3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo $wat; unset($wat); echo $wat;

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)
8.3.60.0140.00018.52
8.3.50.0090.00721.90
8.3.40.0100.01018.71
8.3.30.0060.01218.74
8.3.20.0040.00420.21
8.3.10.0050.00322.11
8.3.00.0040.00422.39
8.2.180.0160.00716.63
8.2.170.0150.00022.96
8.2.160.0170.00320.82
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00419.20
8.2.110.0030.00622.14
8.2.100.0070.00317.66
8.2.90.0080.00019.05
8.2.80.0050.00317.97
8.2.70.0030.00617.63
8.2.60.0040.00417.91
8.2.50.0030.00618.07
8.2.40.0050.00318.22
8.2.30.0030.00617.91
8.2.20.0040.00417.69
8.2.10.0000.00717.55
8.2.00.0000.00817.77
8.1.280.0150.00025.92
8.1.270.0050.00323.96
8.1.260.0040.00426.35
8.1.250.0090.00928.09
8.1.240.0060.00323.79
8.1.230.0070.00319.22
8.1.220.0000.00817.74
8.1.210.0060.00318.77
8.1.200.0060.00317.10
8.1.190.0040.00417.28
8.1.180.0040.00418.10
8.1.170.0080.00018.46
8.1.160.0040.00421.88
8.1.150.0040.00418.47
8.1.140.0000.00717.23
8.1.130.0030.00317.63
8.1.120.0000.00717.38
8.1.110.0040.00417.21
8.1.100.0000.00817.32
8.1.90.0040.00417.16
8.1.80.0040.00417.36
8.1.70.0000.00717.29
8.1.60.0040.00417.46
8.1.50.0040.00417.26
8.1.40.0050.00217.37
8.1.30.0000.00817.48
8.1.20.0070.00017.56
8.1.10.0080.00017.43
8.1.00.0040.00417.42
8.0.300.0000.00818.77
8.0.290.0000.00717.15
8.0.280.0030.00318.38
8.0.270.0030.00317.20
8.0.260.0050.00316.68
8.0.250.0000.00616.96
8.0.240.0030.00316.86
8.0.230.0050.00216.85
8.0.220.0030.00316.80
8.0.210.0030.00316.79
8.0.200.0070.00016.91
8.0.190.0000.00816.73
8.0.180.0070.00016.70
8.0.170.0060.00316.88
8.0.160.0000.00716.84
8.0.150.0050.00216.69
8.0.140.0040.00416.64
8.0.130.0030.00313.21
8.0.120.0030.00516.79
8.0.110.0030.00316.78
8.0.100.0050.00216.78
8.0.90.0040.00416.71
8.0.80.0160.00016.78
8.0.70.0000.00716.78
8.0.60.0040.00416.68
8.0.50.0070.00016.87
8.0.30.0130.00516.94
8.0.20.0110.00917.40
8.0.10.0040.00416.82
8.0.00.0110.00816.73
7.4.330.0000.00515.00
7.4.320.0000.00716.47
7.4.300.0000.00716.39
7.4.290.0030.00316.41
7.4.280.0030.00316.37
7.4.270.0070.00316.36
7.4.260.0070.00016.37
7.4.250.0050.00216.42
7.4.240.0020.00516.46
7.4.230.0000.00716.52
7.4.220.0060.00916.49
7.4.210.0110.00516.47
7.4.200.0000.00716.56
7.4.190.0030.00316.60
7.4.160.0170.00616.18
7.4.150.0120.00617.40
7.4.140.0140.00617.86
7.4.130.0100.01516.57
7.4.120.0060.01016.39
7.4.110.0060.01516.39
7.4.100.0140.00316.50
7.4.90.0060.01216.35
7.4.80.0080.00819.39
7.4.70.0120.00616.41
7.4.60.0150.00016.55
7.4.50.0030.00516.30
7.4.40.0030.01322.77
