3v4l.org

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

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)
8.3.60.0100.00718.30
8.3.50.0180.00321.04
8.3.40.0100.00718.52
8.3.30.0000.01418.84
8.3.20.0040.00420.29
8.3.10.0050.00221.77
8.3.00.0000.00819.16
8.2.180.0070.01116.75
8.2.170.0070.01322.96
8.2.160.0070.00720.52
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0050.00321.18
8.2.110.0000.01022.23
8.2.100.0090.00317.72
8.2.90.0050.00319.05
8.2.80.0000.00819.41
8.2.70.0060.00317.61
8.2.60.0050.00317.93
8.2.50.0050.00318.07
8.2.40.0030.00618.15
8.2.30.0050.00219.43
8.2.20.0080.00017.60
8.2.10.0040.00418.02
8.2.00.0000.00717.97
8.1.280.0150.00425.92
8.1.270.0000.00824.66
8.1.260.0030.00626.35
8.1.250.0070.00028.09
8.1.240.0090.00023.86
8.1.230.0060.00618.97
8.1.220.0030.00517.74
8.1.210.0000.00918.77
8.1.200.0040.00417.00
8.1.190.0040.00417.53
8.1.180.0000.00818.10
8.1.170.0040.00418.59
8.1.160.0050.00218.86
8.1.150.0040.00418.61
8.1.140.0070.00017.33
8.1.130.0070.00017.78
8.1.120.0060.00317.38
8.1.110.0080.00017.28
8.1.100.0040.00417.43
8.1.90.0030.00517.28
8.1.80.0030.00417.29
8.1.70.0000.00817.38
8.1.60.0080.00017.43
8.1.50.0060.00617.44
8.1.40.0000.00817.44
8.1.30.0070.00017.54
8.1.20.0050.00217.58
8.1.10.0000.01017.58
8.1.00.0000.00817.46
8.0.300.0070.00018.77
8.0.290.0040.00417.03
8.0.280.0000.00718.27
8.0.270.0030.00317.10
8.0.260.0000.00617.17
8.0.250.0030.00316.77
8.0.240.0000.00716.82
8.0.230.0040.00416.80
8.0.220.0030.00316.70
8.0.210.0030.00316.68
8.0.200.0090.00016.88
8.0.190.0000.00816.86
8.0.180.0050.00316.68
8.0.170.0040.00716.86
8.0.160.0030.00616.73
8.0.150.0030.00516.79
8.0.140.0120.00316.80
8.0.130.0000.00613.18
8.0.120.0060.00316.81
8.0.110.0000.00716.74
8.0.100.0070.00016.78
8.0.90.0000.00716.78
8.0.80.0100.01016.88
8.0.70.0050.00316.82
8.0.60.0070.00016.67
8.0.50.0070.00016.70
8.0.30.0110.00816.96
8.0.20.0080.01117.40
8.0.10.0000.00816.96
8.0.00.0130.00616.78
7.4.330.0020.00215.03
7.4.320.0060.00016.43
7.4.300.0030.00316.52
7.4.290.0060.00316.53
7.4.280.0040.00816.51
7.4.270.0030.00316.46
7.4.260.0030.00316.41
7.4.250.0040.00416.41
7.4.240.0030.00316.47
7.4.230.0000.00716.52
7.4.220.0070.01116.36
7.4.210.0070.01116.55
7.4.200.0000.00716.32
7.4.160.0070.00716.46
7.4.150.0030.01417.40
7.4.140.0110.01117.86
7.4.130.0100.00716.42
7.4.120.0140.00416.42
7.4.110.0120.00616.42
7.4.100.0130.00716.39
7.4.90.0180.00016.44
7.4.80.0100.00719.39
7.4.70.0070.01316.48
7.4.60.0070.01416.52
7.4.50.0000.00716.48
7.4.40.0120.00316.57
7.4.30.0130.01016.48
7.4.00.0140.00315.06
7.3.330.0040.00413.13
7.3.320.0060.00013.03
7.3.310.0030.00316.32
7.3.300.0070.00016.16
7.3.290.0070.00916.25
7.3.280.0060.01116.27
7.3.270.0170.00017.40
7.3.260.0080.00816.34
7.3.250.0100.01216.31
7.3.240.0100.00716.59
7.3.230.0110.00616.39
7.3.210.0060.01016.24
7.3.200.0110.00919.39
7.3.190.0080.00816.26
7.3.180.0070.01416.33
7.3.170.0130.00816.27
7.3.160.0100.00716.50
7.2.330.0100.00716.65
7.2.320.0030.01616.66
7.2.310.0050.01616.70
7.2.300.0130.00316.53
7.2.290.0120.00916.50
7.2.00.0060.00919.36
7.1.100.0040.00417.95
7.1.70.0040.00417.01
7.1.60.0130.01019.48
7.1.50.0070.00316.84
7.1.00.0070.07322.51
7.0.200.0130.00316.35
7.0.60.0230.06020.01
7.0.50.0070.07717.81
7.0.40.0070.05320.02
7.0.30.0230.08020.13
7.0.20.0270.05320.30
7.0.10.0070.04720.09
7.0.00.0100.03720.08
5.6.280.0100.06720.77
