3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { } function deleteMe(&$obj) { $obj = (unset) $obj; } $foo = new Foo(); var_dump($foo); deleteMe($foo); var_dump($foo); debug_zval_dump($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)
8.3.60.0200.00018.55
8.3.50.0120.00521.14
8.3.40.0090.00618.60
8.3.30.0140.00318.84
8.3.20.0040.00420.21
8.3.10.0050.00321.95
8.3.00.0050.00322.50
8.2.180.0040.01116.50
8.2.170.0040.01122.96
8.2.160.0140.00319.04
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0130.00626.16
8.2.120.0050.00319.64
8.2.110.0000.00920.38
8.2.100.0040.00719.26
8.2.90.0040.00418.96
8.2.80.0000.00819.21
8.2.70.0080.00017.50
8.2.60.0000.00917.80
8.2.50.0040.00418.07
8.2.40.0000.00718.09
8.2.30.0040.00418.03
8.2.20.0040.00417.40
8.2.10.0000.00717.56
8.2.00.0090.00317.42
8.1.280.0090.00625.92
8.1.270.0040.00423.99
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0060.00320.94
8.1.230.0080.00319.01
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0080.00017.05
8.1.180.0000.00818.27
8.1.170.0030.00518.41
8.1.160.0040.00422.06
8.1.150.0030.00518.42
8.1.140.0000.00717.25
8.1.130.0000.00717.76
8.1.120.0080.00017.29
8.1.110.0040.00417.34
8.1.100.0030.00417.38
8.1.90.0040.00417.29
8.1.80.0040.00417.26
8.1.70.0030.00317.28
8.1.60.0040.00417.45
8.1.50.0000.00717.33
8.1.40.0040.00417.32
8.1.30.0000.00817.41
8.1.20.0080.00017.54
8.1.10.0000.00717.44
8.1.00.0040.00417.25
8.0.300.0040.00418.77
8.0.290.0000.00716.91
8.0.280.0030.00318.37
8.0.270.0030.00317.03
8.0.260.0060.00016.75
8.0.250.0000.00716.88
8.0.240.0050.00316.88
8.0.230.0000.00716.76
8.0.220.0000.00716.70
8.0.210.0030.00316.79
8.0.200.0000.00616.87
8.0.190.0040.00416.80
8.0.180.0050.00316.78
8.0.170.0000.00716.80
8.0.160.0000.00716.72
8.0.150.0040.00416.78
8.0.140.0040.00416.79
8.0.130.0000.00513.33
8.0.120.0040.00416.78
8.0.110.0000.00816.84
8.0.100.0000.00716.71
8.0.90.0000.00716.63
8.0.80.0170.00016.76
8.0.70.0040.00416.76
8.0.60.0030.00516.84
8.0.50.0040.00416.84
8.0.30.0090.01016.90
8.0.20.0080.01017.40
8.0.10.0040.00416.76
8.0.00.0070.01116.68
7.4.330.0000.00415.00
7.4.320.0040.00416.59
7.4.300.0060.00016.59
7.4.290.0050.00216.50
7.4.280.0040.00416.57
7.4.270.0030.00316.49
7.4.260.0030.00316.58
7.4.250.0080.00016.59
7.4.240.0040.00416.46
7.4.230.0000.00716.38
7.4.220.0110.00516.54
7.4.210.0110.00616.62
7.4.200.0000.00716.70
7.4.190.0000.00716.39
7.4.160.0080.00816.49
7.4.150.0060.01217.40
7.4.140.0110.00717.86
7.4.130.0120.00716.52
7.4.120.0090.01016.54
7.4.110.0130.01016.64
7.4.100.0100.01316.43
7.4.90.0100.00616.64
7.4.80.0150.00319.39
7.4.70.0170.00016.26
7.4.60.0130.00316.52
