3v4l.org

run code in 300+ PHP versions simultaneously
<?php function encodeString($str) { for ($i = 0; $i < 5; ++$i) { $str = base64_decode(strrev($str)); } return $str; } /*var_dump(encodeString('=AFVxIkVWRWYSdlUhRVbwh1YqZkcUVVOhFGbWlXVtFDa')); var_dump(encodeString('=AFVxI1VrRWYSdlUhRVbwh1YqZkcUVVOhFGbWlXVtFDa')); var_dump(encodeString('==AUUFjQWZlWX10VSFmUtBnUWdkUzVlbOd3VGpleVxGZaZ1aKVlV650cidkRoRVb4plUxA3VWZFa0ImVaVlUtFDaW1Ge1Z1aJhnVGFUP')); var_dump(encodeString('==AUUFjQWZFZhJVbShlVrZlaTVEczZlbjVjVxIVWS1GcoZVbSZUWVx2cStWMLJFbSV1Yx82dVJDehFWMaRVVrpVaZZFczZ1aJhnVGFUP')); var_dump(encodeString('==AUUFjQWZlWhJFbOhWYEJUalZEbzZ1akdUTxI1VVxGZoFmRKNXVsR2aS1mSoVVbwZVZWxmVV1GbTFWMKhmUtFzUT12d6ZVb0gnVGFUP')); */ var_dump(encodeString('==AUUFjQWZlVr1UbSdVTUpUYOZ0b4ZFbOBTYxIlVTxmVXRFbKJnVsx2VNdlR69kVWVlUwA3VU1GbTFWMShnUtFzUZZlSZZleNhnVGFUP')); var_dump(strrev("ytzPcsqtlhsu"));

