3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = "really a string"; var_dump(isset($array['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)
8.3.60.0090.00618.23
8.3.50.0110.00721.96
8.3.40.0140.00718.44
8.3.30.0090.00618.96
8.3.20.0040.00420.16
8.3.10.0040.00423.45
8.3.00.0040.00419.62
8.2.180.0100.01316.63
8.2.170.0090.00622.96
8.2.160.0100.00320.18
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0050.00321.05
8.2.110.0060.00319.39
8.2.100.0080.00417.91
8.2.90.0050.00318.98
8.2.80.0030.00617.97
8.2.70.0040.00417.50
8.2.60.0040.00417.80
8.2.50.0000.00818.10
8.2.40.0000.00820.60
8.2.30.0000.00819.30
8.2.20.0040.00417.67
8.2.10.0040.00417.89
8.2.00.0070.00017.67
8.1.280.0110.00425.92
8.1.270.0000.00924.04
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00624.02
8.1.230.0040.00717.95
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0050.00517.22
8.1.190.0050.00317.10
8.1.180.0040.00418.10
8.1.170.0030.00618.34
8.1.160.0040.00418.68
8.1.150.0050.00220.06
8.1.140.0040.00417.37
8.1.130.0070.00017.76
8.1.120.0030.00317.39
8.1.110.0040.00417.38
8.1.100.0000.00717.26
8.1.90.0000.00717.25
8.1.80.0040.00417.32
8.1.70.0040.00417.36
8.1.60.0030.00617.41
8.1.50.0000.00817.33
8.1.40.0040.00417.45
8.1.30.0060.00317.56
8.1.20.0000.00717.47
8.1.10.0000.00817.58
8.1.00.0000.00817.49
8.0.300.0000.00718.77
8.0.290.0080.00016.63
8.0.280.0040.00418.37
8.0.270.0040.00417.18
8.0.260.0030.00317.24
8.0.250.0000.00716.93
8.0.240.0000.00716.84
8.0.230.0070.00016.90
8.0.220.0070.00016.70
8.0.210.0040.00416.81
8.0.200.0000.00716.76
8.0.190.0080.00016.79
8.0.180.0030.00316.88
8.0.170.0050.00316.75
8.0.160.0000.00716.67
8.0.150.0050.00216.66
8.0.140.0070.00016.74
8.0.130.0030.00313.29
8.0.120.0040.00416.79
8.0.110.0000.00816.80
8.0.100.0050.00316.76
8.0.90.0000.00816.85
8.0.80.0040.01116.84
8.0.70.0030.00516.68
8.0.60.0050.00316.69
8.0.50.0040.00416.83
8.0.30.0090.01017.07
8.0.20.0100.01217.40
8.0.10.0070.00016.92
8.0.00.0100.00716.78
7.4.330.0000.00615.14
7.4.320.0030.00316.57
7.4.300.0040.00416.56
7.4.290.0030.00316.57
7.4.280.0000.00916.49
7.4.270.0040.00416.56
7.4.260.0030.00316.49
7.4.250.0040.00416.48
7.4.240.0000.00716.47
7.4.230.0000.00716.36
7.4.220.0100.00716.62
7.4.210.0030.01016.44
7.4.200.0030.00316.53
7.4.160.0170.00616.47
7.4.150.0100.00717.40
7.4.140.0080.00917.86
7.4.130.0110.00616.37
7.4.120.0100.00716.40
7.4.110.0100.00716.43
7.4.100.0120.00816.44
7.4.90.0080.01116.35
7.4.80.0140.00319.39
7.4.70.0100.00516.35
7.4.60.0060.00916.16
7.4.50.0030.00616.57
7.4.40.0090.00916.31
7.4.30.0160.00016.18
7.4.00.0030.01215.10
7.3.330.0050.00013.02
7.3.320.0050.00013.03
7.3.310.0040.00416.27
7.3.300.0030.00316.09
7.3.290.0060.00816.24
7.3.280.0120.00416.22
7.3.270.0090.01217.40
7.3.260.0070.01716.42
7.3.250.0070.01116.42
7.3.240.0060.00916.37
7.3.230.0280.01116.39
7.3.210.0120.00616.47
7.3.200.0120.00919.39
7.3.190.0090.00916.18
7.3.180.0030.01316.56
7.3.170.0080.00816.51
7.3.160.0120.00316.20
7.3.120.0030.01014.96
7.2.330.0140.00316.54
7.2.320.0160.00016.32
7.2.310.0060.01616.46
7.2.300.0180.00316.36
7.2.290.0060.00916.40
7.2.00.0110.01118.96
7.1.100.0040.01218.12
7.1.70.0000.00817.17
7.1.60.0060.01619.70
7.1.50.0180.01834.74
7.1.00.0100.07022.27
7.0.200.0000.00716.66
7.0.140.0030.07721.97
7.0.60.0130.06320.03
7.0.50.0030.08317.80
7.0.40.0030.09020.24
7.0.30.0530.07320.16
7.0.20.0200.07320.00
7.0.10.0100.08020.17
7.0.00.0000.05020.12
