3v4l.org

run code in 300+ PHP versions simultaneously
<?php $dni = '342501198701065'; $row = str_split(strrev($dni)); $letters = array_combine(range(0,25), range('a', 'z')); //now just use: foreach($row as $n){ $dni_a[] = $letters[$n]; } $dni2 = implode($dni_a); echo $dni2;

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)
8.3.60.0080.00816.38
8.3.50.0100.00718.30
8.3.40.0000.01518.61
8.3.30.0040.01118.66
8.3.20.0080.00020.04
8.3.10.0050.00520.51
8.3.00.0020.00521.90
8.2.180.0090.00618.41
8.2.170.0070.01022.96
8.2.160.0190.00019.18
8.2.150.0070.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00422.12
8.2.120.0050.00226.35
8.2.110.0070.00421.04
8.2.100.0040.00817.84
8.2.90.0040.00418.22
8.2.80.0040.00417.97
8.2.70.0000.00818.05
8.2.60.0000.00817.79
8.2.50.0080.00018.16
8.2.40.0050.00322.28
8.2.30.0050.00219.36
8.2.20.0000.00718.18
8.2.10.0080.00017.99
8.2.00.0030.00617.64
8.1.280.0100.00725.92
8.1.270.0040.00423.96
8.1.260.0070.00028.09
8.1.250.0040.00428.09
8.1.240.0090.00023.82
8.1.230.0070.00421.10
8.1.220.0060.00317.74
8.1.210.0030.00918.77
8.1.200.0030.00617.35
8.1.190.0000.00817.23
8.1.180.0060.00318.10
8.1.170.0000.00818.52
8.1.160.0000.00722.15
8.1.150.0000.00718.88
8.1.140.0020.00519.47
8.1.130.0030.00317.57
8.1.120.0000.00817.45
8.1.110.0000.00717.41
8.1.100.0040.00417.49
8.1.90.0000.00717.43
8.1.80.0000.00817.45
8.1.70.0030.00317.33
8.1.60.0070.00017.46
8.1.50.0080.00017.53
8.1.40.0080.00017.53
8.1.30.0080.00017.71
8.1.20.0000.00817.52
8.1.10.0080.00017.46
8.1.00.0040.00417.54
8.0.300.0070.00020.03
8.0.290.0090.00016.75
8.0.280.0040.00418.49
8.0.270.0040.00417.25
8.0.260.0000.00617.37
8.0.250.0070.00016.84
8.0.240.0000.00616.94
8.0.230.0070.00016.95
8.0.220.0030.00316.89
8.0.210.0000.00716.88
8.0.200.0030.00316.83
8.0.190.0000.00916.99
8.0.180.0070.00316.92
8.0.170.0040.00416.84
8.0.160.0000.00816.86
8.0.150.0000.00716.73
8.0.140.0000.00716.87
8.0.130.0000.00513.26
8.0.120.0080.00016.86
8.0.110.0070.00316.90
8.0.100.0030.00516.83
8.0.90.0070.00016.84
8.0.80.0080.00816.83
8.0.70.0000.00916.70
8.0.60.0030.00316.84
8.0.50.0040.00416.78
8.0.30.0120.00717.04
8.0.20.0110.00917.40
8.0.10.0040.00416.90
8.0.00.0140.00316.57
7.4.330.0060.00015.16
7.4.320.0000.00616.50
7.4.300.0000.00616.51
7.4.290.0070.00016.54
7.4.280.0000.00716.49
7.4.270.0060.00016.48
7.4.260.0040.00416.49
7.4.250.0070.00016.45
7.4.240.0070.00016.57
7.4.230.0040.00416.42
7.4.220.0090.00916.53
7.4.210.0040.01216.54
7.4.200.0000.00716.40
