3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "Hello"; (unset) $a; var_dump($a);

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)
8.3.60.0090.00918.25
8.3.50.0220.01421.00
8.3.40.0060.00918.67
8.3.30.0100.00318.48
8.3.20.0040.00420.04
8.3.10.0000.00821.72
8.3.00.0040.00419.68
8.2.180.0140.00318.39
8.2.170.0120.00422.96
8.2.160.0090.00619.01
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00417.50
8.2.110.0080.00321.96
8.2.100.0090.00317.63
8.2.90.0040.00418.98
8.2.80.0050.00317.97
8.2.70.0030.00517.50
8.2.60.0040.00817.55
8.2.50.0040.00418.07
8.2.40.0030.00619.28
8.2.30.0040.00419.73
8.2.20.0000.00717.52
8.2.10.0050.00317.84
8.2.00.0000.00717.86
8.1.280.0090.00625.92
8.1.270.0060.00320.20
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00622.40
8.1.230.0080.00417.42
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0080.00017.00
8.1.190.0000.00817.23
8.1.180.0050.00318.10
8.1.170.0030.00518.28
8.1.160.0000.00721.92
8.1.150.0070.00018.70
8.1.140.0030.00517.30
8.1.130.0030.00317.61
8.1.120.0000.00717.34
8.1.110.0070.00017.27
8.1.100.0080.00017.38
8.1.90.0040.00417.16
8.1.80.0000.00717.22
8.1.70.0000.00817.27
8.1.60.0080.00017.39
8.1.50.0030.00517.36
8.1.40.0040.00417.42
8.1.30.0050.00317.47
8.1.20.0000.00817.35
8.1.10.0040.00417.37
8.1.00.0000.00817.22
8.0.300.0100.00018.77
8.0.290.0070.00016.63
8.0.280.0030.00318.30
8.0.270.0040.00416.96
8.0.260.0000.00617.12
8.0.250.0040.00416.86
8.0.240.0030.00516.87
8.0.230.0030.00516.89
8.0.220.0000.00716.86
8.0.210.0070.00016.77
8.0.200.0000.00616.79
8.0.190.0000.00716.81
8.0.180.0040.00416.82
8.0.170.0040.00416.81
8.0.160.0070.00016.87
8.0.150.0000.00716.73
8.0.140.0000.00816.76
8.0.130.0000.00513.12
8.0.120.0020.00516.75
8.0.110.0040.00416.79
8.0.100.0000.00716.83
8.0.90.0040.00416.78
8.0.80.0090.00616.82
8.0.70.0040.00416.77
8.0.60.0050.00316.67
8.0.50.0040.00416.85
8.0.30.0090.01016.94
8.0.20.0110.00717.40
8.0.10.0000.00816.85
8.0.00.0090.00816.57
7.4.330.0050.00015.08
7.4.320.0040.00416.47
7.4.300.0000.00616.63
7.4.290.0030.00316.63
7.4.280.0040.00416.48
7.4.270.0020.00516.41
7.4.260.0000.00716.50
7.4.250.0080.00016.46
7.4.240.0020.00516.51
7.4.230.0030.00316.29
7.4.220.0090.00916.56
7.4.210.0040.01116.56
7.4.200.0020.00516.41
7.4.160.0130.00716.55
7.4.150.0120.01217.40
7.4.140.0170.00817.86
7.4.130.0080.01216.46
7.4.120.0050.01416.52
7.4.110.0090.00916.59
7.4.100.0070.01116.51
7.4.90.0140.00316.54
7.4.80.0180.01019.39
7.4.70.0070.01016.41
7.4.60.0040.01416.46
7.4.50.0000.00616.65
7.4.40.0100.00616.33
7.4.30.0120.00916.43
7.4.00.0080.00915.09
7.3.330.0000.00513.09
7.3.320.0000.00513.19
7.3.310.0020.00516.20
7.3.300.0000.00616.05
7.3.290.0090.01016.24
7.3.280.0110.00816.24
7.3.270.0090.00917.40
7.3.260.0100.00716.27
7.3.240.0090.00816.30
7.3.230.0140.00916.39
7.3.210.0160.00016.20
7.3.200.0070.01016.43
7.3.190.0030.01616.30
7.3.180.0100.00616.29
7.3.170.0100.00716.30
7.3.160.0030.01316.25
7.3.120.0030.01414.68
