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['string'][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)
8.3.40.0070.01018.85
8.3.30.0060.00918.72
8.3.20.0040.00418.62
8.3.10.0120.00621.09
8.3.00.0040.00421.58
8.2.170.0140.00722.96
8.2.160.0120.00320.38
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0000.00721.05
8.2.110.0060.00319.33
8.2.100.0040.00817.91
8.2.90.0080.00019.89
8.2.80.0030.00717.97
8.2.70.0030.00518.04
8.2.60.0000.00817.80
8.2.50.0000.00818.10
8.2.40.0000.00720.43
8.2.30.0040.00419.23
8.2.20.0000.00717.75
8.2.10.0020.00517.77
8.2.00.0000.00817.74
8.1.270.0040.00423.99
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0090.00023.93
8.1.230.0110.00020.94
8.1.220.0060.00317.74
8.1.210.0030.00518.77
8.1.200.0040.00417.36
8.1.190.0080.00017.23
8.1.180.0040.00418.10
8.1.170.0080.00018.48
8.1.160.0040.00418.82
8.1.150.0040.00420.10
8.1.140.0040.00417.38
8.1.130.0030.00317.85
8.1.120.0030.00417.34
8.1.110.0030.00617.38
8.1.100.0030.00617.25
8.1.90.0050.00317.37
8.1.80.0000.00817.29
8.1.70.0080.00017.31
8.1.60.0080.00017.50
8.1.50.0000.00817.45
8.1.40.0040.00417.56
8.1.30.0050.00317.63
8.1.20.0040.00417.56
8.1.10.0040.00417.58
8.1.00.0090.00017.41
8.0.300.0050.00219.98
8.0.290.0070.00016.63
8.0.280.0000.00718.27
8.0.270.0000.00717.25
8.0.260.0000.00616.87
8.0.250.0000.00916.86
8.0.240.0030.00616.96
8.0.230.0000.00716.87
8.0.220.0030.00516.77
8.0.210.0000.00716.86
8.0.200.0000.00616.96
8.0.190.0080.00016.88
8.0.180.0040.00416.88
8.0.170.0000.00716.86
8.0.160.0070.00016.98
8.0.150.0000.00716.86
8.0.140.0000.00716.86
8.0.130.0030.00313.32
8.0.120.0050.00216.81
8.0.110.0030.00516.77
8.0.100.0050.00316.75
8.0.90.0040.00416.79
8.0.80.0090.00916.85
8.0.70.0000.00716.88
8.0.60.0080.00016.85
8.0.50.0040.00416.75
8.0.30.0100.01317.07
8.0.20.0080.01017.40
8.0.10.0030.00316.87
8.0.00.0130.00716.67
7.4.330.0050.00016.71
7.4.320.0030.00316.53
7.4.300.0030.00316.36
7.4.290.0030.00316.45
7.4.280.0060.00316.37
7.4.270.0000.00616.48
7.4.260.0000.00513.12
7.4.250.0030.00516.49
7.4.240.0000.00716.50
7.4.230.0000.00716.24
7.4.220.0120.00916.32
7.4.210.0090.00816.43
7.4.200.0040.00416.50
7.4.190.0040.00416.47
7.4.160.0060.01016.34
7.4.150.0030.01417.40
7.4.140.0140.00417.86
7.4.130.0090.01116.46
7.4.120.0130.00316.54
7.4.110.0140.00416.62
7.4.100.0120.00616.71
7.4.90.0100.00716.52
7.4.80.0100.00719.39
7.4.70.0110.00716.55
7.4.60.0060.00916.54
7.4.50.0040.00416.02
7.4.40.0070.00722.77
7.4.30.0050.01116.46
7.4.10.0040.01516.30