7.4.30.0060.01016.26
7.4.00.0030.01214.93
7.3.330.0030.00313.17
7.3.320.0030.00313.09
7.3.310.0060.00016.22
7.3.300.0000.00716.20
7.3.290.0150.00416.27
7.3.280.0090.00916.27
7.3.270.0070.01017.40
7.3.260.0170.00916.30
7.3.250.0090.01116.51
7.3.240.0030.01416.55
7.3.230.0060.01216.39
7.3.210.0110.01216.22
7.3.200.0110.00719.39
7.3.190.0060.01716.48
7.3.180.0030.01316.46
7.3.170.0090.00616.28
7.3.160.0040.01316.38
7.3.120.0120.00314.50
7.2.330.0120.00616.52
7.2.320.0070.01716.43
7.2.310.0090.00616.37
7.2.300.0120.00616.30
7.2.290.0110.00616.57
7.2.80.0100.00516.63
7.2.60.0130.00316.52
7.2.50.0170.00316.86
7.2.00.0000.00819.43
7.1.200.0060.00615.59
7.1.100.0040.01118.00
7.1.70.0050.00517.05
7.1.60.0070.01819.82
7.1.50.0070.01116.83
7.1.00.0030.07722.42
7.0.200.0110.00416.31
7.0.140.0100.06321.99
7.0.70.0030.04321.68
7.0.60.0070.07321.82
7.0.50.0000.09022.04
7.0.40.0000.09020.18
7.0.30.0000.09020.14
7.0.20.0130.05720.02
7.0.10.0070.07720.13
7.0.00.0100.08320.18
5.6.280.0030.07320.77
5.6.220.0070.06720.48
5.6.210.0070.07720.55
5.6.200.0170.07021.03
5.6.190.0030.09021.08
5.6.180.0100.08320.91
5.6.170.0000.08320.93
5.6.160.0000.09021.02
5.6.150.0070.08321.01
5.6.140.0100.08721.12
5.6.130.0070.06721.16
5.6.120.0030.08721.04
5.6.110.0070.08020.93
5.6.100.0130.03721.15
5.6.90.0170.06021.00
5.6.80.0070.07720.48
5.6.70.0070.07020.44
5.6.60.0000.08320.29
5.6.50.0030.04720.36
5.6.40.0030.05720.29
5.6.30.0070.07320.37
5.6.20.0100.06720.35
5.6.10.0030.07320.48
5.6.00.0030.07720.38
5.5.360.0000.09020.34
5.5.350.0030.04320.45
5.5.340.0030.08720.86
5.5.330.0000.09020.89
5.5.320.0030.05720.77
5.5.310.0030.06020.82
5.5.300.0070.08020.88
5.5.290.0000.08720.88
5.5.280.0030.07320.75
5.5.270.0070.09020.80
5.5.260.0000.06720.89
5.5.250.0070.08020.66
5.5.240.0030.07020.21
5.5.230.0100.07720.24
5.5.220.0030.08020.26
5.5.210.0030.05020.20
5.5.200.0070.08020.27
5.5.190.0070.05320.08
5.5.180.0070.06320.25
5.5.160.0070.08720.17
5.5.150.0070.07720.20
5.5.140.0030.08320.13
5.5.130.0070.07320.20
5.5.120.0100.06720.20
5.5.110.0000.08020.23
5.5.100.0070.08320.06
5.5.90.0130.06020.00
5.5.80.0070.07320.05
5.5.70.0100.06020.05
5.5.60.0070.07319.99
5.5.50.0030.04320.05
5.5.40.0030.04319.99
5.5.30.0100.07319.89
5.5.20.0070.07719.94
5.5.10.0000.06720.03
5.5.00.0000.06019.92
5.4.450.0070.08019.40
5.4.440.0000.05719.38
5.4.430.0070.08019.29
5.4.420.0100.07319.31
5.4.410.0030.05319.25
5.4.400.0070.05719.07
5.4.390.0070.08019.03
5.4.380.0030.05719.03
5.4.370.0030.04019.23
5.4.360.0030.06018.93
5.4.350.0000.04719.04
5.4.340.0070.07319.05
