3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = 'hello'; var_dump(isset($foo['a'])); var_dump(isset($foo['a']), $foo['a'], isset($foo['a'][0]), $foo['a'][0]);

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)
8.3.60.0100.01016.38
8.3.50.0170.00317.91
8.3.40.0130.01018.92
8.3.30.0090.00618.69
8.3.20.0040.00419.16
8.3.10.0000.01523.61
8.3.00.0050.00322.36
8.2.180.0140.00716.75
8.2.170.0140.00722.96
8.2.160.0060.00921.11
8.2.150.0080.00024.18
8.2.140.0050.00224.66
8.2.130.0080.00022.25
8.2.120.0000.00726.35
8.2.110.0030.00622.26
8.2.100.0100.00517.78
8.2.90.0000.00819.13
8.2.80.0000.00817.97
8.2.70.0060.00317.63
8.2.60.0090.00017.80
8.2.50.0080.00018.10
8.2.40.0050.00322.15
8.2.30.0030.00719.16
8.2.20.0050.00217.82
8.2.10.0050.00218.11
8.2.00.0000.00818.06
8.1.280.0070.01425.92
8.1.270.0000.00823.92
8.1.260.0070.00028.09
8.1.250.0050.00328.09
8.1.240.0090.00023.83
8.1.230.0110.00022.11
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0040.00417.36
8.1.180.0040.00418.10
8.1.170.0000.00718.51
8.1.160.0050.00322.19
8.1.150.0050.00218.70
8.1.140.0040.00419.52
8.1.130.0000.00917.52
8.1.120.0040.00417.32
8.1.110.0020.00517.39
8.1.100.0000.00717.38
8.1.90.0080.00017.29
8.1.80.0080.00017.44
8.1.70.0000.01017.40
8.1.60.0040.00417.50
8.1.50.0030.00617.39
8.1.40.0050.00317.54
8.1.30.0000.00817.51
8.1.20.0000.00717.48
8.1.10.0000.00817.59
8.1.00.0020.00517.51
8.0.300.0060.00318.77
8.0.290.0020.00516.75
8.0.280.0040.00418.39
8.0.270.0000.00717.11
8.0.260.0030.00316.95
8.0.250.0040.00417.00
8.0.240.0030.00316.93
8.0.230.0040.00416.98
8.0.220.0000.00716.92
8.0.210.0000.00716.85
8.0.200.0030.00316.91
8.0.190.0070.00016.94
8.0.180.0080.00016.94
8.0.170.0040.00416.80
8.0.160.0040.00416.91
8.0.150.0030.00516.80
8.0.140.0000.01016.94
8.0.130.0000.00613.28
8.0.120.0060.00316.86
8.0.110.0040.00416.94
8.0.100.0080.00016.81
8.0.90.0070.00016.77
8.0.80.0090.00616.94
8.0.70.0070.00016.71
8.0.60.0050.00217.00
8.0.50.0040.00416.92
8.0.30.0070.00816.98
8.0.20.0080.01017.40
8.0.10.0000.00817.02
8.0.00.0100.00716.71
7.4.330.0050.00015.08
7.4.320.0030.00316.37
7.4.300.0000.00616.58
7.4.290.0070.00016.54
7.4.280.0050.00316.34
7.4.270.0030.00316.55
7.4.260.0000.00716.55
7.4.250.0000.00816.37
7.4.240.0000.00716.37
7.4.230.0000.00716.56
7.4.220.0070.01116.53
7.4.210.0060.00916.53
7.4.200.0040.00416.47
7.4.160.0060.01016.49
7.4.150.0060.01617.40
7.4.140.0150.00617.86
7.4.130.0080.01116.51
7.4.120.0090.00916.44
7.4.110.0100.00716.50
7.4.100.0030.01416.34
7.4.90.0060.01216.32
7.4.80.0100.00719.39
7.4.70.0100.00716.58
7.4.60.0120.00616.46
7.4.50.0050.00716.34
7.4.40.0160.00016.09
7.4.30.0130.00416.51
7.4.00.0070.01014.93
7.3.330.0030.00313.23
7.3.320.0060.00013.07
7.3.310.0040.00416.26
7.3.300.0000.00716.35
7.3.290.0080.00816.40
7.3.280.0080.00916.39
7.3.270.0080.00817.40
7.3.260.0130.00816.45
7.3.250.0100.00616.29
7.3.240.0080.01016.34
7.3.230.0030.01316.39