7.4.160.0140.00416.41
7.4.150.0070.01017.40
7.4.140.0130.00817.86
7.4.130.0100.00916.52
7.4.120.0130.00716.54
7.4.110.0090.01216.28
7.4.100.0090.00616.64
7.4.90.0070.01016.44
7.4.80.0160.00319.39
7.4.70.0130.00316.53
7.4.60.0100.00616.47
7.4.50.0070.01016.45
7.4.40.0070.01316.48
7.4.30.0170.00316.56
7.4.00.0030.01014.88
7.3.330.0000.00513.06
7.3.320.0000.00613.00
7.3.310.0030.00316.40
7.3.300.0060.00016.29
7.3.290.0060.00916.25
7.3.280.0090.01116.23
7.3.270.0070.01117.40
7.3.260.0110.00716.54
7.3.250.0110.00816.33
7.3.240.0070.01016.29
7.3.230.0030.01616.39
7.3.210.0030.01316.35
7.3.200.0070.01016.68
7.3.190.0070.01116.29
7.3.180.0090.00616.36
7.3.170.0100.00616.39
7.3.160.0150.00616.32
7.3.120.0000.01814.61
7.3.110.0120.00614.61
7.3.100.0060.00814.77
7.3.90.0130.00314.79
7.3.80.0000.01214.85
7.3.70.0040.00714.73
7.3.60.0110.00514.71
7.3.50.0060.00614.69
7.3.40.0050.00814.92
7.3.30.0090.00614.88
7.3.20.0030.01016.65
7.3.10.0070.01016.46
7.3.00.0070.00716.83
7.2.330.0140.00316.74
7.2.320.0070.01616.70
7.2.310.0070.01116.79
7.2.300.0070.01016.75
7.2.290.0070.01016.56
7.2.250.0030.01515.05
7.2.240.0030.01715.25
7.2.230.0000.01714.97
7.2.220.0070.01115.03
7.2.210.0070.00715.02
7.2.200.0140.00314.78
7.2.190.0090.00314.79
7.2.180.0000.00914.95
7.2.170.0030.00915.10
7.2.110.0130.00316.57
7.1.330.0000.01315.87
7.1.320.0040.00815.86
7.1.310.0060.00615.92
7.1.300.0000.01715.32
7.1.290.0000.01415.80
7.1.280.0030.01015.77
7.1.270.0030.01215.61
7.1.260.0030.01315.91
7.1.200.0060.00615.78
7.1.70.0040.00716.93
7.1.60.0080.00317.24
7.1.00.0070.07322.28
7.0.200.0070.00714.62
7.0.110.0130.06020.20
7.0.100.0100.05720.24
7.0.90.0070.06320.30
7.0.80.0130.05320.29
7.0.70.0100.05720.26
7.0.60.0100.07020.19
7.0.50.0130.05320.20
7.0.40.0230.04320.35
7.0.30.0330.06020.28
7.0.20.0370.07720.25
7.0.10.0300.06720.24
7.0.00.0300.05720.30
5.6.260.0270.06020.84
5.6.250.0130.05720.79
5.6.240.0030.07021.04
5.6.230.0030.06321.02
5.6.220.0100.05320.96
5.6.210.0100.06020.96
5.6.200.0130.05720.75
5.6.190.0170.08321.04
5.6.180.0070.08320.84
5.6.170.0230.04721.04
5.6.160.0170.05021.00
5.6.150.0130.05720.80
5.6.140.0030.06321.03
5.6.130.0030.06321.00
5.6.120.0100.05721.08
5.6.110.0130.06720.82
5.6.100.0130.06320.85
5.6.90.0100.06720.96
5.6.80.0000.06020.21
5.6.70.0070.05720.40
5.6.60.0270.04320.40
5.6.50.0070.06320.38
5.6.40.0170.04320.21
5.6.30.0100.06020.33
5.6.20.0170.07020.39
5.6.10.0100.07320.15
5.6.00.0070.06020.39

preferences:
72.84 ms | 401 KiB | 5 Q