3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var_b = "var_c"; $var_a = "var_b"; $var = "var_a"; echo $var."\n"; echo $$var."\n"; echo $$$var."\n";

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)
8.3.60.0090.00618.14
8.3.50.0100.00721.99
8.3.40.0100.01018.63
8.3.30.0110.00718.96
8.3.20.0060.00320.21
8.3.10.0040.00421.97
8.3.00.0000.00822.44
8.2.180.0070.01116.63
8.2.170.0150.00022.96
8.2.160.0100.01020.76
8.2.150.0040.01124.18
8.2.140.0040.00424.66
8.2.130.0150.00626.16
8.2.120.0060.01219.36
8.2.110.0040.00719.39
8.2.100.0080.00317.91
8.2.90.0040.00419.03
8.2.80.0050.00317.97
8.2.70.0030.00617.50
8.2.60.0040.00717.92
8.2.50.0050.00318.07
8.2.40.0070.00018.22
8.2.30.0000.00717.93
8.2.20.0070.00017.70
8.2.10.0030.00619.35
8.2.00.0090.00017.66
8.1.280.0130.01025.92
8.1.270.0040.01522.07
8.1.260.0110.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00622.08
8.1.230.0110.00019.05
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.22
8.1.190.0040.00417.39
8.1.180.0040.00418.60
8.1.170.0090.00018.34
8.1.160.0040.00423.68
8.1.150.0040.00418.63
8.1.140.0000.00717.39
8.1.130.0000.00717.77
8.1.120.0000.00717.43
8.1.110.0070.00017.43
8.1.100.0050.00217.41
8.1.90.0040.00417.36
8.1.80.0000.00717.48
8.1.70.0000.00817.40
8.1.60.0030.00617.50
8.1.50.0000.00817.55
8.1.40.0080.00017.48
8.1.30.0080.00017.58
8.1.20.0060.00317.52
8.1.10.0000.00817.49
8.1.00.0040.00417.31
8.0.300.0060.00318.78
8.0.290.0000.00717.04
8.0.280.0060.00018.37
8.0.270.0000.00817.32
8.0.260.0000.00716.73
8.0.250.0070.00016.84
8.0.240.0000.00816.83
8.0.230.0000.00716.95
8.0.220.0050.00316.85
8.0.210.0000.00716.88
8.0.200.0030.00316.97
8.0.190.0040.00416.95
8.0.180.0000.00716.80
8.0.170.0070.00016.86
8.0.160.0000.00716.83
8.0.150.0000.00716.89
8.0.140.0040.00416.83
8.0.130.0060.00013.30
8.0.120.0030.00516.84
8.0.110.0070.00016.89
8.0.100.0000.00716.79
8.0.90.0040.00416.82
8.0.80.0130.00316.94
8.0.70.0040.00416.88
8.0.60.0070.00016.72
8.0.50.0030.00516.90
8.0.30.0050.01517.11
8.0.20.0080.01217.40
8.0.10.0000.00716.91
8.0.00.0100.01016.84
7.4.330.0000.00615.00
7.4.320.0040.00416.59
7.4.300.0030.00316.51
7.4.290.0030.00316.44
7.4.280.0030.00316.60
7.4.270.0060.00016.50
7.4.260.0000.00816.54
7.4.250.0050.00216.54
7.4.240.0010.00616.48
7.4.230.0070.00016.33
7.4.220.0110.00716.49
7.4.210.0070.00916.61
7.4.200.0040.00416.33
7.4.190.0040.00416.68
7.4.160.0100.00516.50
7.4.150.0130.00717.40
7.4.140.0110.00717.86
7.4.130.0140.00316.54
7.4.120.0100.00716.37
7.4.110.0060.01116.44
7.4.100.0170.01016.50
7.4.90.0030.01416.57
7.4.80.0090.00919.39
7.4.70.0110.00616.50
7.4.60.0130.00316.38
7.4.50.0030.00316.65
7.4.40.0060.00922.77
7.4.30.0140.00316.42
7.4.00.0100.00315.15
7.3.330.0020.00213.07
7.3.320.0000.00513.15
7.3.310.0000.00716.25
7.3.300.0000.00716.22
7.3.290.0090.00916.37
7.3.280.0120.00316.27
7.3.270.0070.01017.40
7.3.260.0030.01416.65
7.3.250.0150.00516.41
7.3.240.0100.00716.41
7.3.230.0130.00716.52
7.3.210.0140.00316.52
7.3.200.0040.01719.39
7.3.190.0060.01516.32
7.3.180.0120.00416.39
7.3.170.0110.00416.61
7.3.160.0110.00516.50
7.3.120.0030.01014.85
7.2.330.0090.00916.73
7.2.320.0030.01316.59
7.2.310.0100.01116.71
7.2.300.0080.00816.37
7.2.290.0030.01316.68
7.2.60.0120.00616.72
7.2.50.0040.00816.93
7.1.200.0030.01015.79
7.1.70.0040.01117.23
7.1.60.0070.00416.94
7.1.50.0090.01316.76
7.1.00.0070.07322.40
7.0.200.0070.00316.73
7.0.140.0100.06722.21
7.0.60.0030.08319.86
7.0.50.0070.08317.81
7.0.40.0070.07720.23
7.0.30.0370.06720.18
