3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'M2ZWUHlYMmVFY01rMg=='; echo $str, "\n"; $str2 = base64_decode($str); echo $str2, "\n"; $str3 = strrev($str2); echo $str3, "\n"; $str4 = base64_decode($str3); echo bin2hex($str4), "\n"; $str4 = base64_decode($str3 . '='); echo $str4, "\n"; $str4 = base64_decode($str3 . '=='); echo $str4, "\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)
8.3.60.0190.00318.30
8.3.50.0110.00821.22
8.3.40.0110.00718.71
8.3.30.0040.01218.57
8.3.20.0050.00320.20
8.3.10.0040.00423.66
8.3.00.0030.00519.66
8.2.180.0070.01016.63
8.2.170.0070.00722.96
8.2.160.0070.00720.30
8.2.150.0040.00424.18
8.2.140.0130.00624.66
8.2.130.0070.00026.16
8.2.120.0030.00717.50
8.2.110.0040.00420.52
8.2.100.0000.01117.50
8.2.90.0070.00019.27
8.2.80.0040.00417.97
8.2.70.0040.00417.50
8.2.60.0040.00417.80
8.2.50.0030.00618.07
8.2.40.0000.00719.46
8.2.30.0030.00519.75
8.2.20.0000.00817.70
8.2.10.0070.00018.10
8.2.00.0040.00418.13
8.1.280.0160.00325.92
8.1.270.0080.00020.21
8.1.260.0070.00026.35
8.1.250.0050.00228.09
8.1.240.0040.00719.61
8.1.230.0110.00017.42
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0040.00417.36
8.1.190.0030.00617.13
8.1.180.0040.00418.10
8.1.170.0030.00518.50
8.1.160.0070.00021.89
8.1.150.0000.00718.77
8.1.140.0050.00417.30
8.1.130.0020.00517.56
8.1.120.0000.00717.30
8.1.110.0050.00317.37
8.1.100.0030.00517.44
8.1.90.0040.00417.43
8.1.80.0030.00517.35
8.1.70.0030.00317.43
8.1.60.0040.00417.50
8.1.50.0040.00417.34
8.1.40.0050.00317.39
8.1.30.0050.00317.65
8.1.20.0050.00317.58
8.1.10.0040.00417.38
8.1.00.0000.00817.47
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0030.00318.43
8.0.270.0030.00317.32
8.0.260.0000.00617.28
8.0.250.0050.00216.98
8.0.240.0030.00316.88
8.0.230.0040.00716.96
8.0.220.0070.00016.85
8.0.210.0000.00716.95
8.0.200.0000.00716.97
8.0.190.0060.00316.85
8.0.180.0000.00716.93
8.0.170.0060.00316.86
8.0.160.0030.00516.86
8.0.150.0030.00616.90
8.0.140.0030.00516.87
8.0.130.0060.00313.38
8.0.120.0000.00816.86
8.0.110.0040.00416.86
8.0.100.0070.00016.89
8.0.90.0040.00417.02
8.0.80.0030.01316.92
8.0.70.0050.00216.86
8.0.60.0000.00716.77
8.0.50.0000.00716.78
8.0.30.0130.00517.05
8.0.20.0150.00517.40
8.0.10.0040.00416.84
8.0.00.0110.00716.69
7.4.330.0050.00015.08
7.4.320.0070.00016.46
7.4.300.0040.00416.54
7.4.290.0000.00716.50
7.4.280.0000.00716.47
7.4.270.0000.00616.34
7.4.260.0080.00316.50
7.4.250.0000.00716.45
7.4.240.0040.00416.56
7.4.230.0030.00316.35
7.4.220.0110.00716.39
7.4.210.0070.01216.53
7.4.200.0070.00016.57
7.4.160.0160.00616.26
7.4.150.0150.00917.40
7.4.140.0130.01017.86
7.4.130.0070.01216.57
7.4.120.0090.00816.55
7.4.110.0100.00716.34
7.4.100.0070.01016.44
7.4.90.0130.00316.41
7.4.80.0130.00619.39
7.4.70.0080.00916.28
7.4.60.0060.01216.39
7.4.50.0000.00916.52
7.4.40.0040.01816.62
7.4.30.0120.00816.56
7.4.00.0030.01314.91
7.3.330.0000.00613.14
7.3.320.0030.00313.06
7.3.310.0000.00716.21
7.3.300.0000.00716.09
7.3.290.0030.00316.24
7.3.280.0070.01016.20
7.3.270.0080.01117.40
7.3.260.0120.00616.30
7.3.250.0080.00816.13
7.3.240.0060.01116.28
7.3.230.0120.00616.39
7.3.210.0140.00416.29
7.3.200.0130.00316.16
7.3.190.0130.00316.33
7.3.180.0120.00616.30
7.3.170.0030.01216.27
7.3.160.0060.01016.09
7.3.10.0060.01016.73
7.3.00.0000.01216.78
7.2.330.0090.00916.74
7.2.320.0040.01316.34
7.2.310.0070.01416.39
7.2.300.0090.01216.46
7.2.290.0030.01416.66
7.2.130.0040.00816.88
7.2.120.0060.00916.97
7.2.110.0060.00316.88
