3v4l.org

run code in 300+ PHP versions simultaneously
<?php // Everything you enter here will be executed by our servers. Try it! $q1 = 1; $q2 = 2; $q3 = 3; $q4 = 4; $q5 = 5; echo "${q1}"; //outputs 1 for($i=1; $i<=5; $i++) { $varname = "q{$i}"; echo "$$varname"; //how to make $i work here? }

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)
8.3.40.0090.00618.47
8.3.30.0030.01018.59
8.3.20.0080.00018.69
8.3.10.0000.00918.80
8.3.00.0040.00419.38
8.2.170.0100.01022.96
8.2.160.0120.00418.81
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0040.00419.85
8.2.110.0060.00319.39
8.2.100.0090.00318.02
8.2.90.0000.00817.84
8.2.80.0030.00518.04
8.2.70.0000.00817.80
8.2.60.0040.00418.22
8.2.50.0000.00918.10
8.2.40.0030.00619.17
8.2.30.0000.00917.70
8.2.20.0030.00617.56
8.2.10.0000.00917.61
8.2.00.0000.00717.66
8.1.270.0060.00323.99
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0080.00022.23
8.1.230.0120.00022.73
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0040.00417.35
8.1.190.0060.00317.10
8.1.180.0060.00318.10
8.1.170.0030.00618.50
8.1.160.0040.00418.62
8.1.150.0040.00418.45
8.1.140.0050.00217.26
8.1.130.0060.00319.17
8.1.120.0050.00217.45
8.1.110.0060.00317.39
8.1.100.0050.00317.29
8.1.90.0040.00417.42
8.1.80.0070.00017.46
8.1.70.0000.00817.43
8.1.60.0030.00617.48
8.1.50.0040.00417.38
8.1.40.0060.00317.56
8.1.30.0100.00017.64
8.1.20.0000.00817.69
8.1.10.0040.00417.57
8.1.00.0000.00817.35
8.0.300.0040.00421.86
8.0.290.0000.00716.58
8.0.280.0000.00718.36
8.0.270.0030.00517.18
8.0.260.0030.00316.81
8.0.250.0030.00516.96
8.0.240.0030.00616.98
8.0.230.0030.00616.99
8.0.220.0100.00016.87
8.0.210.0000.00716.88
8.0.200.0030.00316.95
8.0.190.0000.00816.86
8.0.180.0080.00316.96
8.0.170.0030.00716.92
8.0.160.0070.00016.92
8.0.150.0000.00816.85
8.0.140.0000.00916.75
8.0.130.0050.00013.27
8.0.120.0090.00016.77
8.0.110.0050.00316.71
8.0.100.0040.00416.98
8.0.90.0040.00417.00
8.0.80.0120.00316.85
8.0.70.0050.00316.79
8.0.60.0050.00216.71
8.0.50.0030.00516.70
8.0.30.0030.01417.30
8.0.20.0070.01517.03
8.0.10.0040.00316.91
8.0.00.0130.00716.58
7.4.330.0020.00212.97
7.4.320.0000.00616.52
7.4.300.0000.00716.61
7.4.290.0030.00316.54
7.4.280.0080.00016.34
7.4.270.0000.00716.49
7.4.260.0060.00013.21
7.4.250.0080.00016.41
7.4.240.0030.00316.43
7.4.230.0030.00316.68
7.4.220.0100.00716.45
7.4.210.0040.01116.49
7.4.200.0070.00016.52
7.4.190.0000.00716.77
7.4.160.0110.00416.44
7.4.150.0090.00916.36
7.4.140.0090.00917.86
7.4.130.0070.01116.46
7.4.120.0170.00616.50
7.4.110.0090.00916.30
7.4.100.0100.00716.46
7.4.90.0100.01316.54
7.4.80.0060.01219.39
7.4.70.0110.00516.42
7.4.60.0070.01416.53
7.4.50.0000.00816.49
7.4.40.0100.00616.46
7.4.30.0160.00616.61
7.4.00.0090.00915.05
7.3.330.0060.00013.05
7.3.320.0000.00613.06
7.3.310.0040.00416.29
7.3.300.0060.00016.27
7.3.290.0060.01016.31
7.3.280.0060.00916.19
7.3.270.0060.01216.13
7.3.260.0070.01116.30
7.3.240.0100.00716.38
7.3.230.0080.00816.29
7.3.210.0140.00716.35
7.3.200.0090.00916.45
7.3.190.0130.00316.43
7.3.180.0030.01616.24
7.3.170.0060.00916.18
7.3.160.0110.00516.55
7.3.120.0100.00714.91
7.3.10.0080.00716.68
7.3.00.0080.00716.47
7.2.330.0070.01116.79
7.2.320.0070.01416.35
7.2.310.0090.00916.74
7.2.300.0030.01316.62
7.2.290.0060.01216.53
7.2.130.0060.01016.91
7.2.120.0130.00316.99
7.2.110.0050.01016.73
7.2.100.0070.00616.72
7.2.90.0050.01016.89
7.2.80.0050.00916.92
7.2.70.0110.00416.96
7.2.60.0070.00716.94
7.2.50.0050.00916.91
7.2.40.0040.00716.82
7.2.30.0050.01116.91
7.2.20.0070.00516.89
7.2.10.0090.00516.65
7.2.00.0030.01117.47
7.1.250.0030.00715.65
7.1.200.0070.00315.83
7.1.100.0030.00918.05
7.1.70.0030.00916.93
