3v4l.org

run code in 300+ PHP versions simultaneously
<?php class security { private function addSalt($pass) { $salt1='abcdefghijkl'; //OUR FIRST 12 CHAR SALT $salt2='opqrstuvwxyz'; //OUR 2ND 12 CHAR SALT $md5 = (md5($pass)); $hash1 = $salt1.$md5.$salt2;// SALT1-MD5-SALT2 COMBINED $hash2 = strrev($hash1); //WE FLIP-REVERSE THE HASH return $hash2;//CHANGE TO RETURN }//end func private function unSalt($pass2) { $a1 = substr($pass2, -44); // WE STRIP THE FIRST 12 CHAR SALT $b1 = strrev($a1); //WE UN-FLIP THE HASH return substr($b1, -32); // WE FETCH OUR ORIGINAL MD5 AND STRIP THE 2ND SALT }//end func }//end class $h = ''; $sc = new security; for ($i = 0; $i < 100; ++$i) { echo $sc->addSalt($i), "\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)
8.3.60.0040.01118.56
8.3.50.0070.01021.10
8.3.40.0090.00618.79
8.3.30.0110.00818.94
8.3.20.0020.00520.29
8.3.10.0100.00723.64
8.3.00.0040.00423.71
8.2.180.0150.00316.75
8.2.170.0100.00722.96
8.2.160.0100.00322.26
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0090.00017.38
8.2.110.0050.00520.56
8.2.100.0090.00317.72
8.2.90.0080.00018.15
8.2.80.0080.00017.97
8.2.70.0040.00417.63
8.2.60.0040.00417.80
8.2.50.0050.00518.07
8.2.40.0030.00521.19
8.2.30.0090.00019.79
8.2.20.0030.00517.55
8.2.10.0040.00418.16
8.2.00.0040.00417.98
8.1.280.0040.01125.92
8.1.270.0080.00020.38
8.1.260.0090.00026.35
8.1.250.0050.00328.09
8.1.240.0040.00422.06
8.1.230.0040.00820.89
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0070.00318.59
8.1.160.0040.00421.91
8.1.150.0000.00718.82
8.1.140.0040.00417.44
8.1.130.0030.00317.60
8.1.120.0070.00017.47
8.1.110.0040.00417.38
8.1.100.0000.00717.33
8.1.90.0040.00417.34
8.1.80.0000.00817.28
8.1.70.0030.00517.21
8.1.60.0000.00817.48
8.1.50.0040.00417.48
8.1.40.0000.00717.50
8.1.30.0050.00317.56
8.1.20.0000.00817.69
8.1.10.0040.00417.60
8.1.00.0000.00917.47
8.0.300.0040.00420.07
8.0.290.0030.00516.75
8.0.280.0000.00718.23
8.0.270.0030.00317.19
8.0.260.0000.00617.14
8.0.250.0000.00816.85
8.0.240.0030.00316.91
8.0.230.0040.00416.93
8.0.220.0040.00416.78
8.0.210.0000.00716.77
8.0.200.0040.00416.93
8.0.190.0080.00016.96
8.0.180.0040.00416.93
8.0.170.0000.00816.89
8.0.160.0000.00816.89
8.0.150.0030.00616.72
8.0.140.0000.00716.78
8.0.130.0000.00613.30
8.0.120.0060.00316.75
8.0.110.0080.00016.79
8.0.100.0030.00516.84
8.0.90.0050.00216.70
8.0.80.0060.00916.83
8.0.70.0040.00416.77
8.0.60.0000.00816.71
8.0.50.0000.00716.80
8.0.30.0110.00817.06
8.0.20.0100.00717.40
8.0.10.0050.00217.07
8.0.00.0030.01416.80
7.4.330.0060.00015.08
7.4.320.0040.00416.54
7.4.300.0000.00616.45
7.4.290.0000.00716.51
7.4.280.0000.01016.61
7.4.270.0000.00716.45
7.4.260.0070.00016.54
7.4.250.0030.00316.54
7.4.240.0040.00316.63
7.4.230.0030.00316.71
7.4.220.0150.00716.63