7.3.210.0090.00616.23
7.3.200.0030.01316.38
7.3.190.0090.01216.36
7.3.180.0150.00616.49
7.3.170.0130.00316.24
7.3.160.0120.00516.57
7.3.120.0040.01414.78
7.3.110.0030.00714.88
7.3.100.0040.01114.90
7.3.90.0100.00614.78
7.3.80.0000.01314.68
7.3.70.0100.00614.66
7.3.60.0060.00914.59
7.3.50.0030.00614.61
7.3.40.0080.00414.42
7.3.30.0000.00914.65
7.3.20.0030.01016.79
7.3.10.0150.01016.36
7.3.00.0100.00616.22
7.2.330.0110.00716.70
7.2.320.0090.00916.57
7.2.310.0100.00716.56
7.2.300.0160.00016.30
7.2.290.0090.00816.67
7.2.250.0070.01114.69
7.2.240.0070.01015.13
7.2.230.0140.00314.58
7.2.220.0030.00914.64
7.2.210.0000.01414.75
7.2.200.0080.00414.83
7.2.190.0000.01514.93
7.2.180.0070.00714.71
7.2.170.0070.00714.89
7.2.130.0100.00716.65
7.2.120.0130.00616.68
7.2.110.0100.00316.67
7.2.100.0090.00616.43
7.2.90.0080.00416.71
7.2.80.0080.00817.02
7.2.70.0060.00616.86
7.2.60.0080.01016.71
7.2.50.0090.00816.56
7.2.40.0090.00916.80
7.2.30.0060.00616.51
7.2.20.0060.00916.31
7.2.10.0070.00716.54
7.2.00.0050.00817.87
7.1.330.0100.00315.64
7.1.320.0070.00715.85
7.1.310.0070.00715.89
7.1.300.0120.00615.59
7.1.290.0040.00715.57
7.1.280.0030.01015.52
7.1.270.0000.01315.80
7.1.260.0110.00415.72
7.1.250.0060.00615.11
7.1.200.0060.00815.46
7.1.100.0070.00717.97
7.1.70.0000.00817.13
7.1.60.0030.00916.94
7.1.50.0040.02116.68
7.1.00.0070.07322.35
7.0.200.0080.00414.98
7.0.100.0400.06320.16
7.0.90.0370.08719.92
7.0.80.0370.07719.90
7.0.70.0400.07719.90
7.0.60.0370.07319.91
7.0.50.0500.07020.37
7.0.40.0130.08320.10
7.0.30.0030.08019.96
7.0.20.0130.06720.18
7.0.10.0130.07320.10
7.0.00.0130.07320.01
5.6.250.0070.08720.68
5.6.240.0100.08020.55
5.6.230.0100.08020.49
5.6.220.0130.07320.63
5.6.210.0130.07320.57
5.6.200.0070.08020.95
5.6.190.0100.08321.17
5.6.180.0070.08321.04
5.6.170.0100.08321.17
5.6.160.0170.07021.02
5.6.150.0130.07321.00
5.6.140.0130.04321.03
5.6.130.0070.08021.04
5.6.120.0130.07720.98
5.6.110.0130.08021.00
5.6.100.0030.08320.92
5.6.90.0070.08321.07
5.6.80.0030.07020.40
5.6.70.0170.07020.48
5.6.60.0130.07020.37
5.6.50.0030.06320.55
5.6.40.0030.05720.43
5.6.30.0030.08020.43
5.6.20.0100.08020.38
5.6.10.0070.04720.37
5.6.00.0030.08020.35
5.5.380.0100.07720.50
5.5.370.0100.08020.33
5.5.360.0100.07720.36
5.5.350.0100.07320.43
5.5.340.0030.08720.83
5.5.330.0030.06720.87
5.5.320.0170.06720.75
5.5.310.0070.06720.87
5.5.300.0030.08320.77
5.5.290.0100.08020.73
5.5.280.0130.07320.85
5.5.270.0070.08320.87
5.5.260.0130.08320.92
5.5.250.0130.05020.69
5.5.240.0030.05720.30
5.5.230.0030.05020.20
5.5.220.0130.06720.24
5.5.210.0100.07020.17
5.5.200.0030.07720.24
5.5.190.0030.05320.15
5.5.180.0030.05020.12
5.5.160.0030.05020.15
5.5.150.0130.07020.11
5.5.140.0070.07720.21
5.5.130.0130.07320.21
5.5.120.0170.07020.23
5.5.110.0070.08320.26
5.5.100.0070.07320.10
5.5.90.0030.05320.00
5.5.80.0070.08020.12
5.5.70.0170.07320.05
5.5.60.0000.05320.09
5.5.50.0070.07320.09
