3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = 'cat'; $bar = & $foo; // $bar is now 'cat' $foo = 'dog'; // $bar is now 'dog' var_dump($bar);

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)
8.3.60.0150.00618.18
8.3.50.0140.00018.22
8.3.40.0040.01118.60
8.3.30.0120.00318.59
8.3.20.0000.00720.04
8.3.10.0040.00420.90
8.3.00.0070.00020.96
8.2.180.0120.00916.63
8.2.170.0100.00322.96
8.2.160.0130.00320.25
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0030.00717.96
8.2.120.0070.00026.35
8.2.110.0060.00322.21
8.2.100.0040.00817.78
8.2.90.0030.00519.16
8.2.80.0080.00017.97
8.2.70.0000.00817.38
8.2.60.0000.00717.93
8.2.50.0040.00418.10
8.2.40.0050.00322.18
8.2.30.0080.00019.22
8.2.20.0020.00517.98
8.2.10.0070.00018.06
8.2.00.0000.00717.92
8.1.280.0180.00025.92
8.1.270.0050.00222.19
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00323.96
8.1.230.0060.00622.16
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0080.00017.22
8.1.190.0030.00517.13
8.1.180.0030.00718.10
8.1.170.0000.00820.29
8.1.160.0040.00418.87
8.1.150.0030.00318.85
8.1.140.0070.00019.50
8.1.130.0000.00718.82
8.1.120.0040.00417.32
8.1.110.0050.00517.36
8.1.100.0030.00517.31
8.1.90.0000.00717.30
8.1.80.0040.00417.44
8.1.70.0030.00317.29
8.1.60.0050.00217.53
8.1.50.0040.00817.41
8.1.40.0070.00017.34
8.1.30.0000.00817.59
8.1.20.0040.00417.68
8.1.10.0000.00717.33
8.1.00.0000.00817.36
8.0.300.0080.00018.77
8.0.290.0040.00416.63
8.0.280.0000.00718.30
8.0.270.0030.00317.18
8.0.260.0030.00320.52
8.0.250.0040.00416.77
8.0.240.0070.00016.71
8.0.230.0000.00616.86
8.0.220.0030.00316.82
8.0.210.0000.00816.81
8.0.200.0080.00016.74
8.0.190.0020.00516.72
8.0.180.0000.00716.87
8.0.170.0000.00716.90
8.0.160.0030.00616.79
8.0.150.0030.00516.85
8.0.140.0070.00016.68
8.0.130.0000.00613.29
8.0.120.0040.00416.71
8.0.110.0000.00716.92
8.0.100.0040.00416.77
8.0.90.0060.00316.77
8.0.80.0030.01316.86
8.0.70.0050.00316.93
8.0.60.0050.00316.64
8.0.50.0070.00016.86
8.0.30.0120.00816.92
8.0.20.0090.01017.40
8.0.10.0000.00716.96
8.0.00.0100.00716.63
7.4.330.0050.00015.55
7.4.320.0040.00416.43
7.4.300.0060.00016.48
7.4.290.0000.00816.43
7.4.280.0000.00716.52
7.4.270.0040.00416.44
7.4.260.0000.00816.50
7.4.250.0070.00016.42
7.4.240.0040.00416.35
7.4.230.0030.00316.60
7.4.220.0090.00916.38
7.4.210.0080.00716.45
7.4.200.0000.00716.51
7.4.160.0080.00816.45
7.4.150.0030.01617.40
7.4.140.0130.00617.86
7.4.130.0100.00716.27
7.4.120.0140.00516.38
7.4.110.0090.00916.28
7.4.100.0090.00916.25
7.4.90.0110.00716.24
7.4.80.0100.00719.39
7.4.70.0130.00916.40
7.4.60.0190.00316.26
7.4.50.0070.01016.34
7.4.40.0030.01516.39
7.4.30.0060.01116.59
7.4.00.0040.01214.90
7.3.330.0060.00012.96
7.3.320.0000.00612.88
7.3.310.0000.00716.06
7.3.300.0000.00716.14
7.3.290.0040.00416.11
7.3.280.0090.00816.14
7.3.270.0030.01517.40
7.3.260.0120.00816.20
7.3.250.0080.01016.17
7.3.240.0100.00716.31
7.3.230.0070.01016.21
7.3.210.0150.00616.31
7.3.200.0080.01116.03
7.3.190.0030.01316.34
7.3.180.0150.00016.41
7.3.170.0100.01016.45
7.3.160.0060.01016.35
7.3.10.0070.01016.56
7.3.00.0030.00516.56
7.2.330.0080.01116.41
7.2.320.0060.01016.34
7.2.310.0080.01116.59
7.2.300.0080.00816.13
7.2.290.0040.01316.41
7.2.130.0000.01116.86
7.2.120.0090.00316.83
7.2.110.0100.00716.81
7.2.100.0030.01216.60
7.2.90.0040.00716.68
7.2.80.0060.00916.58
7.2.70.0070.00716.60
7.2.60.0050.00816.69
7.2.50.0000.01116.76
7.2.40.0040.01116.63
7.2.30.0040.01216.65
7.2.20.0070.01016.83
7.2.10.0070.00716.70
7.2.00.0030.00716.74
7.1.250.0030.00715.72
7.1.200.0040.00715.84
7.1.70.0090.00917.17
7.1.60.0270.01834.88
7.1.50.0320.01134.91
7.1.40.0370.00834.27
7.1.30.0250.01934.36
7.1.20.0220.01334.58
7.1.10.0080.00816.50
7.1.00.0030.01316.70
7.0.200.0140.00416.64
7.0.190.0090.01316.69
7.0.180.0120.00916.12
7.0.170.0110.00816.34
7.0.160.0110.00616.05
7.0.150.0040.01216.13
7.0.140.0110.00716.51
7.0.130.0030.01216.57
7.0.120.0120.00916.53
7.0.110.0090.00616.25
7.0.100.0120.00416.42
7.0.90.0120.00616.33
7.0.80.0070.01116.41
7.0.70.0040.01116.22
7.0.60.0120.00816.02
7.0.50.0100.01016.41
7.0.40.0030.01616.38
7.0.30.0070.01116.51
7.0.20.0120.00416.34
7.0.10.0030.01316.33
7.0.00.0030.01416.30

preferences:
54.86 ms | 401 KiB | 5 Q