3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "a string"; echo "string" + $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)
8.3.60.0090.00618.56
8.3.50.0160.00421.09
8.3.40.0090.00618.63
8.3.30.0060.00918.71
8.3.20.0040.00418.79
8.3.10.0000.00821.48
8.3.00.0120.00320.90
8.2.180.0100.01018.32
8.2.170.0090.00622.96
8.2.160.0110.00319.08
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00820.91
8.2.120.0000.00826.35
8.2.110.0000.00922.15
8.2.100.0090.00317.50
8.2.90.0040.00419.09
8.2.80.0040.00417.97
8.2.70.0000.01017.50
8.2.60.0030.00617.92
8.2.50.0040.00418.10
8.2.40.0060.00322.28
8.2.30.0030.00320.54
8.2.20.0000.00817.55
8.2.10.0080.00018.05
8.2.00.0000.00818.12
8.1.280.0110.00725.92
8.1.270.0040.00423.91
8.1.260.0030.00528.09
8.1.250.0000.00728.09
8.1.240.0060.00322.46
8.1.230.0050.00517.42
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0060.00317.13
8.1.190.0030.00517.00
8.1.180.0000.00818.10
8.1.170.0040.00418.50
8.1.160.0070.00019.05
8.1.150.0080.00018.72
8.1.140.0040.00419.41
8.1.130.0030.00317.57
8.1.120.0030.00417.33
8.1.110.0040.00717.30
8.1.100.0070.00017.36
8.1.90.0040.00317.35
8.1.80.0000.00817.43
8.1.70.0000.00717.23
8.1.60.0070.00017.39
8.1.50.0040.00417.51
8.1.40.0000.00817.48
8.1.30.0030.00617.59
8.1.20.0000.00717.55
8.1.10.0040.00417.39
8.1.00.0070.00017.39
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00318.37
8.0.270.0050.00517.18
8.0.260.0030.00317.19
8.0.250.0070.00016.88
8.0.240.0040.00417.01
8.0.230.0090.00016.87
8.0.220.0070.00316.76
8.0.210.0070.00016.77
8.0.200.0000.00616.84
8.0.190.0040.00416.87
8.0.180.0040.00416.89
8.0.170.0040.00416.89
8.0.160.0000.00716.85
8.0.150.0040.00416.85
8.0.140.0000.00716.87
8.0.130.0030.00313.23
8.0.120.0040.00416.79
8.0.110.0000.00716.95
8.0.100.0080.00016.82
8.0.90.0070.00016.95
8.0.80.0120.00316.84
8.0.70.0040.00416.82
8.0.60.0030.00316.75
8.0.50.0000.00816.79
8.0.30.0120.00617.00
8.0.20.0170.00717.40
8.0.10.0030.00517.04
8.0.00.0090.00916.68
7.4.330.0000.00415.08
7.4.320.0000.00616.41
7.4.300.0030.00316.34
7.4.290.0100.00016.51
7.4.280.0080.00016.43
7.4.270.0030.00316.45
7.4.260.0040.00416.27
7.4.250.0040.00416.39
7.4.240.0030.00516.54
7.4.230.0040.00416.53
7.4.220.0080.00816.46
7.4.210.0030.01016.44
7.4.200.0000.00716.62
7.4.160.0100.00516.50
7.4.150.0160.00817.40
7.4.140.0120.00517.86
7.4.130.0070.01216.46
7.4.120.0070.01116.44
7.4.110.0030.01316.28
7.4.100.0060.00916.63
7.4.90.0060.01616.64
7.4.80.0000.02319.39
7.4.70.0040.01316.28
7.4.60.0030.01216.45
7.4.50.0030.01016.51
7.4.40.0060.01216.45
7.4.30.0150.00816.38
7.4.00.0090.00615.05
7.3.330.0000.00513.00
7.3.320.0000.00513.15
7.3.310.0030.00316.18
7.3.300.0040.00216.21
7.3.290.0060.01116.29
7.3.280.0100.00716.20
7.3.270.0140.00317.40
7.3.260.0110.00816.53
7.3.250.0110.00816.25
7.3.240.0130.00616.43
7.3.230.0100.00716.51
7.3.210.0130.00616.22
7.3.200.0120.00916.29
7.3.190.0100.00516.29
7.3.180.0040.01116.41
7.3.170.0090.00616.37
7.3.160.0060.01016.21
7.2.330.0140.00416.60
7.2.320.0070.01016.29
7.2.310.0090.00916.68
7.2.300.0130.00316.61
7.2.290.0070.01316.38
7.2.60.0060.01016.67
7.2.00.0000.01219.36
7.1.200.0000.01215.55
7.1.100.0000.01318.04
7.1.70.0060.00316.98
7.1.60.0110.01420.41
7.1.50.0040.01816.91
7.1.00.0070.07322.37
7.0.200.0500.00714.51
7.0.60.0070.07321.69
7.0.50.0030.07017.87
7.0.40.0230.07720.02
7.0.30.0170.06720.27
7.0.20.0200.06020.07
7.0.10.0130.07020.30
7.0.00.0170.08720.18
5.6.280.0070.07020.88
5.6.210.0030.04320.50
5.6.200.0070.08318.08
5.6.190.0130.06720.39
5.6.180.0170.06020.41
5.6.170.0300.04320.42
5.6.160.0300.07320.46
5.6.150.0170.06020.33
5.6.140.0300.07020.41
5.6.130.0170.05720.35
5.6.120.0230.06020.33
5.6.110.0130.05320.44
5.6.100.0230.05320.43
5.6.90.0300.06020.40
5.6.80.0330.05319.68
5.6.70.0330.05319.62
5.6.60.0170.07319.79
5.6.50.0400.06719.68
5.6.40.0400.05319.69
5.6.30.0330.06019.69
5.6.20.0200.06019.77
5.6.10.0130.05319.65
5.6.00.0070.05719.69
5.5.350.0270.04320.42
5.5.340.0100.05018.03
5.5.330.0170.06020.47
5.5.320.0270.04720.34
5.5.310.0170.05320.34
5.5.300.0130.06320.07
5.5.290.0230.05320.04
5.5.280.0100.06320.12
5.5.270.0070.07320.10
5.5.260.0370.06020.12
5.5.250.0300.06019.95
5.5.240.0300.05719.62
5.5.230.0430.05019.48
5.5.220.0170.05719.70
5.5.210.0170.04719.46
5.5.200.0400.05019.61
5.5.190.0370.05319.29
5.5.180.0430.05019.45
5.5.160.0330.05019.59
5.5.150.0400.06319.58
5.5.140.0430.04719.45
5.5.130.0330.05019.49
5.5.120.0370.04719.47
5.5.110.0270.06019.44
5.5.100.0300.05319.58
5.5.90.0300.05719.18
5.5.80.0570.05019.25
5.5.70.0400.05319.38
5.5.60.0400.05319.29
5.5.50.0400.05319.34
5.5.40.0430.04319.45
5.5.30.0270.06719.25
5.5.20.0300.06019.41
5.5.10.0500.05019.40
5.5.00.0470.05019.44

preferences:
31.61 ms | 401 KiB | 5 Q