7.4.210.0090.00916.59
7.4.200.0000.00716.63
7.4.160.0030.01316.73
7.4.150.0070.01117.40
7.4.140.0080.01117.86
7.4.130.0080.01216.50
7.4.120.0100.01516.54
7.4.110.0030.01416.58
7.4.100.0090.01016.45
7.4.90.0150.00916.51
7.4.80.0110.00619.39
7.4.70.0090.01216.47
7.4.60.0070.01016.46
7.4.50.0060.00316.41
7.4.40.0090.00616.46
7.4.30.0090.01116.54
7.4.00.0100.00815.04
7.3.330.0000.00613.18
7.3.320.0000.00613.36
7.3.310.0050.00216.41
7.3.300.0000.00616.37
7.3.290.0060.01116.37
7.3.280.0140.00616.33
7.3.270.0100.00617.40
7.3.260.0150.00316.48
7.3.250.0120.00716.33
7.3.240.0040.01416.53
7.3.230.0120.00416.39
7.3.210.0100.00716.44
7.3.200.0000.01616.55
7.3.190.0100.00716.66
7.3.180.0120.00916.35
7.3.170.0030.01516.46
7.3.160.0090.00916.57
7.3.120.0090.00314.87
7.3.110.0110.00714.63
7.3.100.0030.01314.82
7.3.90.0030.01314.81
7.3.80.0060.00914.94
7.3.70.0060.00614.89
7.3.60.0080.00314.82
7.3.50.0040.00714.61
7.3.40.0000.01414.72
7.3.30.0090.00614.86
7.3.20.0090.00616.49
7.3.10.0070.00516.62
7.3.00.0060.00516.73
7.2.330.0140.00316.53
7.2.320.0090.00916.66
7.2.310.0090.01416.42
7.2.300.0180.00016.39
7.2.290.0080.01216.54
7.2.250.0110.00715.25
7.2.240.0100.01014.87
7.2.230.0120.00315.09
7.2.220.0110.00314.86
7.2.210.0040.01115.10
7.2.200.0000.01515.08
7.2.190.0130.00014.88
7.2.180.0060.00615.09
7.2.170.0070.01015.09
7.2.130.0130.00316.90
7.2.120.0030.00716.49
7.2.110.0030.00616.57
7.2.100.0120.00416.91
7.2.90.0080.00816.69
7.2.80.0180.00716.76
7.2.70.0070.00316.42
7.2.60.0070.00716.69
7.2.50.0110.01016.91
7.2.40.0030.01316.90
7.2.30.0140.00816.82
7.2.20.0100.01016.89
7.2.10.0160.01316.66
7.2.00.0140.00818.12
7.1.330.0060.00915.70
7.1.320.0030.01015.64
7.1.310.0040.01115.62
7.1.300.0090.00615.57
7.1.290.0000.01015.80
7.1.280.0040.00715.70
7.1.270.0110.00015.44
7.1.260.0000.01115.68
7.1.250.0110.00015.58
7.1.200.0030.01215.79
7.1.100.0060.00617.97
7.1.70.0000.00717.05
7.1.60.0070.01819.42
7.1.50.0160.00616.80
7.1.00.0000.08022.34
7.0.200.0060.00616.67
7.0.60.0070.06319.95
7.0.50.0000.04317.84
7.0.40.0000.05019.96
7.0.30.0200.05320.16
7.0.20.0330.07020.10
7.0.10.0100.07720.12
7.0.00.0000.09020.18
5.6.280.0030.06321.16
5.6.210.0030.07320.56
5.6.200.0070.06718.15
5.6.190.0070.08320.57
5.6.180.0470.07020.42
5.6.170.0200.08320.51
5.6.160.0070.08320.71
5.6.150.0070.09018.18
5.6.140.0070.06718.12
5.6.130.0000.06318.20
5.6.120.0070.07721.14
5.6.110.0100.06321.12
5.6.100.0130.05720.96
5.6.90.0070.05720.98
5.6.80.0000.04720.41
5.5.350.0130.03320.50
5.5.340.0070.06718.09
5.5.330.0030.09020.21
5.5.320.0300.07720.37
5.5.310.0300.07720.19
5.5.300.0070.04717.98
5.5.290.0170.07018.03
5.5.280.0000.07720.73
5.5.270.0230.07320.73
5.5.260.0100.07020.90
5.5.250.0100.04320.50
5.5.240.0070.06720.36
5.4.450.0730.07319.63
