3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b = &$a; $c = $b; $c = 2; $b = 20; echo $a," ",$b," ",$c;

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)
8.4.140.0110.01017.51
8.4.130.0080.01217.60
8.4.120.0050.00320.30
8.4.110.0050.00324.20
8.4.100.0100.00317.91
8.4.90.0120.00817.90
8.4.80.0090.00617.77
8.4.70.0150.00517.59
8.4.60.0110.01018.43
8.4.50.0160.00517.57
8.4.40.0130.00619.25
8.4.30.0050.00318.48
8.4.20.0160.00018.57
8.4.10.0030.00617.47
8.3.270.0050.01416.63
8.3.260.0130.00616.52
8.3.250.0110.00718.69
8.3.240.0120.00716.49
8.3.230.0110.00816.54
8.3.220.0090.00916.57
8.3.210.0060.00816.64
8.3.200.0050.00316.48
8.3.190.0060.00416.99
8.3.180.0060.00516.63
8.3.170.0100.01016.34
8.3.160.0060.01216.44
8.3.150.0090.00917.30
8.3.140.0070.01120.63
8.3.130.0040.01118.05
8.3.120.0150.00020.57
8.3.110.0100.00720.94
8.3.100.0050.00316.66
8.3.90.0030.00626.77
8.3.80.0030.00616.63
8.3.70.0120.00316.63
8.3.60.0110.00718.31
8.3.50.0110.00317.26
8.3.40.0110.00418.50
8.3.30.0110.00318.59
8.3.20.0000.00721.74
8.3.10.0050.00323.65
8.3.00.0090.00022.52
8.2.290.0100.00820.55
8.2.280.0050.00420.01
8.2.270.0140.00318.50
8.2.260.0040.01116.66
8.2.250.0040.00416.66
8.2.240.0080.00017.14
8.2.230.0060.00322.58
8.2.220.0080.00037.54
8.2.210.0080.00026.77
8.2.200.0040.00416.38
8.2.190.0060.00918.16
8.2.180.0110.00725.92
8.2.170.0110.00418.79
8.2.160.0090.00622.96
8.2.150.0080.00025.66
8.2.140.0150.00024.66
8.2.130.0050.00326.16
8.2.120.0030.00520.02
8.2.110.0000.00821.98
8.2.100.0110.00017.77
8.2.90.0040.00417.75
8.2.80.0050.00318.05
8.2.70.0030.00617.68
8.2.60.0000.01018.16
8.2.50.0030.00618.10
8.2.40.0040.00419.34
8.2.30.0070.00019.32
8.2.20.0000.00717.93
8.2.10.0000.00719.23
8.2.00.0040.00419.21
8.1.330.0120.01116.90
8.1.320.0110.00916.09
8.1.310.0000.00818.63
8.1.300.0060.00317.68
8.1.290.0060.00330.84
8.1.280.0070.01425.92
8.1.270.0080.00021.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0080.00023.79
8.1.230.0000.01119.22
8.1.220.0030.00517.79
8.1.210.0080.00018.77
8.1.200.0080.00017.23
8.1.190.0040.00417.23
8.1.180.0030.00518.10
8.1.170.0040.00418.53
8.1.160.0030.00718.75
8.1.150.0030.00618.81
8.1.140.0030.00320.95
8.1.130.0030.00320.05
8.1.120.0070.00017.43
8.1.110.0050.00217.38
8.1.100.0070.00017.27
8.1.90.0070.00017.32
8.1.80.0050.00217.32
8.1.70.0070.00017.30
8.1.60.0040.00417.52
8.1.50.0050.00217.37
8.1.40.0050.00517.49
8.1.30.0040.00417.66
8.1.20.0040.00817.63
8.1.10.0050.00217.48
8.1.00.0020.00517.45
8.0.300.0000.00719.82
8.0.290.0110.00016.75