7.4.00.0070.00815.62
7.3.330.0060.00013.19
7.3.320.0120.00013.04
7.3.310.0000.00716.30
7.3.300.0000.00616.29
7.3.290.0070.00716.34
7.3.280.0060.00916.36
7.3.270.0070.01017.40
7.3.260.0080.01218.24
7.3.250.0060.01116.42
7.3.240.0130.00316.44
7.3.230.0060.01016.46
7.3.210.0140.00416.49
7.3.200.0080.01119.39
7.3.190.0140.00716.49
7.3.180.0120.00616.31
7.3.170.0100.00716.54
7.3.160.0080.00816.07
7.3.130.0060.01316.41
7.3.120.0040.01315.40
7.3.110.0120.00515.81
7.3.100.0070.00915.69
7.3.90.0060.00715.77
7.3.80.0070.01015.73
7.3.70.0070.01015.84
7.3.60.0050.01215.76
7.3.50.0060.01015.72
7.3.40.0060.00915.73
7.3.30.0020.00815.65
7.3.20.0060.00917.50
7.3.10.0140.00516.93
7.3.00.0090.00716.96
7.2.330.0090.01316.62
7.2.320.0060.01516.23
7.2.310.0070.01416.62
7.2.300.0100.00716.21
7.2.290.0100.00616.52
7.2.260.0030.01016.38
7.2.250.0030.01415.90
7.2.240.0060.01215.93
7.2.230.0060.00915.86
7.2.220.0060.00915.79
7.2.210.0050.01015.75
7.2.200.0100.00715.85
7.2.190.0050.00915.78
7.2.180.0050.01215.80
7.2.170.0070.00715.88
7.2.160.0030.01016.30
7.2.150.0090.00318.24
7.2.140.0080.00418.19
7.2.130.0160.00917.54
7.2.120.0150.00717.40
7.2.110.0120.00917.48
7.2.100.0100.00717.29
7.2.90.0090.00617.40
7.2.80.0120.00416.98
7.2.70.0120.01017.20
7.2.60.0100.00917.07
7.2.50.0120.01117.27
7.2.40.0160.00617.24
7.2.30.0120.01117.32
7.2.20.0080.00817.29
7.2.10.0070.01417.23
7.2.00.0090.00818.04
7.1.330.0030.01116.63
7.1.320.0060.00816.57
7.1.310.0050.00916.60
7.1.300.0060.00916.54
7.1.290.0020.01316.62
7.1.280.0070.00716.64
7.1.270.0020.01216.57
7.1.260.0050.01016.47
7.1.250.0130.00616.30
7.1.240.0000.01717.27
7.1.230.0030.00917.27
7.1.220.0000.00917.31
7.1.210.0040.00717.37
7.1.200.0000.01116.40
7.1.190.0060.00617.29
7.1.180.0080.00817.32
7.1.170.0030.00617.25
7.1.160.0070.00717.15
7.1.150.0090.00617.19
7.1.140.0070.00317.07
7.1.130.0030.01317.41
7.1.120.0040.01117.37
7.1.110.0070.00717.30
7.1.100.0060.00617.71
7.1.90.0030.01017.33
7.1.80.0040.00817.29
7.1.70.0030.01017.35
7.1.60.0110.00718.36
7.1.50.0020.01717.13
7.1.40.0120.00317.51
7.1.30.0030.00917.15
7.1.20.0070.00717.17
7.1.10.0110.00316.97
7.1.00.0050.03519.83
7.0.330.0030.01016.98
7.0.320.0000.01317.11
7.0.310.0090.00016.89
7.0.300.0080.00316.98
7.0.290.0030.01016.78
7.0.280.0040.00816.82
7.0.270.0080.00616.75
7.0.260.0060.00316.83
7.0.250.0030.00716.86
7.0.240.0060.00617.09
7.0.230.0000.01217.04
7.0.220.0030.00717.07
7.0.210.0030.00716.84
7.0.200.0090.00716.60
7.0.190.0090.00616.97
7.0.180.0000.01117.02
