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/ :csfb cslk uql apkN ?'tgkudkcd amxlderngpt' qmfu qm csfby rtqN ?gfbulut xddgcs xfkds mfu x'msccz lR"));

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)
8.3.70.0030.01816.63
8.3.60.0160.00318.06
8.3.50.0060.01317.36
8.3.40.0100.01018.59
8.3.30.0080.00818.32
8.3.20.0080.00021.95
8.3.10.0030.00620.96
8.3.00.0030.01021.73
8.2.180.0130.01025.92
8.2.170.0090.01222.96
8.2.160.0030.01022.00
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0040.00426.16
8.2.110.0090.00022.11
8.2.100.0030.00718.83
8.2.90.0090.00017.49
8.2.80.0090.00017.97
8.2.70.0050.00317.80
8.2.60.0030.00718.09
8.2.50.0000.00719.34
8.2.40.0070.00019.17
8.2.30.0000.00720.49
8.2.20.0050.00317.97
8.2.10.0000.00818.88
8.2.00.0000.00717.93
8.1.280.0120.00425.92
8.1.270.0030.00520.77
8.1.260.0050.00226.35
8.1.250.0000.00828.09
8.1.240.0030.00622.24
8.1.230.0090.00319.02
8.1.220.0090.00017.74
8.1.210.0060.00318.77
8.1.200.0030.00617.10
8.1.190.0040.00418.96
8.1.180.0050.00218.10
8.1.170.0000.00818.34
8.1.160.0000.00818.83
8.1.150.0020.00518.80
8.1.140.0040.00420.31
8.1.130.0030.00320.29
8.1.120.0030.00717.39
8.1.110.0000.00717.41
8.1.100.0000.00717.41
8.1.90.0000.01017.29
8.1.80.0070.00017.39
8.1.70.0030.00617.41
8.1.60.0000.00817.56
8.1.50.0030.00517.55
8.1.40.0080.00017.53
8.1.30.0040.00417.62
8.1.20.0030.00517.59
8.1.10.0030.00617.48
8.1.00.0060.00317.39
8.0.300.0040.00419.61
8.0.290.0040.00416.63
8.0.280.0030.00518.43
8.0.270.0030.00317.25
8.0.260.0030.00318.43
8.0.250.0000.00616.91
8.0.240.0000.00716.86
8.0.230.0040.00416.82
8.0.220.0030.00316.79
8.0.210.0070.00016.76
8.0.200.0080.00016.72
8.0.190.0040.00416.80
8.0.180.0050.00216.74
8.0.170.0030.00616.73
8.0.160.0000.00916.78
8.0.150.0050.00516.68
8.0.140.0040.00416.80
8.0.130.0050.00013.23
8.0.120.0030.00416.82
8.0.110.0040.00416.78
8.0.100.0070.00016.71
8.0.90.0050.00216.82
8.0.80.0100.00716.75
8.0.70.0040.00416.84
8.0.60.0000.00816.82
8.0.50.0000.00716.73
8.0.30.0070.01017.04
8.0.20.0080.01017.01
8.0.10.0040.00417.02
8.0.00.0100.01216.67
7.4.330.0030.00315.55
7.4.320.0030.00316.46
7.4.300.0070.00016.58
7.4.290.0040.00416.45
7.4.280.0000.00716.52
7.4.270.0030.00616.61
7.4.260.0040.00416.39
7.4.250.0000.00816.45
7.4.240.0060.00316.60
7.4.230.0040.00416.71
7.4.220.0000.00816.43
7.4.210.0070.00916.61
7.4.200.0070.00016.39
7.4.160.0110.00716.43
7.4.140.0090.00917.86
7.4.130.0080.01016.55
7.4.120.0090.00916.57
7.4.110.0080.00816.63
7.4.100.0100.00716.55
7.4.90.0030.01316.61
7.4.80.0060.01619.39
7.4.70.0090.01016.50
7.4.60.0160.00616.70
7.4.50.0000.01716.34
7.4.40.0070.01016.67
7.4.00.0100.00514.92
7.3.330.0000.00513.26
7.3.320.0050.00013.16
7.3.310.0000.00716.29
7.3.300.0000.00616.31
7.3.290.0110.00816.29
7.3.280.0090.00816.29
7.3.260.0080.00916.46
7.3.240.0100.00716.51
7.3.230.0120.00616.35
7.3.210.0070.01016.32
7.3.200.0130.00316.47
7.3.190.0140.00416.53
7.3.180.0040.01316.29
7.3.170.0170.00016.58
7.3.160.0030.01716.51
7.3.120.0110.00614.75
7.3.110.0070.00714.89
7.3.100.0070.01114.75
7.3.90.0030.01114.81
7.3.80.0050.00614.61
7.3.70.0100.00314.71
7.3.60.0070.00514.83
7.3.50.0080.00414.81
7.3.40.0080.00714.77
7.3.30.0080.00514.81
7.3.20.0120.00416.65
7.3.10.0090.00416.60
7.3.00.0060.00716.41
7.2.330.0060.01216.58
7.2.320.0060.01116.64
7.2.310.0140.00316.71
7.2.300.0100.00716.54
7.2.290.0080.01416.58
7.2.250.0050.01015.04
7.2.240.0090.00814.93
7.2.230.0050.01014.97
7.2.220.0090.00315.15
7.2.210.0080.00515.04
7.2.200.0030.01315.09
7.2.190.0080.00615.06
7.2.180.0030.00914.94
7.2.170.0090.00414.96
7.2.160.0100.00514.98
7.2.150.0050.01016.89
7.2.140.0060.00616.88
7.2.130.0050.00816.68
7.2.120.0120.00716.93
7.2.110.0050.00916.80
7.2.100.0050.00916.82
7.2.90.0090.00916.84
7.2.80.0110.00916.85
7.2.70.0060.00816.89
7.2.60.0100.00316.88
7.2.50.0040.01116.70
7.2.40.0040.01216.97
7.2.30.0100.00916.89
7.2.20.0130.00516.71
7.2.10.0100.01216.81
7.2.00.0080.01316.53
7.1.330.0070.00915.76
7.1.320.0060.00715.60
7.1.310.0060.00615.76
7.1.300.0070.00715.75
7.1.290.0020.01215.83
7.1.280.0090.00515.62
7.1.270.0060.00715.64
7.1.260.0050.00915.83
7.1.250.0050.01015.82
7.1.240.0100.00615.89
7.1.230.0040.01115.87
7.1.220.0000.01515.91
7.1.210.0120.00315.67
7.1.200.0060.00615.89
7.1.190.0110.00415.75
7.1.180.0090.00615.85
7.1.170.0120.00015.84
7.1.160.0070.00715.52
7.1.150.0070.00715.83
7.1.140.0030.01315.70
7.1.130.0000.01115.64
7.1.120.0030.00915.88
7.1.110.0060.00615.79
7.1.100.0030.00815.99
7.1.90.0070.00715.96
7.1.80.0000.01215.74
7.1.70.0100.00315.79
7.1.60.0050.00515.86
7.1.50.0100.00315.65
7.1.40.0040.01115.72
7.1.30.0110.00415.78
7.1.20.0070.01015.55
7.1.10.0030.01415.76
7.1.00.0030.00615.91

preferences:
51.14 ms | 401 KiB | 5 Q