3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = 'here\'s some data'; var_dump(isset($data['string'])); var_dump(isset($data['string'][0])); echo $data['0'][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)
8.3.60.0170.00318.30
8.3.50.0120.01021.90
8.3.40.0070.00718.83
8.3.30.0070.00718.58
8.3.20.0080.00018.68
8.3.10.0080.00019.34
8.3.00.0040.00421.68
8.2.180.0090.00916.50
8.2.170.0170.00722.96
8.2.160.0130.00620.35
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00021.11
8.2.110.0030.00621.12
8.2.100.0110.00017.75
8.2.90.0000.00718.28
8.2.80.0090.00017.97
8.2.70.0060.00318.03
8.2.60.0090.00017.93
8.2.50.0000.00818.10
8.2.40.0000.00922.20
8.2.30.0040.00421.29
8.2.20.0000.00717.59
8.2.10.0040.00417.62
8.2.00.0050.00217.55
8.1.280.0040.01225.92
8.1.270.0030.00523.99
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0070.00323.76
8.1.230.0070.00421.04
8.1.220.0050.00317.79
8.1.210.0090.00318.77
8.1.200.0040.00417.35
8.1.190.0060.00317.23
8.1.180.0000.00818.10
8.1.170.0060.00318.55
8.1.160.0040.00418.82
8.1.150.0040.00418.53
8.1.140.0030.00617.38
8.1.130.0000.00717.86
8.1.120.0030.00517.28
8.1.110.0050.00217.38
8.1.100.0000.00717.44
8.1.90.0070.00017.27
8.1.80.0040.00417.37
8.1.70.0000.00817.37
8.1.60.0040.00417.46
8.1.50.0000.00717.45
8.1.40.0030.00617.46
8.1.30.0040.00417.46
8.1.20.0000.00817.54
8.1.10.0000.00717.45
8.1.00.0030.00917.51
8.0.300.0040.00419.96
8.0.290.0040.00716.63
8.0.280.0070.00018.35
8.0.270.0030.00317.29
8.0.260.0000.00816.77
8.0.250.0000.00816.86
8.0.240.0000.00816.88
8.0.230.0000.00716.75
8.0.220.0000.00716.68
8.0.210.0040.00416.86
8.0.200.0030.00316.85
8.0.190.0080.00016.87
8.0.180.0050.00216.89
8.0.170.0070.00016.84
8.0.160.0040.00416.86
8.0.150.0000.00816.74
8.0.140.0070.00016.82
8.0.130.0000.00513.25
8.0.120.0040.00416.87
8.0.110.0050.00316.70
8.0.100.0000.00716.84
8.0.90.0040.00416.80
8.0.80.0040.01116.81
8.0.70.0020.00516.64
8.0.60.0000.00816.75
8.0.50.0000.00816.76
8.0.30.0160.00717.01
8.0.20.0070.01117.40
8.0.10.0020.00516.84
8.0.00.0100.01016.75
7.4.330.0000.00516.67
7.4.320.0000.00616.48
7.4.300.0000.00616.38
7.4.290.0000.00816.48
7.4.280.0050.00516.53
7.4.270.0030.00316.42
7.4.260.0000.00613.14
7.4.250.0000.00716.29
7.4.240.0040.00416.52
7.4.230.0000.00616.51
7.4.220.0060.01216.41
7.4.210.0100.00516.49
7.4.200.0030.00316.32
7.4.190.0000.00716.35
7.4.160.0140.00416.48
7.4.150.0000.01817.40
7.4.140.0080.01217.86
7.4.130.0090.00716.44
7.4.120.0110.00816.54
7.4.110.0040.01416.30
7.4.100.0100.00716.54
7.4.90.0070.01016.51