7.4.50.0040.00416.68
7.4.40.0000.01622.77
7.4.30.0080.00816.50
7.4.00.0040.01114.83
7.3.330.0000.00613.43
7.3.320.0030.00213.21
7.3.310.0000.00716.21
7.3.300.0070.00016.37
7.3.290.0040.01416.36
7.3.280.0050.01116.35
7.3.270.0030.01517.40
7.3.260.0200.00316.32
7.3.250.0060.01116.38
7.3.240.0140.00616.44
7.3.230.0080.01216.51
7.3.210.0060.01216.34
7.3.200.0070.01019.39
7.3.190.0120.00616.51
7.3.180.0130.00316.52
7.3.170.0030.01316.59
7.3.160.0090.00616.36
7.3.120.0000.01514.82
7.2.330.0100.00716.47
7.2.320.0180.00316.38
7.2.310.0080.00816.54
7.2.300.0150.00716.63
7.2.290.0060.01016.31
7.2.60.0000.01516.85
7.2.00.0030.01019.40
7.1.200.0060.00915.81
7.1.100.0070.00718.12
7.1.70.0080.00417.24
7.1.60.0070.01719.82
7.1.50.0030.02017.05
7.1.00.0030.07322.50
7.0.200.0040.00416.81
7.0.140.0070.07021.93
7.0.100.0130.05020.16
7.0.90.0070.07319.88
7.0.80.0070.08319.91
7.0.70.0070.04720.01
7.0.60.0030.08019.91
7.0.50.0030.05320.31
7.0.40.0070.08020.03
7.0.30.0100.04020.08
7.0.20.0230.07020.11
7.0.10.0100.07720.11
7.0.00.0100.07020.06
5.6.280.0030.07021.05
5.6.250.0070.08320.67
5.6.240.0070.05320.64
5.6.230.0070.05020.66
5.6.220.0000.08020.70
5.6.210.0030.05020.75
5.6.200.0070.07721.04
5.6.190.0100.07721.11
5.6.180.0200.05721.01
5.6.170.0070.08320.96
5.6.160.0100.04720.96
5.6.150.0130.08021.04
5.6.140.0070.04020.96
5.6.130.0170.08021.09
5.6.120.0000.09021.06
5.6.110.0070.05021.10
5.6.100.0030.08021.08
5.6.90.0100.08720.93
5.6.80.0130.06720.30
5.6.70.0030.06720.43
5.6.60.0030.05320.39
5.6.50.0030.07720.41
5.6.40.0200.06720.32
5.6.30.0030.08720.47
5.6.20.0030.08020.52
5.6.10.0030.07720.34
5.6.00.0070.07320.48
5.5.380.0170.05720.38
5.5.370.0170.07020.40
5.5.360.0130.04320.34
5.5.350.0100.04720.41
5.5.340.0070.06720.93
5.5.330.0100.07320.89
5.5.320.0030.07020.74
5.5.310.0030.08320.78
5.5.300.0070.04320.77
5.5.290.0200.07320.77
5.5.280.0070.08320.80
5.5.270.0130.07320.78
5.5.260.0070.08320.89
5.5.250.0100.05320.73
5.5.240.0130.08020.27
5.5.230.0030.04720.17
5.5.220.0170.06720.18
5.5.210.0130.06720.29
5.5.200.0100.06320.15
5.5.190.0170.06720.20
5.5.180.0000.06720.28
5.5.160.0030.08320.21
5.5.150.0100.06020.14
5.5.140.0030.07320.22
5.5.130.0100.07020.27
5.5.120.0000.07720.25
5.5.110.0070.07020.23
5.5.100.0070.05020.07
5.5.90.0200.06320.06
5.5.80.0070.06720.05
5.5.70.0130.07320.14
5.5.60.0100.07720.06
5.5.50.0030.08020.08
5.5.40.0070.07720.05
5.5.30.0100.07720.11
5.5.20.0170.06720.09
5.5.10.0100.04320.01
5.5.00.0100.04020.03
5.4.450.0070.07019.37
5.4.440.0100.04719.17
5.4.430.0070.04719.23
5.4.420.0100.07719.27
5.4.410.0170.07319.23
5.4.400.0070.07319.05
5.4.390.0000.05319.06