8.0.280.0000.00718.42
8.0.270.0040.00416.68
8.0.260.0000.00620.18
8.0.250.0030.00716.86
8.0.240.0000.00716.84
8.0.230.0030.00316.77
8.0.220.0070.00016.85
8.0.210.0030.00316.80
8.0.200.0040.00416.89
8.0.190.0000.00716.91
8.0.180.0060.00316.92
8.0.170.0000.00816.84
8.0.160.0000.00716.86
8.0.150.0000.00716.76
8.0.140.0030.00316.68
8.0.130.0000.00613.29
8.0.120.0040.00416.83
8.0.110.0000.00716.68
8.0.100.0030.00316.80
8.0.90.0040.00416.85
8.0.80.0120.00316.85
8.0.70.0040.00416.92
8.0.60.0070.00016.68
8.0.50.0000.00716.75
8.0.30.0080.00816.86
8.0.20.0110.00716.98
8.0.10.0030.00616.85
8.0.00.0110.00716.61
7.4.330.0000.00415.55
7.4.320.0040.00416.35
7.4.300.0040.00416.51
7.4.290.0030.00316.52
7.4.280.0080.00016.41
7.4.270.0030.00316.45
7.4.260.0030.00313.21
7.4.250.0070.00016.41
7.4.240.0020.00616.45
7.4.230.0030.00316.32
7.4.220.0070.00016.42
7.4.210.0090.00716.44
7.4.200.0080.00016.34
7.4.130.0040.01516.27
7.4.120.0130.00516.41
7.4.110.0060.01116.40
7.4.100.0060.01116.31
7.4.90.0060.01116.45
7.4.80.0060.01219.39
7.4.70.0150.00716.52
7.4.60.0170.00016.45
7.4.50.0100.00716.44
7.4.40.0170.00016.50
7.4.00.0070.01014.58
7.3.330.0040.00416.07
7.3.320.0000.00513.16
7.3.310.0030.00316.12
7.3.300.0000.00616.10
7.3.290.0030.00316.09
7.3.280.0140.00016.27
7.3.260.0100.00716.38
7.3.240.0100.01116.41
7.3.230.0150.00616.43
7.3.210.0110.00816.46
7.3.200.0100.00616.41
7.3.190.0060.00916.45
7.3.180.0130.01016.27
7.3.170.0060.01016.43
7.3.160.0160.00016.20
7.3.90.0090.00814.69
7.3.80.0030.01014.86
7.3.70.0120.00714.67
7.3.60.0110.00514.70
7.3.50.0120.00214.78
7.3.40.0050.00814.85
7.3.30.0030.01214.65
7.3.20.0270.00915.72
7.3.10.0060.00815.59
7.3.00.0120.00515.65
7.2.330.0100.00716.60
7.2.320.0100.00716.45
7.2.310.0070.01016.57
7.2.300.0100.00716.68
7.2.290.0090.00616.54
7.2.220.0120.00515.02
7.2.210.0100.00714.84
7.2.200.0140.00614.83
7.2.190.0070.00914.84
7.2.180.0060.00914.77
7.2.170.0050.00914.93
7.2.160.0110.00714.94
7.2.150.0140.00215.88
7.2.140.0040.01215.84
7.2.130.0110.00815.86
7.2.120.0040.01714.89
7.2.110.0110.00914.71
7.2.100.0110.01114.90
7.2.90.0070.01314.87
7.2.80.0100.01014.95
7.2.70.0100.01114.99
7.2.60.0080.01114.87
7.2.50.0340.00614.94
7.2.40.0100.00514.94
7.2.30.0050.01114.90
7.2.20.0100.00515.03
7.2.10.0080.00815.06
7.2.00.0070.00814.95
7.1.320.0060.01014.79
7.1.310.0070.01014.01
7.1.300.0100.00613.97
7.1.290.0090.00613.72
7.1.280.0130.00314.83
7.1.270.0030.01014.77
7.1.260.0040.01114.82
7.1.250.0140.00314.83

preferences:
31.3 ms | 403 KiB | 5 Q