7.4.80.0060.01619.39
7.4.70.0090.00616.43
7.4.60.0070.01316.50
7.4.50.0050.00316.43
7.4.40.0100.00722.77
7.4.30.0090.01216.39
7.4.00.0050.01114.94
7.3.330.0000.00513.09
7.3.320.0030.00313.12
7.3.310.0000.00716.07
7.3.300.0030.00316.26
7.3.290.0110.00316.25
7.3.280.0040.01316.34
7.3.270.0070.01017.40
7.3.260.0120.00918.24
7.3.250.0100.00716.36
7.3.240.0100.00616.22
7.3.230.0040.01916.39
7.3.210.0070.01016.36
7.3.200.0130.00619.39
7.3.190.0160.00416.29
7.3.180.0080.01016.39
7.3.170.0070.00716.32
7.3.160.0040.01216.53
7.3.120.0070.01014.99
7.3.110.0140.00314.93
7.3.100.0110.00415.06
7.3.90.0030.00614.61
7.3.80.0070.00714.86
7.3.70.0030.00614.80
7.3.60.0060.00914.93
7.3.50.0030.01214.70
7.3.40.0030.01514.85
7.3.30.0040.00814.82
7.3.20.0040.00816.64
7.3.10.0000.01516.69
7.3.00.0030.01016.29
7.2.330.0070.01016.57
7.2.320.0180.00416.57
7.2.310.0190.00316.38
7.2.300.0030.01916.67
7.2.290.0120.00916.44
7.2.250.0000.01815.17
7.2.240.0000.01414.79
7.2.230.0070.00715.12
7.2.220.0030.00614.82
7.2.210.0040.01114.85
7.2.200.0000.01415.16
7.2.190.0040.01115.00
7.2.180.0030.01414.79
7.2.170.0130.00715.18
7.2.60.0080.00616.95
7.2.00.0000.01219.37
7.1.330.0060.00615.82
7.1.320.0060.01015.82
7.1.310.0000.01115.80
7.1.300.0030.00915.52
7.1.290.0070.01015.70
7.1.280.0030.01415.96
7.1.270.0000.01315.98
7.1.260.0060.01015.61
7.1.200.0030.01015.77
7.1.100.0060.00318.08
7.1.70.0000.01017.11
7.1.60.0110.01419.40
7.1.50.0230.01334.65
7.1.00.0030.07022.35
7.0.200.0140.00715.00
7.0.140.0030.06721.93
7.0.60.0200.06719.93
7.0.50.0030.05017.83
7.0.40.0070.07320.21
7.0.30.0230.04720.02
7.0.20.0330.04020.30
7.0.10.0030.05020.18
7.0.00.0070.06720.33
5.6.280.0030.07320.81
5.6.210.0130.07720.66
5.6.200.0070.08318.21
5.6.190.0070.07720.45
5.6.180.0230.07720.27
5.6.170.0300.05320.49
5.6.160.0170.05720.32
5.6.150.0000.04018.18
5.6.140.0030.07018.21
5.6.130.0030.04018.08
5.6.120.0130.08021.00
5.6.110.0070.04020.95
5.6.100.0100.06021.13
5.6.90.0070.07721.00
5.6.80.0030.04020.39
5.5.350.3830.03320.40
5.5.340.0100.07017.88
5.5.330.0070.08020.40
5.5.320.0630.07020.13
5.5.310.0470.07020.34
5.5.300.0130.07318.02
5.5.290.0030.08017.95
5.5.280.0070.08720.67
5.5.270.0030.08320.75
5.5.260.0100.09020.91
5.5.250.0100.07720.70
5.5.240.0300.07020.28
5.4.450.0300.07319.26
5.4.440.0200.06719.21
5.4.430.0230.05019.54
5.4.420.0270.07019.40
5.4.410.0200.05019.32
5.4.400.0230.03318.79
5.4.390.0230.07319.06
5.4.380.0270.04319.25
5.4.370.0270.05719.21
5.4.360.0130.04318.79
5.4.350.0270.07019.16
5.4.340.0230.05019.08
5.4.320.0330.06319.21
