3v4l.org

run code in 300+ PHP versions simultaneously
<?php function encode($message, $seed) { return base64_encode($message.$seed); } function decode($data, $seed) { return base64_decode($data); } var_dump($data = encode('hi this is a string','seed123'), decode($data, 'seed123'));

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
8.3.50.0140.00422.12
8.3.40.0100.00718.54
8.3.30.0100.00318.96
8.3.20.0000.00720.12
8.3.10.0030.00521.94
8.3.00.0050.00222.57
8.2.180.0110.00418.14
8.2.170.0100.00318.79
8.2.160.0070.01322.96
8.2.150.0070.00724.18
8.2.140.0100.00724.66
8.2.130.0040.00426.16
8.2.120.0080.00019.38
8.2.110.0030.00622.25
8.2.100.0070.00417.72
8.2.90.0040.00419.17
8.2.80.0000.00817.97
8.2.70.0060.00317.38
8.2.60.0040.00417.92
8.2.50.0030.00518.07
8.2.40.0000.00818.34
8.2.30.0030.00617.94
8.2.20.0040.00417.69
8.2.10.0030.00517.59
8.2.00.0000.00917.60
8.1.280.0170.00325.92
8.1.270.0000.00823.97
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00724.01
8.1.230.0090.00319.12
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0080.00317.23
8.1.190.0000.00817.29
8.1.180.0000.00818.10
8.1.170.0080.00018.65
8.1.160.0000.00721.89
8.1.150.0000.00718.59
8.1.140.0030.00517.34
8.1.130.0040.00417.81
8.1.120.0030.00317.43
8.1.110.0040.00417.27
8.1.100.0030.00317.28
8.1.90.0000.00717.42
8.1.80.0030.00317.39
8.1.70.0040.00417.20
8.1.60.0040.00417.63
8.1.50.0000.00817.43
8.1.40.0080.00317.55
8.1.30.0040.00417.53
8.1.20.0040.00417.60
8.1.10.0080.00017.51
8.1.00.0040.00417.32
8.0.300.0030.00518.77
8.0.290.0000.00717.30
8.0.280.0030.00318.43
8.0.270.0070.00017.23
8.0.260.0000.00816.85
8.0.250.0000.00716.93
8.0.240.0040.00416.83
8.0.230.0030.00316.87
8.0.220.0000.00816.87
8.0.210.0030.00316.77
8.0.200.0030.00316.83
8.0.190.0000.00816.88
8.0.180.0000.00716.88
8.0.170.0040.00416.88
8.0.160.0000.00716.82
8.0.150.0030.00316.89
8.0.140.0000.00716.77
8.0.130.0000.00513.27
8.0.120.0000.00716.75
8.0.110.0000.00716.84
8.0.100.0040.00416.94
8.0.90.0080.00016.84
8.0.80.0080.00616.86
8.0.70.0040.00416.91
8.0.60.0000.00716.73
8.0.50.0040.00416.77
8.0.30.0060.01616.96
8.0.20.0080.01017.40
8.0.10.0050.00216.75
8.0.00.0110.00716.96
7.4.330.0030.00315.03
7.4.320.0000.00616.47
7.4.300.0060.00016.52
7.4.290.0040.00416.51
7.4.280.0000.00816.38
7.4.270.0040.00416.64
7.4.260.0000.00716.46
7.4.250.0040.00416.54
7.4.240.0040.00316.55
7.4.230.0030.00316.69
7.4.220.0150.00316.45
7.4.210.0110.00316.61
7.4.200.0070.00016.66
7.4.190.0000.00816.72
7.4.160.0110.00516.61
7.4.150.0140.00417.40
7.4.140.0120.00617.86
7.4.130.0120.01116.46
7.4.120.0150.00316.34
7.4.110.0090.01016.49
7.4.100.0100.00716.38
7.4.90.0140.00316.50