7.1.60.0100.01419.21
7.1.50.0070.01716.80
7.1.00.0070.03022.36
7.0.200.0000.00816.73
7.0.140.0030.07322.10
7.0.120.0130.06021.96
7.0.60.0230.03019.99
7.0.50.0030.06717.79
7.0.40.0130.08019.90
7.0.30.0230.08020.09
7.0.20.0200.04719.95
7.0.10.0070.05020.18
7.0.00.0070.06020.11
5.6.280.0000.07721.12
5.6.210.0030.06320.66
5.6.200.0100.03718.16
5.6.190.0070.05020.60
5.6.180.0400.06720.62
5.6.170.0200.04020.51
5.6.160.0030.09020.52
5.6.150.0070.05318.13
5.6.140.0100.07718.21
5.6.130.0070.08018.12
5.6.120.0070.03721.02
5.6.110.0000.04721.01
5.6.100.0100.08720.97
5.6.90.0100.08021.09
5.6.80.0100.08020.41
5.5.350.0030.08020.46
5.5.340.0070.05317.87
5.5.330.0130.07320.19
5.5.320.0200.07020.22
5.5.310.0330.07320.35
5.5.300.0070.07717.92
5.5.290.0070.06718.01
5.5.280.0100.08020.64
5.5.270.0170.07020.75
5.5.260.0200.07020.96
5.5.250.0230.06020.65
5.5.240.0230.05720.03
5.4.450.0230.04019.40
5.4.440.0130.05019.46
5.4.430.0200.03319.42
5.4.420.0300.06319.40
5.4.410.0230.06319.30
5.4.400.0300.06018.92
5.4.390.0170.04019.13
5.4.380.0130.05319.12
5.4.370.0200.06718.92
5.4.360.0330.03319.09
5.4.350.0300.06719.24
5.4.340.0230.04318.93
5.4.320.0230.07319.10
5.4.310.0270.06718.91
5.4.300.0170.04319.07
5.4.290.0130.04319.23
5.4.280.0270.04319.15
5.4.270.0200.03719.23
5.4.260.0270.04319.23
5.4.250.0170.03718.91
5.4.240.0170.04019.18
5.4.230.0200.03718.88
5.4.220.0270.06719.12
5.4.210.0200.06319.07
5.4.200.0200.03319.05
5.4.190.0200.03319.21
5.4.180.0230.07719.24
5.4.170.0230.04318.77
5.4.160.0200.03318.91
5.4.150.0200.03319.20
5.4.140.0200.07016.22
5.4.130.0300.06316.36
5.4.120.0200.03316.29
5.4.110.0130.03716.50
5.4.100.0230.05716.07
5.4.90.0270.05716.30
5.4.80.0270.03016.43
5.4.70.0130.04316.21
5.4.60.0170.05716.40
5.4.50.0200.07316.20
5.4.40.0100.05016.31
5.4.30.0170.05316.15
5.4.20.0230.07316.23
5.4.10.0230.07016.06
5.4.00.0330.06315.98
5.3.290.0230.05014.77
5.3.280.0370.05714.54
5.3.270.0270.07014.45
5.3.260.0270.04314.44
5.3.250.0230.07714.63
5.3.240.0330.06314.46
5.3.230.0200.04314.54
5.3.220.0230.04014.51
5.3.210.0300.06714.40
5.3.200.0300.06314.66
5.3.190.0370.06014.58
5.3.180.0270.04714.51
5.3.170.0270.03714.44
5.3.160.0270.06014.44
5.3.150.0230.08014.47
5.3.140.0170.04314.39
5.3.130.0270.06014.38
5.3.120.0230.05014.45
5.3.110.0300.04314.49
5.3.100.0200.05314.05
5.3.90.0170.04013.93
5.3.80.0300.06313.89
5.3.70.0230.03713.97
5.3.60.0400.05013.78
5.3.50.0230.04314.00
5.3.40.0200.06013.88
5.3.30.0170.03713.78
5.3.20.0130.04713.64
5.3.10.0430.03713.60
5.3.00.0300.04713.51
5.2.170.0230.03311.03
5.2.160.0200.03011.19
5.2.150.0170.05011.01
5.2.140.0170.03011.16
5.2.130.0200.03310.96
5.2.120.0130.03310.99
5.2.110.0230.05011.02
5.2.100.0230.02711.01
5.2.90.0230.05711.01
5.2.80.0200.04011.03
5.2.70.0230.03710.93
5.2.60.0200.03010.99
5.2.50.0200.03710.95
5.2.40.0200.02710.89
5.2.30.0230.05310.99
5.2.20.0230.02711.00
5.2.10.0230.02710.82
5.2.00.0170.05710.63
5.1.60.0230.0179.97
5.1.50.0170.0279.96
5.1.40.0200.0239.89
5.1.30.0130.02710.28
5.1.20.0130.03010.35
5.1.10.0200.05710.04
5.1.00.0170.03310.11
5.0.50.0100.0338.72
5.0.40.0130.0208.72
5.0.30.0130.0278.72
5.0.20.0170.0308.72
5.0.10.0130.0378.72
5.0.00.0130.0238.72
4.4.90.0070.0178.72
4.4.80.0130.0308.72
4.4.70.0070.0308.72
4.4.60.0030.0278.72
4.4.50.0030.0208.72
4.4.40.0070.0278.72
4.4.30.0130.0108.72
4.4.20.0030.0208.72
4.4.10.0070.0178.72
4.4.00.0230.0238.72
4.3.110.0070.0178.72
4.3.100.0130.0238.72
4.3.90.0030.0238.72
4.3.80.0070.0308.72
4.3.70.0100.0308.72
4.3.60.0030.0178.72
4.3.50.0030.0178.72
4.3.40.0100.0208.72
4.3.30.0030.0308.72
4.3.20.0000.0208.72
4.3.10.0000.0238.72
4.3.00.0030.0138.72

preferences:
56.47 ms | 400 KiB | 5 Q