7.2.100.0030.00716.82
7.2.90.0100.00317.09
7.2.80.0070.00716.96
7.2.70.0000.01716.78
7.2.60.0050.00616.65
7.2.50.0040.01116.71
7.2.40.0070.00716.55
7.2.30.0070.00316.94
7.2.20.0060.00916.98
7.2.10.0060.00617.05
7.2.00.0140.01018.05
7.1.250.0070.00615.98
7.1.200.0070.00415.93
7.1.100.0000.01217.98
7.1.70.0050.00217.14
7.1.60.0040.01117.36
7.1.50.0040.00716.75
7.1.40.0000.01016.53
7.1.30.0110.00316.91
7.1.20.0070.01016.79
7.1.10.0030.00616.79
7.1.00.0030.00516.53
7.0.200.0070.00016.84
7.0.190.0030.00316.73
7.0.180.0030.00516.18
7.0.170.0040.00816.15
7.0.160.0030.00916.23
7.0.150.0030.00616.51
7.0.140.0000.01016.54
7.0.130.0100.00316.44
7.0.120.0040.01116.45
7.0.110.0060.00616.36
7.0.100.0030.01316.41
7.0.90.0040.00716.26
7.0.80.0030.00716.37
7.0.70.0000.00716.48
7.0.60.0060.00616.27
7.0.50.0020.00516.59
7.0.40.0030.01315.18
7.0.30.0000.01015.18
7.0.20.0030.00615.18
7.0.10.0000.00815.18
7.0.00.0030.00515.18
5.6.300.0000.04420.74
5.6.290.0130.03120.66
5.6.280.0030.04120.86
5.6.270.0070.05020.96
5.6.260.0000.04720.87
5.6.250.0060.04821.02
5.6.240.0040.03920.85
5.6.230.0030.04120.83
5.6.220.0100.06720.95
5.6.210.0070.08320.92
5.6.200.0070.07721.02
5.6.190.0130.06920.82
5.6.180.0070.05420.95
5.6.170.0070.03820.80
5.6.160.0070.03920.81
5.6.150.0000.04820.93
5.6.140.0100.03820.82
5.6.130.0070.04020.84
5.6.120.0140.03020.99
5.6.110.0000.05920.82
5.6.100.0100.07720.72
5.6.90.0100.03820.94
5.6.80.0000.04720.21
5.6.70.0030.03820.35
5.6.60.0170.04020.20
5.6.50.0030.04220.34
5.6.40.0030.03920.38
5.6.30.0030.04320.19
5.6.20.0060.04820.08
5.6.10.0000.04220.11
5.6.00.0100.03920.16
5.5.380.0000.04517.58
5.5.370.0200.03617.48
5.5.360.0030.04417.46
5.5.350.0000.04317.50
5.5.340.0070.05617.84
5.5.330.0030.03917.99
5.5.320.0030.04217.98
5.5.310.0030.04818.06
5.5.300.0000.04218.07
5.5.290.0030.04118.05
5.5.280.0030.08317.86
5.5.270.0030.08117.84
5.5.260.0030.09018.00
5.5.250.0030.04117.92
5.5.240.0000.04217.50
5.5.230.0000.04517.35
5.5.220.0000.04217.45
5.5.210.0000.04117.48
5.5.200.0030.04017.40
5.5.190.0070.04417.41
5.5.180.0040.03917.46
5.5.160.0030.03717.32
5.5.150.0100.04817.37
5.5.140.0160.03317.36
5.5.130.0030.03717.37
5.5.120.0130.02917.37
5.5.110.0070.03317.11
5.5.100.0070.08217.21
5.5.90.0000.04117.23
5.5.80.0030.07817.20
5.5.70.0030.04217.07
5.5.60.0000.04717.26
5.5.50.0030.03617.20
5.5.40.0030.04117.31
5.5.30.0030.04617.35
5.5.20.0070.04016.94
5.5.10.0000.04417.18
5.5.00.0060.04817.28
5.4.450.0000.04219.37
5.4.440.0000.04319.39
5.4.430.0000.05219.21
5.4.420.0070.07719.14
5.4.410.0070.03719.36
5.4.400.0030.03719.17
5.4.390.0070.03419.16
5.4.380.0070.03519.13
5.4.370.0030.03718.98
5.4.360.0070.04319.14
5.4.350.0030.03719.07
5.4.340.0030.04618.93
5.4.320.0030.05718.88
5.4.310.0000.04318.98
5.4.300.0100.06019.13
5.4.290.0030.03619.13
5.4.280.0070.03719.13
5.4.270.0030.05618.89
5.4.260.0060.04919.02
5.4.250.0060.03519.01
5.4.240.0030.03718.85
5.4.230.0040.04919.01
5.4.220.0030.04018.97
5.4.210.0070.03319.13
5.4.200.0030.06519.06
5.4.190.0030.05718.90
5.4.180.0000.04219.15
5.4.170.0070.04218.97
5.4.160.0030.04118.98
5.4.150.0000.06419.05
5.4.140.0030.03516.47
5.4.130.0030.08016.63
5.4.120.0070.03416.69
5.4.110.0070.03716.63
5.4.100.0000.04016.57
5.4.90.0070.03116.59
5.4.80.0000.04016.59
5.4.70.0000.04116.46
5.4.60.0000.03916.45
5.4.50.0000.04316.31
5.4.40.0070.03116.38
5.4.30.0100.06016.38
5.4.20.0070.07016.47
5.4.10.0000.04116.64
5.4.00.0000.03816.01

preferences:
52.42 ms | 401 KiB | 5 Q