3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 1; $b = &$a; echo (++$a)+(++$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)
8.3.60.0060.00918.43
8.3.50.0110.00418.01
8.3.40.0150.00018.70
8.3.30.0120.00318.63
8.3.20.0030.00320.27
8.3.10.0030.00521.77
8.3.00.0050.00317.50
8.2.180.0140.00016.36
8.2.170.0070.01022.96
8.2.160.0170.00319.26
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0040.00422.08
8.2.120.0030.00326.35
8.2.110.0030.00621.94
8.2.100.0080.00317.72
8.2.90.0060.00317.84
8.2.80.0000.00818.04
8.2.70.0060.00317.63
8.2.60.0050.00317.92
8.2.50.0080.00018.10
8.2.40.0000.00820.54
8.2.30.0060.00319.38
8.2.20.0030.00517.79
8.2.10.0050.00218.11
8.2.00.0000.00717.90
8.1.280.0140.00725.92
8.1.270.0030.00523.90
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0100.00022.60
8.1.230.0000.01220.89
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0060.00317.11
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0030.00518.59
8.1.160.0060.00322.68
8.1.150.0040.00418.81
8.1.140.0000.00719.61
8.1.130.0040.00417.53
8.1.120.0070.00017.39
8.1.110.0060.00317.41
8.1.100.0080.00017.38
8.1.90.0040.00417.27
8.1.80.0070.00017.39
8.1.70.0000.00717.30
8.1.60.0070.00017.48
8.1.50.0080.00017.45
8.1.40.0050.00317.33
8.1.30.0000.00817.55
8.1.20.0000.00717.60
8.1.10.0120.00017.53
8.1.00.0080.00017.45
8.0.300.0040.00420.04
8.0.290.0040.00416.63
8.0.280.0000.00718.34
8.0.270.0000.00717.20
8.0.260.0000.00617.18
8.0.250.0050.00316.90
8.0.240.0060.00016.84
8.0.230.0040.00416.88
8.0.220.0030.00316.85
8.0.210.0070.00016.82
8.0.200.0000.00716.84
8.0.190.0030.00616.77
8.0.180.0040.00416.74
8.0.170.0040.00416.89
8.0.160.0070.00016.86
8.0.150.0030.00516.81
8.0.140.0000.00816.79
8.0.130.0070.00013.25
8.0.120.0040.00416.68
8.0.110.0040.00416.73
8.0.100.0000.00716.84
8.0.90.0030.00316.82
8.0.80.0040.01116.80
8.0.70.0040.00416.88
8.0.60.0040.00416.82
8.0.50.0050.00216.64
8.0.30.0130.00517.00
8.0.20.0130.01017.40
8.0.10.0030.00316.80
8.0.00.0120.00916.68
7.4.330.0020.00215.08
7.4.320.0060.00016.48
7.4.300.0000.00616.41
7.4.290.0000.00716.52
7.4.280.0000.00816.43
7.4.270.0070.00016.54
7.4.260.0030.00316.34
7.4.250.0000.00716.48
7.4.240.0030.00316.47
7.4.230.0020.00516.27
7.4.220.0070.01116.43
7.4.210.0090.00516.50
7.4.200.0040.00416.56
7.4.160.0130.00316.42
7.4.150.0150.00317.40
7.4.140.0080.01017.86
7.4.130.0070.00916.34
7.4.120.0060.01016.38
7.4.110.0100.01316.29
7.4.100.0100.00716.46
7.4.90.0080.00816.39
7.4.80.0120.00919.39
7.4.70.0090.01216.45
7.4.60.0070.01016.52
7.4.50.0040.00816.41
7.4.40.0070.01016.51
7.4.30.0090.00916.36
7.4.00.0000.01214.97
7.3.330.0030.00312.89
7.3.320.0000.00512.92
7.3.310.0030.00316.16
7.3.300.0030.00316.09
7.3.290.0000.00716.23
7.3.280.0080.00816.19
7.3.270.0060.01217.40
7.3.260.0100.00916.23
7.3.250.0060.01116.38
7.3.240.0090.01116.25
7.3.230.0060.01016.39
7.3.210.0070.01016.23
7.3.200.0160.00016.46
7.3.190.0060.01016.37
7.3.180.0100.00916.35
7.3.170.0160.00016.50
7.3.160.0160.00616.48
7.2.330.0060.01016.34
7.2.320.0090.00916.71
7.2.310.0140.00316.41
7.2.300.0070.01016.77
7.2.290.0030.02216.66
7.2.60.0030.01216.64
7.2.00.0030.01019.07
7.1.200.0090.00615.86
7.1.100.0040.00818.15
7.1.70.0060.01117.05
7.1.60.0090.00619.63
7.1.50.0170.00716.91
7.1.00.0030.07722.26
7.0.200.0520.01014.77
7.0.80.0370.05020.08
7.0.70.0270.06719.96
7.0.60.0270.08019.98
7.0.50.0930.04720.24
7.0.40.0500.06020.34
7.0.30.0400.06020.20
7.0.20.0300.06320.23
7.0.10.0400.05020.29
7.0.00.0370.06020.31
5.6.280.0000.07721.09
5.6.230.0230.04720.77
5.6.220.0070.06320.66
5.6.210.0130.05720.67
5.6.200.0030.07021.11
5.6.190.0200.06021.07
5.6.180.0200.05321.19
5.6.170.0130.07721.09
5.6.160.0130.05721.08
5.6.150.0130.06021.08
5.6.140.0070.06021.07
5.6.130.0130.06021.16
5.6.120.0170.05721.01
5.6.110.0130.07321.06
5.6.100.0130.06321.05
5.6.90.0170.05721.06
5.6.80.0130.05320.36
5.6.70.0030.06320.45
5.6.60.0130.05320.46
5.6.50.0070.06020.46
5.6.40.0200.05020.55
5.6.30.0170.05020.42
5.6.20.0030.09020.55
5.6.10.0270.04320.45
5.6.00.0100.05320.43
5.5.370.0200.04720.41
5.5.360.0130.05720.42
5.5.350.0070.06720.46
5.5.340.0130.06020.88
5.5.330.0170.05320.88
5.5.320.0070.06320.95
5.5.310.0100.07720.90
5.5.300.0170.05320.91
5.5.290.0100.06020.91
5.5.280.0070.08720.96
5.5.270.0130.08020.94
5.5.260.0100.06720.87
5.5.250.0100.06020.77
5.5.240.0070.06020.16
5.5.230.0100.05720.30
5.5.220.0130.05320.29
5.5.210.0030.06020.21
5.5.200.0170.05020.29
5.5.190.0130.06020.32
5.5.180.0170.07720.29
5.5.160.0030.06020.20
5.5.150.0170.06020.20
5.5.140.0070.05720.31
5.5.130.0170.04720.29
5.5.120.0200.05020.32
5.5.110.0100.05720.11
5.5.100.0030.06720.16
5.5.90.0170.05020.00
5.5.80.0100.06020.09
5.5.70.0100.06020.17
5.5.60.0200.06720.21
5.5.50.0030.07720.14
5.5.40.0100.05319.98
5.5.30.0130.05020.14
5.5.20.0100.05720.07
5.5.10.0100.05720.05
5.5.00.0170.05720.14

preferences:
62.56 ms | 401 KiB | 5 Q