5.6.210.0170.06320.60
5.6.200.0130.04318.16
5.6.190.0100.06020.45
5.6.180.0530.06020.77
5.6.170.0300.07720.33
5.6.160.0030.09020.37
5.6.150.0030.08318.15
5.6.140.0000.05318.20
5.6.130.0030.05018.22
5.6.120.0030.07021.04
5.6.110.0100.07721.13
5.6.100.0100.08021.10
5.6.90.0100.08320.99
5.6.80.0070.05320.28
5.5.350.0170.03720.38
5.5.340.0000.04317.98
5.5.330.0070.07720.21
5.5.320.0230.08020.34
5.5.310.0200.04320.25
5.5.300.0030.04018.01
5.5.290.0030.05317.96
5.5.280.0070.08320.96
5.5.270.0230.04020.86
5.5.260.0070.08720.86
5.5.250.0130.04320.46
5.5.240.0030.08020.14
5.4.450.0800.06019.39
5.4.440.0770.06719.17
5.4.430.1000.05719.52
5.4.420.0170.04719.52
5.4.410.0070.05719.35
5.4.400.0230.03718.98
5.4.390.0130.04719.16
5.4.380.0100.05318.91
5.4.370.0130.06019.05
5.4.360.0100.05319.07
5.4.350.0130.05019.13
5.4.340.0070.05318.90
5.4.320.0070.06718.94
5.4.310.0130.06018.95
5.4.300.0030.06019.15
5.4.290.0130.04718.92
5.4.280.0100.05019.10
5.4.270.0170.04318.98
5.4.260.0170.04319.24
5.4.250.0200.04319.10
5.4.240.0070.07319.06
5.4.230.0000.06019.11
5.4.220.0070.06319.05
5.4.210.0030.05719.01
5.4.200.0100.04716.56
5.4.190.0100.04718.89
5.4.180.0200.04018.89
5.4.170.0100.05319.00
5.4.160.0130.04719.22
5.4.150.0100.05318.87
5.4.140.0130.06316.34
5.4.130.0070.06716.38
5.4.120.0100.05016.18
5.4.110.0030.05316.41
5.4.100.0130.04716.34
5.4.90.0100.05016.39
5.4.80.0070.05316.31
5.4.70.0000.06016.31
5.4.60.0070.05016.17
5.4.50.0130.04716.30
5.4.40.0130.04316.39
5.4.30.0200.05016.30
5.4.20.0070.07016.45
5.4.10.0100.04716.48
5.4.00.0130.05015.97
5.3.290.0100.05314.57
5.3.280.0030.05714.51
5.3.270.0070.05714.54
5.3.260.0100.05714.49
5.3.250.0130.04714.54
5.3.240.0070.05314.49
5.3.230.0070.05714.59
5.3.220.0170.04314.58
5.3.210.0200.04314.48
5.3.200.0100.05014.49
5.3.190.0030.05714.42
5.3.180.0100.05014.48
5.3.170.0100.05714.43
5.3.160.0030.05314.39
5.3.150.0030.05714.59
5.3.140.0100.05014.55
5.3.130.0100.05014.43
5.3.120.0100.05014.38
5.3.110.0070.05714.34
5.3.100.0030.05714.07
5.3.90.0070.05313.93
5.3.80.0200.03713.95
5.3.70.0170.04313.85
5.3.60.0100.04713.93
5.3.50.0070.05013.83
5.3.40.0100.04713.78
5.3.30.0070.05013.74
5.3.20.0100.04713.53
5.3.10.0030.05313.58
5.3.00.0070.05013.47
5.2.170.0100.04311.09
5.2.160.0170.03011.13
5.2.150.0200.03011.04
5.2.140.0200.04711.23
5.2.130.0030.04311.02
5.2.120.0070.04011.20
5.2.110.0030.04311.18
5.2.100.0130.04010.85
5.2.90.0030.04311.04
5.2.80.0100.03710.98
5.2.70.0130.03311.09
5.2.60.0000.05710.90
5.2.50.0070.04010.90
5.2.40.0130.03310.99
5.2.30.0170.04010.82
5.2.20.0030.04311.05
5.2.10.0270.03010.77
5.2.00.0100.03710.65
5.1.60.0100.03010.05
5.1.50.0070.0339.80
5.1.40.0070.03310.05
5.1.30.0070.04310.38
5.1.20.0000.04010.24
5.1.10.0130.02710.12
5.1.00.0070.0339.97
5.0.50.0100.0238.47
5.0.40.0100.0278.48
5.0.30.0070.0408.14
5.0.20.0070.0238.11
5.0.10.0000.0308.05
5.0.00.0070.0408.20
4.4.90.0100.0135.86
4.4.80.0030.0305.76
4.4.70.0000.0235.83
4.4.60.0000.0235.73
4.4.50.0000.0275.76
4.4.40.0000.0375.88
4.4.30.0030.0205.84
4.4.20.0000.0235.90
4.4.10.0070.0205.87
4.4.00.0030.0335.88
4.3.110.0070.0175.69
4.3.100.0000.0235.79
4.3.90.0000.0235.67
4.3.80.0030.0335.75
4.3.70.0030.0205.80
4.3.60.0000.0235.80
4.3.50.0070.0175.73
4.3.40.0000.0335.61
4.3.30.0000.0234.44
4.3.20.0030.0204.49
4.3.10.0070.0174.45
4.3.00.0000.01715.37

preferences:
62.99 ms | 401 KiB | 5 Q