.27
5.6.00.0040.02016.07
5.5.380.0020.03414.12
5.5.370.0050.02214.31
5.5.360.0080.01414.15
5.5.350.0060.01714.27
5.5.340.0080.02614.45
5.5.330.0060.01614.30
5.5.320.0050.01714.37
5.5.310.0040.01814.37
5.5.300.0050.01814.31
5.5.290.0060.01514.31
5.5.280.0100.02114.34
5.5.270.0050.01614.25
5.5.260.0090.02914.30
5.5.250.0070.02914.26
5.5.240.0080.02614.16
5.5.230.0060.02914.11
5.5.220.0050.03013.99
5.5.210.0060.02914.06
5.5.200.0060.03114.13
5.5.190.0030.02314.08
5.5.180.0050.02114.07
5.5.170.0080.00212.36
5.5.160.0060.01814.17
5.5.150.0070.02314.11
5.5.140.0050.02914.07
5.5.130.0060.02914.12
5.5.120.0090.02514.15
5.5.110.0040.03214.09
5.5.100.0050.02014.13
5.5.90.0030.01914.05
5.5.80.0070.02714.06
5.5.70.0110.02514.02
5.5.60.0070.02813.95
5.5.50.0120.02313.95
5.5.40.0080.02814.10
5.5.30.0060.03214.04
5.5.20.0040.02114.06
5.5.10.0050.01814.08
5.5.00.0100.02514.08
5.4.450.0070.01613.89
5.4.440.0070.01613.86
5.4.430.0030.02113.88
5.4.420.0040.02313.80
5.4.410.0050.03213.73
5.4.400.0040.02913.61
5.4.390.0090.02513.77
5.4.380.0020.03213.72
5.4.370.0070.02713.75
5.4.360.0050.03013.63
5.4.350.0070.02813.68
5.4.340.0050.02913.62
5.4.330.0050.00711.04
5.4.320.0080.02813.70
5.4.310.0100.02413.70
5.4.300.0060.02913.77
5.4.290.0060.02813.65
5.4.280.0070.02613.75
5.4.270.0070.02913.69
5.4.260.0050.03113.71
5.4.250.0050.01813.73
5.4.240.0070.02313.76
5.4.230.0090.02313.64
5.4.220.0050.02013.67
5.4.210.0050.02913.70
5.4.200.0050.02713.78
5.4.190.0090.02413.79
5.4.180.0040.02513.71
5.4.170.0070.02013.68
5.4.160.0110.01313.72
5.4.150.0060.01813.73
5.4.140.0090.02512.76
5.4.130.0070.02612.76
5.4.120.0050.02712.75
5.4.110.0080.02612.74
5.4.100.0050.02812.93
5.4.90.0060.02812.74
5.4.80.0060.02512.84
5.4.70.0040.02712.80
5.4.60.0060.02912.69
5.4.50.0020.03012.78
5.4.40.0050.02712.76
5.4.30.0070.02712.85
5.4.20.0060.02212.80
5.4.10.0070.02312.78
5.4.00.0090.01912.62
5.3.290.0070.02812.13
5.3.280.0080.02812.10
5.3.270.0040.03112.04
5.3.260.0040.03112.11
5.3.250.0060.02912.11
5.3.240.0070.01812.07
5.3.230.0070.02712.08
5.3.220.0050.02812.08
5.3.210.0050.01812.04
5.3.200.0050.02912.09
5.3.190.0100.02612.04
5.3.180.0040.02812.05
5.3.170.0110.02512.09
5.3.160.0070.02612.07
5.3.150.0060.02812.09
5.3.140.0060.01512.08
5.3.130.0030.02412.08
5.3.120.0060.02612.08
5.3.110.0060.01812.08
5.3.100.0050.03011.89
5.3.90.0040.03011.90
5.3.80.0050.02111.90
5.3.70.0060.02911.91
5.3.60.0050.02711.91
5.3.50.0030.01911.88
5.3.40.0060.01911.88
5.3.30.0060.02311.87
5.3.20.0060.02611.80
5.3.10.0050.02011.77
5.3.00.0040.02011.70
5.2.170.0020.02210.90
5.2.160.0060.02110.95
5.2.150.0050.02010.96
5.2.140.0060.01910.95
5.2.130.0040.02210.93
5.2.120.0060.02110.93
5.2.110.0020.02410.95
5.2.100.0060.01810.93
5.2.90.0090.02110.95
5.2.80.0050.02010.88
5.2.70.0050.02210.94
5.2.60.0050.02510.89
5.2.50.0040.02510.90
5.2.40.0050.01810.85
5.2.30.0080.01910.89
5.2.20.0050.02010.90
5.2.10.0080.01910.86
5.2.00.0060.01310.82
5.1.60.0040.01010.73
5.1.50.0030.01310.73
5.1.40.0020.01810.73
5.1.30.0050.01610.73
5.1.20.0050.02210.73
5.1.10.0060.01310.73
5.1.00.0020.01410.73
5.0.50.0030.01810.73
5.0.40.0030.01410.73
5.0.30.0030.01310.73
5.0.20.0040.00710.73
5.0.10.0020.01010.73
5.0.00.0010.01510.73
4.4.90.0040.01210.73
4.4.80.0010.01410.73
4.4.70.0010.01410.73
4.4.60.0000.01710.73
4.4.50.0020.01810.73
4.4.40.0020.01910.73
4.4.30.0020.01410.73
4.4.20.0040.01010.73
4.4.10.0020.01510.73
4.4.00.0040.01910.73
4.3.110.0030.00710.73
4.3.100.0030.00810.73
4.3.90.0030.01410.73
4.3.80.0030.01910.73
4.3.70.0020.01310.73
4.3.60.0010.01610.73
4.3.50.0050.01010.73
4.3.40.0020.01110.73
4.3.30.0020.01610.73
4.3.20.0020.01410.73
4.3.10.0010.01210.73
4.3.00.0010.00810.73

preferences:
48.83 ms | 401 KiB | 5 Q