3v4l.org

run code in 300+ PHP versions simultaneously
<?php $encodedSecret = "3d3d516343746d4d6d6c315669563362"; function encodeSecret($secret) { return bin2hex(strrev(base64_encode($secret))); } echo encodeSecret("hello") ?>

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)
8.3.60.0110.01116.63
8.3.50.0080.00918.29
8.3.40.0100.01418.84
8.3.30.0120.00318.71
8.3.20.0030.00618.60
8.3.10.0060.00320.41
8.3.00.0000.00819.13
8.2.180.0140.00316.38
8.2.170.0100.01022.96
8.2.160.0070.01118.67
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0070.00026.16
8.2.120.0090.00018.88
8.2.110.0060.00319.32
8.2.100.0060.00617.78
8.2.90.0040.00419.22
8.2.80.0000.00719.39
8.2.70.0040.00717.47
8.2.60.0000.00917.93
8.2.50.0040.00418.07
8.2.40.0050.00218.34
8.2.30.0080.00017.97
8.2.20.0030.00617.67
8.2.10.0050.00317.57
8.2.00.0030.00617.51
8.1.280.0140.00425.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00323.85
8.1.230.0040.00820.91
8.1.220.0080.00018.77
8.1.210.0060.00319.02
8.1.200.0000.00917.35
8.1.190.0030.00517.53
8.1.180.0000.00818.10
8.1.170.0040.00418.83
8.1.160.0040.00418.75
8.1.150.0000.00918.44
8.1.140.0000.00717.30
8.1.130.0000.00717.79
8.1.120.0000.00717.38
8.1.110.0080.00017.44
8.1.100.0040.00417.39
8.1.90.0000.00717.43
8.1.80.0000.00717.30
8.1.70.0000.00717.39
8.1.60.0030.00617.57
8.1.50.0040.00417.44
8.1.40.0040.00417.37
8.1.30.0000.00817.61
8.1.20.0050.00217.62
8.1.10.0000.00717.48
8.1.00.0070.00017.33
8.0.300.0070.00020.00
8.0.290.0000.00816.75
8.0.280.0030.00318.35
8.0.270.0030.00317.25
8.0.260.0050.00316.72
8.0.250.0040.00416.98
8.0.240.0040.00416.91
8.0.230.0000.00816.81
8.0.220.0030.00316.83
8.0.210.0030.00316.77
8.0.200.0030.00316.91
8.0.190.0040.00316.79
8.0.180.0040.00416.75
8.0.170.0060.00316.70
8.0.160.0070.00016.88
8.0.150.0040.00416.80
8.0.140.0040.00416.67
8.0.130.0000.00513.26
8.0.120.0040.00416.75
8.0.110.0040.00416.83
8.0.100.0000.00716.81
8.0.90.0040.00416.64
8.0.80.0000.01516.79
8.0.70.0040.00416.77
8.0.60.0030.00616.68
8.0.50.0000.00716.88
8.0.30.0070.01417.40
8.0.20.0080.01216.95
8.0.10.0000.00716.86
8.0.00.0120.01016.69
7.4.330.0020.00212.95
7.4.320.0000.00716.36
7.4.300.0000.00616.58
7.4.290.0040.00416.61
7.4.280.0000.00916.45
7.4.270.0070.00016.58
7.4.260.0000.00513.29
7.4.250.0000.00816.57
7.4.240.0030.00316.59
7.4.230.0070.00016.70
7.4.220.0090.00916.53
7.4.210.0040.01216.64
7.4.200.0040.00416.60
7.4.190.0040.00416.60
7.4.160.0100.00716.61
7.4.150.0030.01316.35
7.4.140.0060.01316.52
7.4.130.0070.01116.48
7.4.120.0080.00816.43
7.4.110.0090.00916.63
7.4.100.0100.00716.46
7.4.90.0140.00416.43
7.4.80.0030.01419.39
7.4.70.0110.00516.48
7.4.60.0070.01016.40
7.4.50.0050.00016.53
7.4.40.0040.01516.33
7.4.30.0080.00816.45
7.4.00.0090.00615.00
7.3.330.0000.00613.23
7.3.320.0030.00313.21
7.3.310.0000.00716.22
7.3.300.0030.00316.24
7.3.290.0060.00816.25
7.3.280.0070.00816.30
7.3.270.0100.00716.33
7.3.260.0130.01316.30
7.3.250.0120.01016.26
7.3.240.0090.00616.63
7.3.230.0130.01016.31
7.3.210.0090.00916.13
7.3.200.0100.00716.09
7.3.190.0030.01816.43
7.3.180.0120.00316.19
7.3.170.0030.01216.25
7.3.160.0130.00316.37
7.3.120.0030.00714.61
7.2.330.0100.00716.57
7.2.320.0160.00616.67
7.2.310.0150.00916.30
7.2.300.0070.01316.38
7.2.290.0080.00816.56
7.2.00.0070.00719.30
7.1.200.0030.00915.85
7.1.100.0000.01717.99
7.1.70.0030.00616.59
7.1.60.0130.00319.31
7.1.50.0000.01916.52
7.1.00.0030.04722.40
7.0.200.0070.00316.43
7.0.140.0000.07722.02
7.0.120.0070.07022.16
7.0.60.0070.09020.02