5.4.440.0570.05019.72
5.4.430.0500.04719.60
5.4.420.0370.06319.46
5.4.410.0670.05719.57
5.4.400.0700.04019.16
5.4.390.0600.05019.14
5.4.380.0500.06319.14
5.4.370.0600.05719.30
5.4.360.0600.04319.16
5.4.350.0570.05019.01
5.4.340.0400.05319.29
5.4.320.0630.06319.16
5.4.310.0500.05719.15
5.4.300.0630.05019.12
5.4.290.0500.06019.28
5.4.280.0630.06319.10
5.4.270.1030.05319.27
5.4.260.0630.05019.07
5.4.250.0500.05719.22
5.4.240.0700.04719.30
5.4.230.0600.05019.36
5.4.220.0570.05019.30
5.4.210.0700.04719.15
5.4.200.0500.05016.95
5.4.190.0770.05019.10
5.4.180.0330.04718.90
5.4.170.0570.05019.25
5.4.160.0670.03319.07
5.4.150.0400.06018.84
5.4.140.0470.05316.38
5.4.130.0500.04316.48
5.4.120.0400.05316.47
5.4.110.0730.05016.53
5.4.100.0670.05016.53
5.4.90.0600.05016.53
5.4.80.0130.05716.30
5.4.70.0170.06016.39
5.4.60.0400.06316.28
5.4.50.0370.06016.29
5.4.40.0170.04716.36
5.4.30.0600.03716.45
5.4.20.0570.06016.43
5.4.10.0570.04716.28
5.4.00.0530.05715.75
5.3.290.0570.05714.57
5.3.280.0500.04714.61
5.3.270.0630.05314.85
5.3.260.0630.05014.66
5.3.250.0500.05014.47
5.3.240.0730.04314.83
5.3.230.0830.03714.65
5.3.220.0870.05714.56
5.3.210.0830.06014.58
5.3.200.0730.04714.56
5.3.190.0470.05714.63
5.3.180.0800.07014.62
5.3.170.0930.05714.62
5.3.160.0630.05714.65
5.3.150.0800.06714.48
5.3.140.0570.05314.47
5.3.130.0600.05014.46
5.3.120.0770.05014.70
5.3.110.0630.07314.46
5.3.100.0600.05314.28
5.3.90.0600.05313.93
5.3.80.0670.04314.03
5.3.70.0830.03713.93
5.3.60.0570.04714.25
5.3.50.0570.05314.01
5.3.40.0170.05313.86
5.3.30.0900.05013.82
5.3.20.0570.05313.71
5.3.10.0700.04013.67
5.3.00.0670.04713.55
5.2.170.0600.04011.01
5.2.160.0100.04311.18
5.2.150.0300.04311.02
5.2.140.0630.04011.30
5.2.130.0600.04011.34
5.2.120.0400.04711.26
5.2.110.0530.04311.02
5.2.100.0600.04011.20
5.2.90.0530.04311.13
5.2.80.0570.04711.25
5.2.70.0470.04311.02
5.2.60.0200.05011.20
5.2.50.0330.03010.93
5.2.40.0530.05011.00
5.2.30.0600.03310.89
5.2.20.0600.03711.02
5.2.10.0500.04011.09
5.2.00.0330.04310.73
5.1.60.0400.0309.93
5.1.50.0500.02010.08
5.1.40.0400.03310.00
5.1.30.0530.04010.35
5.1.20.0470.05010.23
5.1.10.0500.04310.00
5.1.00.0470.0339.91
5.0.50.0370.0178.46
5.0.40.0200.0308.34
5.0.30.0230.0378.21
5.0.20.0230.0278.21
5.0.10.0170.0308.24
5.0.00.0130.0438.18
4.4.90.0200.0235.89
4.4.80.0170.0235.83
4.4.70.0100.0235.87
4.4.60.0230.0235.74
4.4.50.0230.0205.93
4.4.40.0200.0375.76
4.4.30.0370.0135.84
4.4.20.0130.0205.91
4.4.10.0230.0235.82
4.4.00.0200.0375.86
4.3.110.0300.0305.86
4.3.100.0300.0175.80
4.3.90.0330.0175.67
4.3.80.0170.0375.65
4.3.70.0200.0205.74
4.3.60.0200.0235.73
4.3.50.0200.0275.65
4.3.40.0130.0375.64
4.3.30.0100.0174.47
4.3.20.0030.0274.45
4.3.10.0100.0204.37
4.3.00.0000.0237.42

preferences:
56.81 ms | 401 KiB | 5 Q