5.4.320.0100.07318.96
5.4.310.0030.07718.81
5.4.300.0070.07319.05
5.4.290.0000.05019.02
5.4.280.0030.05018.96
5.4.270.0000.08018.78
5.4.260.0000.07719.06
5.4.250.0030.06019.22
5.4.240.0070.07719.07
5.4.230.0030.07719.13
5.4.220.0070.04718.97
5.4.210.0000.04719.02
5.4.200.0100.07319.11
5.4.190.0000.06318.77
5.4.180.0130.07019.06
5.4.170.0000.05319.13
5.4.160.0030.08318.95
5.4.150.0100.07719.03
5.4.140.0000.08016.31
5.4.130.0000.07716.36
5.4.120.0000.08016.27
5.4.110.0030.05316.26
5.4.100.0070.07016.33
5.4.90.0070.06716.30
5.4.80.0000.08016.22
5.4.70.0000.06016.36
5.4.60.0070.06716.24
5.4.50.0000.05016.23
5.4.40.0030.04716.29
5.4.30.0100.05716.27
5.4.20.0030.07316.39
5.4.10.0070.07716.40
5.4.00.0070.07015.81
5.3.290.0030.07714.64
5.3.280.0070.07314.53
5.3.270.0070.06014.55
5.3.260.0030.08014.55
5.3.250.0130.05314.59
5.3.240.0000.05314.42
5.3.230.0000.08314.55
5.3.220.0000.08314.50
5.3.210.0030.07714.55
5.3.200.0030.07014.54
5.3.190.0100.04314.42
5.3.180.0070.07014.57
5.3.170.0030.08014.42
5.3.160.0000.05014.50
5.3.150.0000.07314.42
5.3.140.0000.07314.50
5.3.130.0100.07314.45
5.3.120.0030.05314.52
5.3.110.0000.08714.39
5.3.100.0030.08014.04
5.3.90.0030.06014.02
5.3.80.0030.07314.02
5.3.70.0000.07313.92
5.3.60.0070.06714.00
5.3.50.0070.07313.94
5.3.40.0030.07313.69
5.3.30.0000.08013.89
5.3.20.0000.08013.67
5.3.10.0030.06713.65
5.3.00.0070.06713.61
5.2.170.0030.06012.35
5.2.160.0030.06312.35
5.2.150.0070.06012.35
5.2.140.0070.06012.35
5.2.130.0030.05712.35
5.2.120.0030.04712.35
5.2.110.0000.06012.35
5.2.100.0030.05712.35
5.2.90.0030.05712.35
5.2.80.0100.04012.35
5.2.70.0030.06012.35
5.2.60.0000.05312.35
5.2.50.0070.03312.35
5.2.40.0070.05712.35
5.2.30.0030.05012.35
5.2.20.0030.06012.35
5.2.10.0030.03712.35
5.2.00.0000.04712.35
5.1.60.0070.05012.35
5.1.50.0000.06012.35
5.1.40.0030.03312.35
5.1.30.0030.05012.35
5.1.20.0070.04312.35
5.1.10.0030.05312.35
5.1.00.0000.04012.35
5.0.50.0070.04012.35
5.0.40.0070.03712.35
5.0.30.0030.06712.35
5.0.20.0000.04712.35
5.0.10.0070.03712.35
5.0.00.0000.07012.35
4.4.90.0000.03012.35
4.4.80.0030.02012.35
4.4.70.0030.02712.35
4.4.60.0030.02712.35
4.4.50.0000.02312.35
4.4.40.0000.05712.35
4.4.30.0030.03012.35
4.4.20.0000.02312.35
4.4.10.0030.03712.35
4.4.00.0030.04312.35
4.3.110.0000.02712.35
4.3.100.0030.02312.35
4.3.90.0000.03712.35
4.3.80.0000.05712.35
4.3.70.0000.03012.35
4.3.60.0000.03712.35
4.3.50.0000.03712.35
4.3.40.0030.05312.35
4.3.30.0000.04012.35
4.3.20.0000.03312.35
4.3.10.0030.03312.35
4.3.00.0030.03012.35

preferences:
49.02 ms | 401 KiB | 5 Q