7.0.170.0070.00417.02
7.0.160.0000.01416.93
7.0.150.0070.00316.94
7.0.140.0070.04019.52
7.0.130.0130.00016.90
7.0.120.0030.01216.81
7.0.110.0070.01117.04
7.0.100.0060.00916.83
7.0.90.0110.00416.93
7.0.80.0030.01016.93
7.0.70.0140.03719.32
7.0.60.0050.02719.30
7.0.50.0070.03519.49
7.0.40.0030.04317.48
7.0.30.0060.04217.37
7.0.20.0070.02717.54
7.0.10.0040.02617.52
7.0.00.0020.02717.46
5.6.400.0070.01015.77
5.6.390.0060.01015.80
5.6.380.0000.01115.93
5.6.370.0080.00415.84
5.6.360.0100.00315.80
5.6.350.0030.01315.92
5.6.340.0070.00715.88
5.6.330.0060.00815.80
5.6.320.0100.00715.78
5.6.310.0000.01515.93
5.6.300.0030.01215.66
5.6.290.0030.01015.80
5.6.280.0040.04018.45
5.6.270.0120.00415.83
5.6.260.0110.00415.92
5.6.250.0000.01215.77
5.6.240.0030.01315.88
5.6.230.0100.00616.02
5.6.220.0100.03818.21
5.6.210.0070.03418.25
5.6.200.0050.02718.43
5.6.190.0020.04818.42
5.6.180.0020.04618.31
5.6.170.0050.04518.26
5.6.160.0100.02018.47
5.6.150.0020.02818.27
5.6.140.0080.02218.36
5.6.130.0040.02918.34
5.6.120.0050.02418.47
5.6.110.0050.03118.32
5.6.100.0090.02018.40
5.6.90.0050.03718.36
5.6.80.0070.04218.07
5.6.70.0030.03418.08
5.6.60.0030.03018.02
5.6.50.0030.02817.93
5.6.40.0020.02718.11
5.6.30.0100.02017.99
5.6.20.0020.04517.97
5.6.10.0050.04217.99
5.6.00.0100.03518.04
5.5.380.0070.00715.63
5.5.370.0030.01415.60
5.5.360.0050.04418.12
5.5.350.0080.02718.08
5.5.340.0020.02718.23
5.5.330.0000.04818.34
5.5.320.0020.03018.13
5.5.310.0030.03318.35
5.5.300.0030.03118.15
5.5.290.0100.04118.11
5.5.280.0020.02518.36
5.5.270.0030.02618.08
5.5.260.0090.02218.25
5.5.250.0000.04218.03
5.5.240.0090.03517.90
5.5.230.0040.04817.85
5.5.220.0030.02317.79
5.5.210.0080.03017.82
5.5.200.0080.03417.89
5.5.190.0040.04117.99
5.5.180.0020.02917.85
5.5.170.0070.00315.61
5.5.160.0070.02017.90
5.5.150.0070.02217.94
5.5.140.0030.03317.89
5.5.130.0080.02217.92
5.5.120.0040.02217.86
5.5.110.0030.02918.00
5.5.100.0060.03617.79
5.5.90.0060.02117.89
5.5.80.0080.01517.83
5.5.70.0010.02417.76
5.5.60.0030.02317.87
5.5.50.0070.02017.73
5.5.40.0070.02817.84
5.5.30.0050.02317.78
5.5.20.0070.01717.88
5.5.10.0020.02217.83
5.5.00.0060.03817.78
5.4.450.0050.02216.04
5.4.440.0030.02215.94
5.4.430.0010.02516.04
5.4.420.0020.02516.03
5.4.410.0080.04115.90
5.4.400.0010.02415.72
5.4.390.0110.03015.71
5.4.380.0100.01815.85
5.4.370.0050.02715.88
5.4.360.0020.02415.77
5.4.350.0070.03315.84
5.4.340.0070.02315.80
5.4.330.0050.00512.65
5.4.320.0020.03415.87
5.4.310.0040.02115.87