5.6.280.0100.06721.07
5.6.210.0100.09020.62
5.6.200.0170.07318.12
5.6.190.0030.05720.44
5.6.180.3930.04020.59
5.6.170.0270.06720.50
5.6.160.0000.09020.46
5.6.150.0030.08018.21
5.6.140.0070.03718.22
5.6.130.0070.06018.18
5.6.120.0130.05721.11
5.6.110.0130.07720.99
5.6.100.0070.06721.10
5.6.90.0000.09020.97
5.6.80.0170.06720.43
5.6.70.4400.03720.37
5.5.350.0030.08020.34
5.5.340.0000.07018.02
5.5.330.0030.05020.41
5.5.320.0270.06720.30
5.5.310.0270.05720.30
5.5.300.0070.05717.88
5.5.290.0070.05017.98
5.5.280.0070.07720.69
5.5.270.0030.09020.86
5.5.260.0030.09720.95
5.5.250.0000.05720.60
5.5.240.0170.03020.36
5.4.450.0070.08019.14
5.4.440.0130.07019.40
5.4.430.0000.08019.56
5.4.420.0000.04719.54
5.4.410.0070.07019.41
5.4.400.0000.06719.07
5.4.390.0070.07718.92
5.4.380.0000.07319.25
5.4.370.0000.06318.93
5.4.360.0000.06019.24
5.4.350.0030.04719.13
5.4.340.0000.04718.92
5.4.320.0000.04318.81
5.4.310.0000.06318.88
5.4.300.0100.03018.80
5.4.290.0000.08018.80
5.4.280.0030.04319.09
5.4.270.0000.06718.80
5.4.260.0030.05019.24
5.4.250.0030.06319.23
5.4.240.0030.04319.23
5.4.230.0030.07719.07
5.4.220.0000.05018.78
5.4.210.0000.05018.80
5.4.200.0030.05019.04
5.4.190.0000.07319.02
5.4.180.0100.04319.09
5.4.170.0000.06019.05
5.4.160.0030.07019.04
5.4.150.0000.05019.07
5.4.140.0070.07016.38
5.4.130.0030.04716.26
5.4.120.0070.07016.43
5.4.110.0070.07316.51
5.4.100.0130.03016.31
5.4.90.0030.07716.30
5.4.80.0000.05316.45
5.4.70.0030.06016.44
5.4.60.0070.03016.24
5.4.50.0000.03716.31
5.4.40.0070.03016.36
5.4.30.0000.04016.36
5.4.20.0000.04016.39
5.4.10.0000.04016.39
5.4.00.0000.03315.63
5.3.290.0030.08314.61
5.3.280.0030.07314.52
5.3.270.0030.06714.47
5.3.260.0030.05014.54
5.3.250.0000.04314.55
5.3.240.0000.06314.47
5.3.230.0070.07014.42
5.3.220.0030.08014.52
5.3.210.0070.07314.40
5.3.200.0000.06014.47
5.3.190.0030.04014.51
5.3.180.0030.05014.49
5.3.170.0070.07014.40
5.3.160.0000.03714.42
5.3.150.0000.03714.39
5.3.140.0000.04014.40
5.3.130.0000.03714.49
5.3.120.0000.04314.47
5.3.110.0000.03714.57
5.3.100.0030.03313.98
5.3.90.0000.03714.00
5.3.80.0000.03713.84
5.3.70.0070.03014.06
5.3.60.0030.03313.88
5.3.50.0000.04713.85
5.3.40.0000.03313.89
5.3.30.0000.03313.84
5.3.20.0030.03713.62
5.3.10.0030.03313.50
5.3.00.0000.03313.46
5.2.170.0030.02712.50
5.2.160.0000.02712.50
5.2.150.0030.03012.50
5.2.140.0000.03312.50
5.2.130.0030.02312.50
5.2.120.0000.02712.50
5.2.110.0000.02712.50
5.2.100.0000.02712.50
5.2.90.0000.02712.50
5.2.80.0000.03012.50
5.2.70.0000.03312.50
5.2.60.0000.02712.50
5.2.50.0030.03012.50
5.2.40.0000.03012.50
5.2.30.0000.03012.50
5.2.20.0000.02712.50
5.2.10.0030.02312.50
5.2.00.0030.03012.50
5.1.60.0000.02312.50
5.1.50.0000.02712.50
5.1.40.0000.02312.50
5.1.30.0030.02312.50
5.1.20.0030.02312.50
5.1.10.0000.03012.50
5.1.00.0000.02312.50
5.0.50.0000.02012.50
5.0.40.0000.02012.50
5.0.30.0000.03012.50
5.0.20.0000.02312.50
5.0.10.0000.02012.50
5.0.00.0000.03012.50
4.4.90.0000.01712.50
4.4.80.0000.01312.50
4.4.70.0000.01712.50
4.4.60.0000.01312.50
4.4.50.0000.01312.50
4.4.40.0030.02312.50
4.4.30.0000.01312.50
4.4.20.0030.01312.50
4.4.10.0000.01712.50
4.4.00.0030.02012.50
4.3.110.0000.01712.50
4.3.100.0000.01712.50
4.3.90.0000.01712.50
4.3.80.0000.02712.50
4.3.70.0000.01312.50
4.3.60.0000.01312.50
4.3.50.0000.01712.50
4.3.40.0000.05312.50
4.3.30.0000.02312.50
4.3.20.0030.02712.50
4.3.10.0030.02312.50
4.3.00.0000.04012.50

preferences:
46.69 ms | 401 KiB | 5 Q