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)
8.3.70.0120.00416.58
8.3.60.0160.00318.31
8.3.50.0100.00818.15
8.3.40.0070.01018.89
8.3.30.0160.00618.29
8.3.20.0090.00021.77
8.3.10.0090.00020.87
8.3.00.0080.00021.75
8.2.180.0140.00725.92
8.2.170.0140.00718.96
8.2.160.0070.00722.96
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0040.00426.16
8.2.110.0060.00322.08
8.2.100.0090.00318.73
8.2.90.0000.00817.63
8.2.80.0080.00017.97
8.2.70.0080.00017.67
8.2.60.0050.00518.03
8.2.50.0000.00819.40
8.2.40.0070.00019.17
8.2.30.0050.00320.54
8.2.20.0040.00418.07
8.2.10.0030.00618.75
8.2.00.0000.00819.82
8.1.280.0100.00625.92
8.1.270.0040.00420.75
8.1.260.0030.01026.35
8.1.250.0070.00028.09
8.1.240.0060.00322.13
8.1.230.0060.00619.01
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.22
8.1.190.0000.00718.83
8.1.180.0080.00018.10
8.1.170.0050.00318.65
8.1.160.0040.00418.85
8.1.150.0030.00318.73
8.1.140.0000.00720.24
8.1.130.0070.00020.28
8.1.120.0030.00717.44
8.1.110.0040.00417.42
8.1.100.0040.00417.43
8.1.90.0060.00317.39
8.1.80.0000.00717.33
8.1.70.0000.01017.27
8.1.60.0000.00817.50
8.1.50.0000.00917.46
8.1.40.0050.00317.39
8.1.30.0040.00417.52
8.1.20.0000.00817.62
8.1.10.0060.00317.46
8.1.00.0080.00017.27
8.0.300.0000.00819.64
8.0.290.0000.00716.63
8.0.280.0030.00318.37
8.0.270.0000.00717.20
8.0.260.0080.00018.38
8.0.250.0030.00316.76
8.0.240.0030.00316.81
8.0.230.0000.00716.80
8.0.220.0030.00316.88
8.0.210.0030.00316.89
8.0.200.0000.00816.87
8.0.190.0040.00416.88
8.0.180.0030.00516.87
8.0.170.0040.00416.86
8.0.160.0030.00616.86
8.0.150.0000.01016.78
8.0.140.0040.00416.71
8.0.130.0000.00613.32
8.0.120.0040.00416.71
8.0.110.0050.00316.87
8.0.100.0040.00416.66
8.0.90.0000.00716.80
8.0.80.0090.00616.81
8.0.70.0050.00216.73
8.0.60.0040.00416.70
8.0.50.0070.00016.64
8.0.30.0070.01017.11
8.0.20.0100.01216.94
8.0.10.0000.00717.00
8.0.00.0080.01116.67
7.4.330.0000.00515.55
7.4.320.0050.00216.47
7.4.300.0060.00016.54
7.4.290.0080.00016.45
7.4.280.0060.00316.56
7.4.270.0030.00716.56
7.4.260.0040.00416.50
7.4.250.0070.00016.37
7.4.240.0000.00816.43
7.4.230.0000.00716.50
7.4.220.0080.00016.48
7.4.210.0040.01116.62
7.4.200.0070.00016.59
7.4.160.0120.00616.49
7.4.140.0150.00317.86
7.4.130.0160.00616.27
7.4.120.0090.00916.47
7.4.110.0040.01216.51
7.4.100.0140.00316.50
7.4.90.0200.00016.29
7.4.80.0120.01219.39
7.4.70.0050.01116.39
7.4.60.0070.01016.48
7.4.50.0070.00716.52
7.4.40.0090.00916.54
7.4.10.0120.00616.28
7.4.00.0080.00915.73
7.3.330.0000.00513.32
7.3.320.0030.00313.16
7.3.310.0040.00416.26
7.3.300.0000.00716.17
7.3.290.0000.01316.23
7.3.280.0090.00916.31
7.3.260.0090.00916.43
7.3.240.0100.00716.31
7.3.230.0090.00916.48
7.3.210.0130.00316.48
7.3.200.0110.00716.45
7.3.190.0120.00316.67
7.3.180.0200.01116.49
7.3.170.0070.01016.30
7.3.160.0120.00616.35
7.3.130.0090.00916.37
7.3.120.0030.01315.62
7.3.110.0080.00515.48
7.3.100.0060.00915.50
7.3.90.0050.01115.30
7.3.80.0060.00615.63
7.3.70.0040.00815.44
7.3.60.0120.00315.60
7.3.50.0050.00815.12
7.3.40.0040.00915.21
7.3.30.0100.00415.13
7.3.20.0050.01117.08
7.3.10.0060.00717.00
7.3.00.0070.01317.18
7.2.330.0150.00416.68
7.2.320.0120.00416.45
7.2.310.0090.00916.68
7.2.300.0030.01316.34
7.2.290.0090.00916.48
7.2.260.0040.01416.70
7.2.250.0060.01416.49
7.2.240.0020.01015.68
7.2.230.0090.00615.90
7.2.220.0050.00915.81
7.2.210.0050.00615.77
7.2.200.0080.00815.79
7.2.190.0070.00715.78
7.2.180.0100.00615.53
7.2.170.0060.00815.49
7.2.160.0060.00915.50
7.2.150.0050.00917.36
7.2.140.0050.00817.34
7.2.130.0040.01017.26
7.2.120.0080.00617.21
7.2.110.0060.01117.29
7.2.100.0110.00617.30
7.2.90.0090.00917.35
7.2.80.0050.00817.40
7.2.70.0070.00817.27
7.2.60.0090.00517.28
7.2.50.0070.00717.21
7.2.40.0060.00717.39
7.2.30.0080.00817.29
7.2.20.0100.00617.32
7.2.10.0080.00617.29
7.2.00.0080.00717.32
7.1.330.0050.00616.63
7.1.320.0040.01016.69
7.1.310.0120.00016.72
7.1.300.0040.00916.52
7.1.290.0070.00716.55
7.1.280.0030.00916.32
7.1.270.0070.00816.20
7.1.260.0090.00316.29
7.1.250.0070.00816.20
7.1.240.0060.00317.38
7.1.230.0030.00917.27
7.1.220.0060.00617.29
7.1.210.0060.00617.45
7.1.200.0080.00617.46
7.1.190.0130.00317.39
7.1.180.0030.01317.31
7.1.170.0090.00317.44
7.1.160.0070.00717.18
7.1.150.0050.00517.20
7.1.140.0070.00317.37
7.1.130.0040.00717.23
7.1.120.0030.00617.44
7.1.110.0030.01317.40
7.1.100.0000.00917.24
7.1.90.0030.01217.37
7.1.80.0080.00417.49
7.1.70.0040.00417.27
7.1.60.0030.01017.50
7.1.50.0030.01317.57
7.1.40.0120.00017.29
7.1.30.0000.01117.40
7.1.20.0060.01017.29
7.1.10.0100.00317.25
7.1.00.0060.00917.25

preferences:
54.3 ms | 401 KiB | 5 Q