7.4.80.0130.00319.39
7.4.70.0100.00616.46
7.4.60.0060.00916.48
7.4.50.0000.00416.22
7.4.40.0060.00922.77
7.4.30.0120.00616.63
7.4.00.0060.00914.68
7.3.330.0000.00613.20
7.3.320.0000.00613.05
7.3.310.0000.00716.34
7.3.300.0030.00316.17
7.3.290.0040.01516.25
7.3.280.0100.01016.29
7.3.270.0220.00017.40
7.3.260.0120.00616.30
7.3.250.0100.00716.37
7.3.240.0170.00016.36
7.3.230.0090.00916.55
7.3.210.0070.01016.33
7.3.200.0170.00319.39
7.3.190.0150.00416.41
7.3.180.0140.00616.64
7.3.170.0090.00616.38
7.3.160.0100.01016.31
7.3.120.0030.01314.81
7.2.330.0090.00916.61
7.2.320.0140.00316.47
7.2.310.0100.00716.42
7.2.300.0060.01516.50
7.2.290.0070.01516.59
7.2.00.0040.00819.16
7.1.100.0030.01017.90
7.1.70.0000.00717.16
7.1.60.0110.01419.82
7.1.50.0090.01316.64
7.1.00.0000.08022.44
7.0.200.0080.00416.59
7.0.140.0030.07322.23
7.0.100.0030.03319.97
7.0.90.0000.04319.88
7.0.80.0070.05019.90
7.0.70.0070.03319.93
7.0.60.0000.03719.91
7.0.50.0170.03720.30
7.0.40.0000.06020.08
7.0.30.0030.07020.12
7.0.20.0130.08020.09
7.0.10.0070.06720.04
7.0.00.0270.03020.04
5.6.280.0030.07320.89
5.6.250.0070.03020.78
5.6.240.0030.04720.67
5.6.230.0030.04020.69
5.6.220.0000.04320.67
5.6.210.0130.03720.65
5.6.200.0130.07321.03
5.6.190.0070.05721.02
5.6.180.0200.06720.99
5.6.170.0070.04021.12
5.6.160.0000.08321.05
5.6.150.0270.06020.96
5.6.140.0100.08321.04
5.6.130.0100.07021.00
5.6.120.0070.06021.03
5.6.110.0100.08321.10
5.6.100.0170.06721.09
5.6.90.0070.06321.07
5.6.80.0030.04320.45
5.6.70.0100.05720.34
5.6.60.0070.07320.38
5.6.50.0030.08320.39
5.6.40.0130.03720.38
5.6.30.0030.06020.42
5.6.20.0200.06020.31
5.6.10.0200.04720.38
5.6.00.0130.06720.40
5.5.380.0100.03020.36
5.5.370.0030.03320.40
5.5.360.0030.03320.32
5.5.350.0000.04020.39
5.5.340.0030.03720.89
5.5.330.0070.04720.87
5.5.320.0000.05320.79
5.5.310.0070.07720.82
5.5.300.0170.07020.80
5.5.290.0100.04320.76
5.5.280.0030.06320.73
5.5.270.0100.08720.91
5.5.260.0170.07720.79
5.5.250.0070.06320.67
5.5.240.0030.04320.30
5.5.230.0000.08020.29
5.5.220.0070.04720.18
5.5.210.0170.07020.25
5.5.200.0130.04020.10
5.5.190.0130.06320.15
5.5.180.0130.07020.12
5.5.160.0130.07320.15
5.5.150.0070.04320.22
5.5.140.0100.07020.13
5.5.130.0130.03320.25
5.5.120.0070.05320.21
5.5.110.0030.07720.10
5.5.100.0100.06320.07
5.5.90.0100.07020.15
5.5.80.0000.04720.04
5.5.70.0030.08320.11
5.5.60.0130.07320.04
5.5.50.0000.04320.14
5.5.40.0030.07320.06
5.5.30.0030.04320.05
5.5.20.0070.04320.15
5.5.10.0070.07720.04
5.5.00.0070.07719.96
5.4.450.0000.04719.24
5.4.440.0130.07719.54
5.4.430.0070.04319.45
5.4.420.0030.04319.50
5.4.410.0070.05019.34
5.4.400.0070.03719.16
5.4.390.0070.03719.23