5.4.300.0030.03515.88
5.4.290.0040.02215.79
5.4.280.0020.02515.84
5.4.270.0040.01915.84
5.4.260.0020.04415.80
5.4.250.0030.02215.89
5.4.240.0020.02015.85
5.4.230.0030.02815.86
5.4.220.0040.02715.80
5.4.210.0050.02015.81
5.4.200.0040.01915.77
5.4.190.0030.04115.81
5.4.180.0020.02815.77
5.4.170.0020.02115.88
5.4.160.0040.01915.80
5.4.150.0040.03415.84
5.4.140.0050.02014.51
5.4.130.0020.02214.46
5.4.120.0060.01714.50
5.4.110.0010.02414.50
5.4.100.0060.02314.49
5.4.90.0070.01614.43
5.4.80.0040.02014.45
5.4.70.0050.01714.42
5.4.60.0030.03214.48
5.4.50.0040.02114.49
5.4.40.0060.03914.53
5.4.30.0050.03414.44
5.4.20.0050.03814.44
5.4.10.0050.04114.49
5.4.00.0090.03114.21
5.3.290.0040.03213.86
5.3.280.0020.02013.62
5.3.270.0030.02113.69
5.3.260.0040.02113.68
5.3.250.0040.01913.66
5.3.240.0080.01613.66
5.3.230.0040.02013.65
5.3.220.0050.02013.82
5.3.210.0060.01813.67
5.3.200.0080.01713.65
5.3.190.0020.02213.75
5.3.180.0010.02413.76
5.3.170.0060.01813.77
5.3.160.0060.03713.72
5.3.150.0020.02813.73
5.3.140.0040.01813.68
5.3.130.0060.04013.69
5.3.120.0020.04413.67
5.3.110.0030.04113.71
5.3.100.0020.04313.61
5.3.90.0030.03413.41
5.3.80.0050.04113.33
5.3.70.0030.04313.33
5.3.60.0050.03113.43
5.3.50.0030.03813.26
5.3.40.0040.03413.27
5.3.30.0050.02913.41
5.3.20.0020.03813.18
5.3.10.0030.03913.21
5.3.00.0030.04113.23
5.2.170.0000.06712.22
5.2.160.0030.04712.22
5.2.150.0030.04712.22
5.2.140.0000.05012.22
5.2.130.0030.06012.22
5.2.120.0030.06312.22
5.2.110.0030.05012.22
5.2.100.0000.06712.22
5.2.90.0030.05712.22
5.2.80.0030.06312.22
5.2.70.0000.06312.22
5.2.60.0000.03312.22
5.2.50.0070.06312.22
5.2.40.0030.05012.22
5.2.30.0100.05712.22
5.2.20.0030.06012.22
5.2.10.0000.03712.22
5.2.00.0030.06012.22
5.1.60.0000.05712.22
5.1.50.0130.04312.22
5.1.40.0070.05312.22
5.1.30.0030.05312.22
5.1.20.0070.05012.22
5.1.10.0000.02712.22
5.1.00.0000.03012.22
5.0.50.0030.04312.22
5.0.40.0030.02012.22
5.0.30.0030.06312.22
5.0.20.0030.04312.22
5.0.10.0000.04712.22
5.0.00.0070.05712.22
4.4.90.0030.02012.22
4.4.80.0000.02012.22
4.4.70.0030.02312.22
4.4.60.0000.02312.22
4.4.50.0030.03312.22
4.4.40.0030.03012.22
4.4.30.0030.02012.22
4.4.20.0030.03312.22
4.4.10.0000.01712.22
4.4.00.0000.05712.22
4.3.110.0000.02712.22
4.3.100.0030.02012.22
4.3.90.0070.02312.22
4.3.80.0000.04012.22
4.3.70.0000.03312.22
4.3.60.0000.03712.22
4.3.50.0000.02712.22
4.3.40.0070.03012.22
4.3.30.0000.04012.22
4.3.20.0070.02312.22
4.3.10.0030.02712.22
4.3.00.0000.01712.22

preferences:
49.8 ms | 400 KiB | 5 Q