5.5.40.0070.06720.05
5.5.30.0070.08020.05
5.5.20.0100.07720.13
5.5.10.0070.07720.05
5.5.00.0070.05020.05
5.4.450.0100.08319.57
5.4.440.0070.08019.28
5.4.430.0070.07319.45
5.4.420.0130.04019.29
5.4.410.0100.07719.32
5.4.400.0170.06019.23
5.4.390.0030.08019.08
5.4.380.0130.07018.95
5.4.370.0000.08019.07
5.4.360.0070.07318.79
5.4.350.0030.07719.12
5.4.340.0030.05019.05
5.4.320.0030.08019.10
5.4.310.0070.07318.82
5.4.300.0070.08018.96
5.4.290.0100.07719.11
5.4.280.0100.05318.79
5.4.270.0100.07718.89
5.4.260.0070.07719.03
5.4.250.0170.06718.94
5.4.240.0030.08019.06
5.4.230.0070.07719.06
5.4.220.0000.08019.23
5.4.210.0100.08019.13
5.4.200.0130.06319.05
5.4.190.0070.04719.13
5.4.180.0070.06318.78
5.4.170.0130.07019.09
5.4.160.0070.07019.13
5.4.150.0030.08018.77
5.4.140.0070.07716.29
5.4.130.0170.06316.27
5.4.120.0100.07016.29
5.4.110.0100.04016.45
5.4.100.0070.07316.28
5.4.90.0070.07316.41
5.4.80.0030.07716.29
5.4.70.0170.06016.43
5.4.60.0070.07716.36
5.4.50.0030.07716.19
5.4.40.0100.06316.29
5.4.30.0130.07016.20
5.4.20.0100.07016.30
5.4.10.0100.06016.23
5.4.00.0130.06715.81
5.3.290.0070.04314.57
5.3.280.0070.07714.54
5.3.270.0030.08314.46
5.3.260.0070.04714.51
5.3.250.0130.03714.58
5.3.240.0030.07314.60
5.3.230.0070.06314.55
5.3.220.0000.08314.42
5.3.210.0070.08014.42
5.3.200.0070.07714.56
5.3.190.0200.06014.50
5.3.180.0030.04714.42
5.3.170.0070.07314.50
5.3.160.0130.06714.50
5.3.150.0030.04714.55
5.3.140.0070.06714.46
5.3.130.0070.07714.50
5.3.120.0070.06714.40
5.3.110.0130.06314.40
5.3.100.0100.07313.86
5.3.90.0070.07013.99
5.3.80.0030.08013.97
5.3.70.0070.07313.96
5.3.60.0000.04713.86
5.3.50.0100.06713.91
5.3.40.0070.06313.91
5.3.30.0100.05713.76
5.3.20.0030.07713.65
5.3.10.0130.07013.62
5.3.00.0070.06313.41
5.2.170.0000.06311.00
5.2.160.0130.05311.14
5.2.150.0030.05311.09
5.2.140.0000.03711.00
5.2.130.0100.05011.09
5.2.120.0030.05011.09
5.2.110.0070.05010.92
5.2.100.0070.06010.91
5.2.90.0000.06310.95
5.2.80.0000.05711.08
5.2.70.0030.06310.94
5.2.60.0000.03711.12
5.2.50.0000.04311.09
5.2.40.0000.03011.04
5.2.30.0030.04010.82
5.2.20.0070.05010.84
5.2.10.0070.02710.88
5.2.00.0000.03010.62
5.1.60.0000.02710.04
5.1.50.0000.0309.83
5.1.40.0030.02310.02
5.1.30.0000.02710.39
5.1.20.0030.02710.41
5.1.10.0000.02710.02
5.1.00.0000.03010.07
5.0.50.0000.0208.57
5.0.40.0000.0238.45
5.0.30.0030.0308.33
5.0.20.0000.0208.33
5.0.10.0030.0178.33
5.0.00.0000.0438.33
4.4.90.0000.0208.33
4.4.80.0000.0378.33
4.4.70.0000.0208.33
4.4.60.0000.0178.33
4.4.50.0000.0178.33
4.4.40.0000.0238.33
4.4.30.0000.0208.33
4.4.20.0030.0138.33
4.4.10.0000.0178.33
4.4.00.0000.0238.33
4.3.110.0030.0238.33
4.3.100.0030.0138.33
4.3.90.0000.0138.33
4.3.80.0000.0278.33
4.3.70.0000.0208.33
4.3.60.0000.0278.33
4.3.50.0000.0238.33
4.3.40.0000.0238.33
4.3.30.0000.0238.33
4.3.20.0000.0238.33
4.3.10.0000.0138.33
4.3.00.0000.0138.33

preferences:
62.39 ms | 401 KiB | 5 Q