7.0.50.0030.04017.91
7.0.40.0070.08020.23
7.0.30.0370.05020.09
7.0.20.0130.05020.21
7.0.10.0030.04320.19
7.0.00.0030.05320.25
5.6.280.0070.06721.06
5.6.210.0030.04720.57
5.6.200.0070.06318.23
5.6.190.0070.08320.41
5.6.180.0200.03320.50
5.6.170.0100.04720.39
5.6.160.0070.08320.54
5.6.150.0070.04018.15
5.6.140.0030.04718.18
5.6.130.0100.07018.18
5.6.120.0030.04021.13
5.6.110.0100.06721.14
5.6.100.0030.04720.89
5.6.90.0100.03721.11
5.6.80.0030.07320.54
5.5.350.0300.03720.34
5.5.340.0030.07018.01
5.5.330.0100.06320.31
5.5.320.0370.07320.27
5.5.310.0270.07720.25
5.5.300.0100.06718.03
5.5.290.0100.07717.97
5.5.280.0030.06320.88
5.5.270.0070.08020.88
5.5.260.0100.07020.88
5.5.250.0070.03720.71
5.5.240.0270.06020.24
5.4.450.0100.07319.40
5.4.440.0000.04719.18
5.4.430.0030.08719.30
5.4.420.0100.07319.16
5.4.410.0100.06719.45
5.4.400.0100.03319.01
5.4.390.0100.06019.16
5.4.380.0100.07319.24
5.4.370.0030.06718.88
5.4.360.0030.05019.14
5.4.350.0070.04719.15
5.4.340.0200.05719.25
5.4.320.0130.07319.08
5.4.310.0100.07019.00
5.4.300.0030.07718.97
5.4.290.0030.08019.08
5.4.280.0030.04018.98
5.4.270.0170.06019.24
5.4.260.0100.03319.14
5.4.250.0030.04719.14
5.4.240.0100.06719.20
5.4.230.0030.07719.23
5.4.220.0100.07318.99
5.4.210.0100.05319.11
5.4.200.0030.05018.84
5.4.190.0100.03019.14
5.4.180.0000.04319.14
5.4.170.0100.07319.11
5.4.160.0030.04718.83
5.4.150.0070.08018.83
5.4.140.0070.07016.31
5.4.130.0030.07016.34
5.4.120.0070.07016.29
5.4.110.0100.04016.78
5.4.100.0070.04716.39
5.4.90.0030.03716.41
5.4.80.0000.07016.32
5.4.70.0170.06016.45
5.4.60.0070.04016.26
5.4.50.0230.05716.48
5.4.40.0030.04016.36
5.4.30.0070.03316.36
5.4.20.0070.03016.42
5.4.10.0030.04016.30
5.4.00.0000.03715.79
5.3.290.0100.04714.70
5.3.280.0070.07314.58
5.3.270.0130.05714.62
5.3.260.0070.05014.62
5.3.250.0070.07314.59
5.3.240.0000.07314.62
5.3.230.0070.04714.60
5.3.220.0070.03314.45
5.3.210.0070.04714.61
5.3.200.0000.07314.57
5.3.190.0100.03314.62
5.3.180.0170.05714.61
5.3.170.0030.07714.61
5.3.160.0030.03714.58
5.3.150.0100.07714.56
5.3.140.0070.04714.54
5.3.130.0030.04014.55
5.3.120.0070.03714.54
5.3.110.0000.04014.56
5.3.100.0000.06314.04
5.3.90.0100.03713.98
5.3.80.0030.03713.98
5.3.70.0030.03714.04
5.3.60.0030.03713.95
5.3.50.0000.04313.83
5.3.40.0000.03713.98
5.3.30.0030.03313.95
5.3.20.0030.03313.74
5.3.10.0000.03713.71
5.3.00.0030.05013.70
5.2.170.0000.03011.14
5.2.160.0030.02711.14
5.2.150.0030.02711.09
5.2.140.0070.03311.10
5.2.130.0000.03011.15
5.2.120.0030.02711.16
5.2.110.0000.03311.24
5.2.100.0030.02711.15
5.2.90.0100.02311.02
5.2.80.0070.02311.06
5.2.70.0070.04711.13
5.2.60.0000.03011.21
5.2.50.0030.02710.98
5.2.40.0000.03011.04
5.2.30.0000.03010.93
5.2.20.0000.03010.96
5.2.10.0000.03010.82
5.2.00.0030.02710.75
5.1.60.0030.0239.97
5.1.50.0000.0279.95
5.1.40.0070.02010.04
5.1.30.0000.02710.39
5.1.20.0000.02710.35
5.1.10.0000.02710.21
5.1.00.0030.02310.20
5.0.50.0030.0178.61
5.0.40.0000.0208.40
5.0.30.0000.0308.12
5.0.20.0000.0208.34
5.0.10.0000.0238.17
5.0.00.0000.0308.07
4.4.90.0000.0207.91
4.4.80.0030.0137.91
4.4.70.0000.0177.91
4.4.60.0030.0137.91
4.4.50.0000.0177.91
4.4.40.0000.0237.91
4.4.30.0030.0137.91
4.4.20.0030.0137.91
4.4.10.0000.0177.91
4.4.00.0000.0237.91
4.3.110.0000.0207.91
4.3.100.0000.0137.91
4.3.90.0000.0137.91
4.3.80.0030.0207.91
4.3.70.0000.0137.91
4.3.60.0000.0137.91
4.3.50.0070.0107.91
4.3.40.0000.0237.91
4.3.30.0000.0137.91
4.3.20.0000.0177.91
4.3.10.0000.0137.91
4.3.00.0030.0137.91

preferences:
66.79 ms | 401 KiB | 5 Q