7.3.110.0120.00614.74
7.3.100.0060.00914.78
7.3.90.0140.00014.98
7.3.80.0000.01414.79
7.3.70.0040.01414.82
7.3.60.0120.00614.81
7.3.50.0070.00714.52
7.3.40.0030.01014.73
7.3.30.0030.01214.46
7.3.20.0060.00916.49
7.3.10.0060.00516.60
7.3.00.0060.00716.53
7.2.330.0070.01116.39
7.2.320.0090.00916.56
7.2.310.0100.01016.64
7.2.300.0070.01016.60
7.2.290.0090.01216.64
7.2.250.0060.01215.07
7.2.240.0060.01514.54
7.2.230.0100.00615.11
7.2.220.0030.00714.78
7.2.210.0090.00614.54
7.2.200.0070.01015.04
7.2.190.0000.01214.80
7.2.180.0070.01114.68
7.2.170.0000.01414.95
7.2.130.0070.00116.84
7.2.120.0000.01116.57
7.2.110.0070.00416.60
7.2.100.0060.00416.66
7.2.90.0030.00716.88
7.2.80.0020.01016.75
7.2.70.0030.00616.88
7.2.60.0070.00616.69
7.2.50.0080.00316.74
7.2.40.0030.00916.71
7.2.30.0030.00716.89
7.2.20.0060.00716.78
7.2.10.0050.00516.58
7.2.00.0030.01117.52
7.1.330.0090.00615.69
7.1.320.0000.01215.88
7.1.310.0130.00315.98
7.1.300.0040.00815.58
7.1.290.0000.00915.70
7.1.280.0070.01115.81
7.1.270.0070.00715.53
7.1.260.0030.01015.85
7.1.250.0050.00515.77
7.1.200.0080.00315.66
7.1.100.0040.00817.97
7.1.70.0000.00817.27
7.1.60.0100.01419.17
7.1.50.0130.01334.79
7.1.00.0070.07322.52
7.0.200.0000.00816.73
7.0.60.0130.06719.92
7.0.50.0070.03717.66
7.0.40.0000.09020.09
7.0.30.0230.04720.09
7.0.20.0330.05020.13
7.0.10.0100.07320.03
7.0.00.0070.08720.18
5.6.280.0000.03720.90
5.6.210.0100.08320.50
5.6.200.0100.07718.12
5.6.190.0030.09020.45
5.6.180.0270.08020.57
5.6.170.0270.07320.71
5.6.160.0030.05720.54
5.6.150.0070.07718.12
5.6.140.0030.04318.18
5.6.130.0030.08318.20
5.6.120.0000.06320.89
5.6.110.0000.07721.08
5.6.100.0070.06321.03
5.6.90.0170.07720.99
5.6.80.0100.03720.35
5.5.350.0130.08020.44
5.5.340.0070.04717.97
5.5.330.0130.04720.11
5.5.320.0200.04320.28
5.5.310.0200.05320.26
5.5.300.0030.06717.88
5.5.290.0130.05317.88
5.5.280.0030.05020.84
5.5.270.0100.05320.86
5.5.260.0070.04020.93
5.5.250.0030.08720.68
5.5.240.0300.06720.27
5.4.450.0800.05719.50
5.4.440.0970.06019.41
5.4.430.0770.05319.29
5.4.420.0770.08019.61
5.4.410.0800.06019.36
5.4.400.0830.05719.13
5.4.390.0730.06018.77
5.4.380.0970.06319.31
5.4.370.0430.05718.78
5.4.360.0100.05719.09
5.4.350.0500.05319.31
5.4.340.0600.05719.16
5.4.320.0730.06019.30
5.4.310.0800.06719.28
5.4.300.0330.06019.21
5.4.290.0270.05719.22
5.4.280.0270.06019.22
5.4.270.0630.05019.12
5.4.260.0630.04319.17
5.4.250.0130.05019.30
5.4.240.0270.05718.79
5.4.230.0400.06319.13
5.4.220.0730.04718.81
5.4.210.0730.04719.15
5.4.200.0730.06019.19
5.4.190.0770.06719.30
5.4.180.0800.05018.98
5.4.170.0770.07018.94
5.4.160.0670.05718.75
5.4.150.0900.05318.97
5.4.140.0130.05016.51
5.4.130.0670.05316.32
5.4.120.0800.04716.32
5.4.110.0500.06016.07
5.4.100.0670.05316.47
5.4.90.0570.05716.07
5.4.80.0470.05316.48
5.4.70.0200.05716.39
5.4.60.0270.05716.39
5.4.50.0070.07016.31
5.4.40.0100.04716.20
5.4.30.0070.03316.31
5.4.20.0030.07016.38

preferences:
60.03 ms | 401 KiB | 5 Q