7.0.20.0200.05020.19
7.0.10.0200.04020.00
7.0.00.0070.05720.33
5.6.280.0100.06720.90
5.6.210.0070.05020.54
5.6.200.0130.06318.09
5.6.190.0030.04020.43
5.6.180.3330.04320.67
5.6.170.0170.04320.50
5.6.160.0070.07020.38
5.6.150.0000.05318.14
5.6.140.0100.06318.09
5.6.130.0130.07018.18
5.6.120.0000.04320.98
5.6.110.0100.08020.97
5.6.100.0070.08721.10
5.6.90.0070.08321.09
5.6.80.0000.04020.50
5.6.70.0270.08020.49
5.5.350.0030.08020.43
5.5.340.0130.07318.01
5.5.330.0070.05720.41
5.5.320.0170.04020.49
5.5.310.0200.06320.29
5.5.300.0070.07017.98
5.5.290.0100.07317.96
5.5.280.0030.07720.97
5.5.270.0100.07720.67
5.5.260.0070.04320.85
5.5.250.0100.07320.45
5.5.240.0070.04720.18
5.4.450.0770.05319.49
5.4.440.0870.06019.34
5.4.430.0030.06019.45
5.4.420.0200.06319.30
5.4.410.0070.05719.37
5.4.400.0830.00018.66
5.4.390.0930.00018.59
5.4.380.0230.05018.74
5.4.370.0200.06318.71
5.4.360.0330.05318.74
5.4.350.0300.05718.64
5.4.340.0370.04718.68
5.4.320.0100.04112.45
5.4.310.0090.04912.45
5.4.300.0040.04312.45
5.4.290.0060.04012.45
5.4.280.0070.03412.35
5.4.270.0100.05018.94
5.4.260.0170.06018.79
5.4.250.0170.07018.91
5.4.240.0130.04718.70
5.4.230.0170.07018.70
5.4.220.0200.06018.92
5.4.210.0000.08318.71
5.4.200.0130.05018.80
5.4.190.0030.08318.87
5.4.180.0030.06018.89
5.4.170.0100.07318.71
5.4.160.0070.07318.78
5.4.150.0130.05018.76
5.4.140.0100.05316.23
5.4.130.0200.05716.22
5.4.120.0100.07716.20
5.4.110.0170.04016.45
5.4.100.0100.04716.42
5.4.90.0200.03716.26
5.4.80.0130.04716.50
5.4.70.0100.05016.37
5.4.60.0130.06716.39
5.4.50.0100.07016.31
5.4.40.0070.06016.51
5.4.30.0030.05316.39
5.4.20.0100.04716.46
5.4.10.0130.04316.32
5.4.00.0030.05715.78
5.3.290.0060.03812.80
5.3.280.0100.07014.48
5.3.270.0130.07314.66
5.3.260.0130.07314.46
5.3.250.0070.06314.30
5.3.240.0170.05014.61
5.3.230.0130.04314.74
5.3.220.0030.06714.45
5.3.210.0070.05014.40
5.3.200.0200.04314.57
5.3.190.0170.04314.57
5.3.180.0030.05314.57
5.3.170.0070.07314.57
5.3.160.0030.08314.70
5.3.150.0070.05014.47
5.3.140.0170.05314.55
5.3.130.0170.06714.59
5.3.120.0230.04014.70
5.3.110.0070.05314.54
5.3.100.0070.05014.18
5.3.90.0070.05313.71
5.3.80.0030.05313.93
5.3.70.0100.05013.87
5.3.60.0130.05014.01
5.3.50.0130.06013.94
5.3.40.0030.06313.72
5.3.30.0030.06713.91
5.3.20.0070.07013.73
5.3.10.0070.06013.56
5.3.00.0030.05313.34
5.2.170.0100.04010.90
5.2.160.0170.03711.14
5.2.150.0070.05711.25
5.2.140.0130.04711.13
5.2.130.0030.06011.11
5.2.120.0130.05011.00
5.2.110.0130.05311.10
5.2.100.0130.03311.25
5.2.90.0030.04711.11
5.2.80.0130.04710.85
5.2.70.0070.05011.10
5.2.60.0130.05010.81
5.2.50.0000.06711.04
5.2.40.0030.05311.11
5.2.30.0070.04311.00
5.2.20.0100.04010.88
5.2.10.0000.04710.93
5.2.00.0100.04010.93
5.1.60.0030.04310.02
5.1.50.0130.0339.84
5.1.40.0100.03710.12
5.1.30.0130.02710.39
5.1.20.0100.03010.42
5.1.10.0070.03310.01
5.1.00.0130.04310.12
5.0.50.0030.0278.73
5.0.40.0030.0278.63
5.0.30.0030.0408.15
5.0.20.0070.0338.38
5.0.10.0030.0278.36
5.0.00.0070.0478.20
4.4.90.0000.0237.78
4.4.80.0000.0237.78
4.4.70.0030.0307.78
4.4.60.0030.0307.78
4.4.50.0070.0177.78
4.4.40.0030.0377.78
4.4.30.0000.0237.78
4.4.20.0030.0207.78
4.4.10.0000.0237.78
4.4.00.0030.0307.78
4.3.110.0000.0237.78
4.3.100.0030.0207.78
4.3.90.0030.0277.78
4.3.80.0000.0477.78
4.3.70.0070.0177.78
4.3.60.0070.0177.78
4.3.50.0000.0237.78
4.3.40.0000.0337.78
4.3.30.0070.0177.78
4.3.20.0030.0237.78
4.3.10.0030.0207.78
4.3.00.0000.0276.98

preferences:
44.23 ms | 401 KiB | 5 Q