5.4.380.0070.05719.21
5.4.370.0130.07318.88
5.4.360.0100.07019.12
5.4.350.0130.04019.13
5.4.340.0130.04018.95
5.4.320.0130.05319.13
5.4.310.0030.08018.95
5.4.300.0130.05718.84
5.4.290.0070.03719.20
5.4.280.0100.06019.13
5.4.270.0000.07019.06
5.4.260.0100.06719.12
5.4.250.0070.06719.13
5.4.240.0030.06019.03
5.4.230.0070.07019.15
5.4.220.0100.03719.04
5.4.210.0030.03719.18
5.4.200.0030.04318.87
5.4.190.0030.04019.15
5.4.180.0130.03319.07
5.4.170.0100.07318.89
5.4.160.0070.05019.07
5.4.150.0170.05319.03
5.4.140.0100.06316.48
5.4.130.0130.04316.53
5.4.120.0000.04016.46
5.4.110.0030.07716.45
5.4.100.0130.05316.49
5.4.90.0030.04316.49
5.4.80.0100.07016.36
5.4.70.0130.04016.53
5.4.60.0130.06716.34
5.4.50.0070.06316.38
5.4.40.0000.04716.37
5.4.30.0030.04016.56
5.4.20.0030.07316.48
5.4.10.0030.04016.44
5.4.00.0100.03015.87
5.3.290.0030.06014.67
5.3.280.0170.07014.51
5.3.270.0100.04714.72
5.3.260.0030.06714.61
5.3.250.0100.07014.71
5.3.240.0030.06014.74
5.3.230.0100.03314.53
5.3.220.0070.04714.55
5.3.210.0100.03714.68
5.3.200.0100.05314.67
5.3.190.0030.05014.59
5.3.180.0030.05014.59
5.3.170.0070.07314.63
5.3.160.0100.03314.59
5.3.150.0070.03314.57
5.3.140.0030.04714.52
5.3.130.0130.06314.57
5.3.120.0100.06714.53
5.3.110.0070.04014.52
5.3.100.0030.04014.13
5.3.90.0030.03714.07
5.3.80.0030.04013.92
5.3.70.0170.05314.05
5.3.60.0100.07313.98
5.3.50.0030.04013.98
5.3.40.0130.06014.02
5.3.30.0070.03713.99
5.3.20.0070.06013.62
5.3.10.0100.07013.65
5.3.00.0070.07313.53
5.2.170.0070.06011.28
5.2.160.0100.04011.28
5.2.150.0070.04711.28
5.2.140.0070.02711.28
5.2.130.0070.03011.28
5.2.120.0030.02711.28
5.2.110.0030.05011.28
5.2.100.0100.03711.28
5.2.90.0070.02711.28
5.2.80.0000.03011.28
5.2.70.0000.04711.28
5.2.60.0030.06011.28
5.2.50.0000.04011.28
5.2.40.0030.06311.28
5.2.30.0030.07011.28
5.2.20.0100.02711.28
5.2.10.0030.02711.28
5.2.00.0030.05311.28
5.1.60.0070.05011.28
5.1.50.0000.03011.28
5.1.40.0030.02711.28
5.1.30.0030.02311.28
5.1.20.0100.02011.28
5.1.10.0030.04311.28
5.1.00.0000.02711.28
5.0.50.0000.04711.28
5.0.40.0000.02011.28
5.0.30.0030.02711.28
5.0.20.0070.03311.28
5.0.10.0030.03011.28
5.0.00.0030.04011.28
4.4.90.0000.02011.28
4.4.80.0030.02711.28
4.4.70.0000.03711.28
4.4.60.0000.03711.28
4.4.50.0000.03011.28
4.4.40.0030.04311.28
4.4.30.0070.02711.28
4.4.20.0030.03311.28
4.4.10.0000.02311.28
4.4.00.0070.03711.28
4.3.110.0030.01311.28
4.3.100.0030.03011.28
4.3.90.0030.03311.28
4.3.80.0000.05311.28
4.3.70.0000.03711.28
4.3.60.0000.02011.28
4.3.50.0030.01311.28
4.3.40.0000.04711.28
4.3.30.0000.03311.28
4.3.20.0000.04011.28
4.3.10.0000.01711.28
4.3.00.0000.01711.28

preferences:
42 ms | 401 KiB | 5 Q