5.4.310.0270.06018.91
5.4.300.0300.04018.93
5.4.290.0270.06319.20
5.4.280.0300.06719.09
5.4.270.0200.03719.11
5.4.260.0170.04019.09
5.4.250.0300.06019.05
5.4.240.0370.05718.77
5.4.230.0300.06018.92
5.4.220.0270.04319.23
5.4.210.0270.06018.88
5.4.200.0300.06719.23
5.4.190.0200.07718.91
5.4.180.0270.04318.79
5.4.170.0170.05018.91
5.4.160.0270.07019.04
5.4.150.0200.04718.89
5.4.140.0170.04016.45
5.4.130.0200.04716.45
5.4.120.0230.03016.54
5.4.110.0170.04716.46
5.4.100.0230.03016.43
5.4.90.0300.05016.35
5.4.80.0200.03716.16
5.4.70.0230.03016.32
5.4.60.0200.04316.39
5.4.50.0230.04316.41
5.4.40.0230.06316.36
5.4.30.0170.07716.39
5.4.20.0170.07016.32
5.4.10.0200.05716.20
5.4.00.0200.03715.99
5.3.290.0170.04014.71
5.3.280.0170.03714.54
5.3.270.0200.05314.45
5.3.260.0100.04714.62
5.3.250.0130.03714.55
5.3.240.0170.06014.55
5.3.230.0130.07014.44
5.3.220.0270.03714.50
5.3.210.0230.07314.65
5.3.200.0200.03714.53
5.3.190.0200.06014.50
5.3.180.0100.05314.39
5.3.170.0270.06014.57
5.3.160.0230.04314.60
5.3.150.0200.04314.49
5.3.140.0300.03014.59
5.3.130.0300.05014.38
5.3.120.0200.03714.48
5.3.110.0200.05714.38
5.3.100.0270.04014.05
5.3.90.0200.03713.92
5.3.80.0270.06313.96
5.3.70.0200.07013.95
5.3.60.0200.05713.86
5.3.50.0270.06313.82
5.3.40.0230.06013.72
5.3.30.0230.04713.84
5.3.20.0270.06313.62
5.3.10.0200.05713.60
5.3.00.0130.03713.59
5.2.170.0230.05712.88
5.2.160.0170.04312.88
5.2.150.0170.05312.88
5.2.140.0170.03312.88
5.2.130.0170.02712.88
5.2.120.0130.05712.88
5.2.110.0130.03712.88
5.2.100.0130.04312.88
5.2.90.0170.03012.88
5.2.80.0130.03012.88
5.2.70.0200.02312.88
5.2.60.0230.04712.88
5.2.50.0300.05012.88
5.2.40.0200.03712.88
5.2.30.0170.03012.88
5.2.20.0230.02712.88
5.2.10.0200.05712.88
5.2.00.0170.04012.88
5.1.60.0130.05312.88
5.1.50.0170.05012.88
5.1.40.0170.03012.88
5.1.30.0200.05312.88
5.1.20.0130.04312.88
5.1.10.0200.03012.88
5.1.00.0170.03312.88
5.0.50.0130.03712.88
5.0.40.0100.03312.88
5.0.30.0100.06712.88
5.0.20.0130.03712.88
5.0.10.0130.04012.88
5.0.00.0130.06012.88
4.4.90.0130.03012.88
4.4.80.0070.02312.88
4.4.70.0030.03012.88
4.4.60.0100.02012.88
4.4.50.0100.02012.88
4.4.40.0100.05012.88
4.4.30.0070.03312.88
4.4.20.0070.03312.88
4.4.10.0130.02012.88
4.4.00.0070.05712.88
4.3.110.0070.02012.88
4.3.100.0170.02312.88
4.3.90.0100.03012.88
4.3.80.0100.03312.88
4.3.70.0130.02012.88
4.3.60.0100.02012.88
4.3.50.0130.02012.88
4.3.40.0070.05312.88
4.3.30.0030.03012.88
4.3.20.0070.02312.88
4.3.10.0100.02012.88
4.3.00.0000.03712.88

preferences:
43.67 ms | 401 KiB | 5 Q