5.4.380.0130.07719.03
5.4.370.0070.07718.95
5.4.360.0100.08019.16
5.4.350.0100.06018.92
5.4.340.0070.05319.16
5.4.320.0130.07019.18
5.4.310.0130.07018.87
5.4.300.0030.08019.18
5.4.290.0100.08019.13
5.4.280.0130.03719.02
5.4.270.0170.06019.07
5.4.260.0200.06719.12
5.4.250.0170.07019.05
5.4.240.0100.07018.94
5.4.230.0030.08318.90
5.4.220.0130.07318.87
5.4.210.0070.08019.04
5.4.200.0030.08019.11
5.4.190.0100.07319.13
5.4.180.0030.08019.13
5.4.170.0070.07719.17
5.4.160.0100.04019.21
5.4.150.0130.07019.11
5.4.140.0130.05316.55
5.4.130.0000.07716.24
5.4.120.0070.06716.52
5.4.110.0070.07716.44
5.4.100.0100.07016.40
5.4.90.0100.06716.44
5.4.80.0070.05716.31
5.4.70.0070.06716.43
5.4.60.0100.04016.48
5.4.50.0130.07016.40
5.4.40.0100.06716.53
5.4.30.0070.04016.33
5.4.20.0170.05716.33
5.4.10.0100.04316.44
5.4.00.0070.07315.85
5.3.290.0030.04714.62
5.3.280.0100.07314.71
5.3.270.0100.07014.58
5.3.260.0030.07714.71
5.3.250.0070.07714.59
5.3.240.0100.06014.57
5.3.230.0100.07714.69
5.3.220.0000.08014.63
5.3.210.0030.04714.48
5.3.200.0030.06014.55
5.3.190.0100.06314.56
5.3.180.0100.07314.57
5.3.170.0170.06314.55
5.3.160.0100.07314.56
5.3.150.0100.05314.65
5.3.140.0030.04714.48
5.3.130.0030.04714.63
5.3.120.0070.07314.51
5.3.110.0100.07314.63
5.3.100.0100.07014.14
5.3.90.0000.06313.94
5.3.80.0030.04014.04
5.3.70.0100.06714.11
5.3.60.0130.07014.00
5.3.50.0170.06014.05
5.3.40.0100.06314.00
5.3.30.0170.06013.96
5.3.20.0070.07013.70
5.3.10.0070.07013.57
5.3.00.0030.08013.67
5.2.170.0030.06011.03
5.2.160.0000.04011.23
5.2.150.0070.04311.28
5.2.140.0100.04011.23
5.2.130.0070.03311.18
5.2.120.0030.05311.01
5.2.110.0000.06711.16
5.2.100.0000.03710.99
5.2.90.0030.05011.18
5.2.80.0030.05711.14
5.2.70.0030.03311.07
5.2.60.0100.04711.20
5.2.50.0030.06310.93
5.2.40.0100.03710.91
5.2.30.0100.05711.10
5.2.20.0100.05310.91
5.2.10.0030.06310.89
5.2.00.0070.05710.80
5.1.60.0000.0579.84
5.1.50.0000.0579.88
5.1.40.0100.04710.09
5.1.30.0070.05010.27
5.1.20.0070.05310.41
5.1.10.0070.05310.15
5.1.00.0070.04710.08
5.0.50.0030.0478.64
5.0.40.0000.0478.64
5.0.30.0000.0708.64
5.0.20.0070.0378.64
5.0.10.0030.0338.64
5.0.00.0030.0408.64
4.4.90.0000.0338.64
4.4.80.0030.0308.64
4.4.70.0070.0278.64
4.4.60.0030.0178.64
4.4.50.0100.0108.64
4.4.40.0000.0538.64
4.4.30.0000.0408.64
4.4.20.0030.0308.64
4.4.10.0030.0338.64
4.4.00.0070.0538.64
4.3.110.0030.0208.64
4.3.100.0070.0378.64
4.3.90.0070.0338.64
4.3.80.0030.0578.64
4.3.70.0070.0278.64
4.3.60.0030.0308.64
4.3.50.0070.0338.64
4.3.40.0000.0538.64
4.3.30.0030.0338.64
4.3.20.0000.0378.64
4.3.10.0000.0308.64
4.3.00.0030.0338.64

preferences:
37.48 ms | 401 KiB | 5 Q