3v4l.org

run code in 300+ PHP versions simultaneously
<?php $randomlettersnumbers = str_shuffle('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'); //creates a shuffled alphanumeric string $randomlettersnumbers2 = str_shuffle('0123456789!@#$%^&*()_+{}:|\<>?'); //creates a shuffled alphanumeric string $randcomb = $randomlettersnumbers.$randomlettersnumbers2; for($i = 0; $i <= 62; $i += 6) { //loop to calculate parameters for substr $param1 = ($i+6) - 6; //this formula ensures all integers are positive and above zero $param2 = $param1 + 6; // this formula ensures all integers increment by 6 spaces if($param2 >= 60) { //since the second parameter goes over 60 $param2 = ($param1 + 6) - 6; //subtract 6 } $key = substr($randcomb, $param1, $param2); //generate random key echo $key."<BR>"; //display it for debugging }

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)
7.2.110.0130.00316.63
7.2.100.0000.01316.63
7.2.90.0030.01316.88
7.2.80.0090.00616.61
7.2.70.0030.01016.84
7.2.60.0100.00617.01
7.2.50.0040.00716.98
7.2.40.0480.01317.01
7.2.30.0580.00316.67
7.2.20.0540.01516.90
7.2.10.0330.00216.92
7.2.00.0510.00716.89
7.1.230.0110.00015.88
7.1.220.0030.01015.57
7.1.210.0090.00615.82
7.1.200.0100.00316.05
7.1.190.0030.01315.93
7.1.180.0050.00515.65
7.1.170.0180.00915.80
7.1.160.0330.01215.55
7.1.150.0330.00715.83
7.1.140.0590.01215.58
7.1.130.0540.00415.87
7.1.120.0430.00715.66
7.1.110.0350.00515.70
7.1.100.0460.00915.64
7.1.90.0370.01515.50
7.1.80.0330.01215.50
7.1.70.0140.00416.29
7.1.60.0130.01417.89
7.1.50.0130.01616.34
7.1.40.0250.00815.82
7.1.30.0140.01715.60
7.1.20.0240.01015.57
7.1.10.0110.01215.62
7.1.00.0080.05019.13
7.0.310.0040.00815.56
7.0.300.0240.00815.06
7.0.290.0290.01315.14
7.0.280.0320.00615.36
7.0.270.0310.00715.36
7.0.260.0300.00415.35
7.0.250.0400.00315.46
7.0.240.0290.00515.42
7.0.230.0540.00415.25
7.0.220.0490.00815.23
7.0.210.0070.01815.38
7.0.200.0080.00916.09
7.0.190.0190.00715.46
7.0.180.0130.01315.21
7.0.170.0170.00815.16
7.0.160.0110.01415.48
7.0.150.0180.00915.54
7.0.140.0060.04618.67
7.0.130.0160.01015.61
7.0.120.0150.00715.40
7.0.110.0110.01115.52
7.0.100.0190.00915.12
7.0.90.0200.00415.52
7.0.80.0120.01215.36
7.0.70.0130.04518.59
7.0.60.0110.02918.63
7.0.50.0120.04218.67
7.0.40.0160.03916.84
7.0.30.0130.04116.86
7.0.20.0100.04916.78
7.0.10.0080.05116.75
7.0.00.0070.04716.66
5.6.380.0120.00313.89
5.6.370.0160.00514.67
5.6.360.0360.00013.98
5.6.350.0300.01114.32
5.6.340.0420.00914.16
5.6.330.0270.02114.53
5.6.320.0260.01514.45
5.6.310.0190.01214.62
5.6.300.0190.00714.42
5.6.290.0090.01314.14
5.6.280.0110.03917.65
5.6.270.0110.01514.50
5.6.260.0210.00414.07
5.6.250.0160.00414.25
5.6.240.0140.01014.28
5.6.230.0170.00714.18
5.6.220.0120.04317.51
5.6.210.0100.04417.35
5.6.200.0140.03217.74
5.6.190.0100.04917.76
5.6.180.0110.04317.75
5.6.170.0090.04917.73
5.6.160.0110.04217.60
5.6.150.0100.04717.64
5.6.140.0080.04217.66
5.6.130.0140.04517.76
5.6.120.0090.04517.56
5.6.110.0160.04317.55
5.6.100.0160.03817.63
5.6.90.0100.04517.80
5.6.80.0110.04417.52
5.6.70.0070.04517.45
5.6.60.0050.04717.34
5.6.50.0110.04217.48
5.6.40.0120.03317.37
5.6.30.0130.03517.19
5.6.20.0080.03417.38
5.6.10.0100.03717.24
5.6.00.0110.03717.48
5.5.380.0070.01111.00
5.5.370.0090.00911.06
5.5.360.0120.04015.84
5.5.350.0120.04215.63
5.5.340.0150.03815.93
5.5.330.0080.04516.04
5.5.320.0080.04516.16
5.5.310.0120.03815.91
5.5.300.0080.04315.81
5.5.290.0110.04516.07
5.5.280.0140.04016.06
5.5.270.0120.04116.05
5.5.260.0060.04816.00
5.5.250.0070.04516.00
5.5.240.0030.04515.56
5.5.230.0060.02915.72
5.5.220.0080.04215.68
5.5.210.0070.04415.67
5.5.200.0070.03815.46
5.5.190.0130.03815.49
5.5.180.0080.03515.65
5.5.170.0050.01614.15
5.5.160.0060.04315.66
5.5.150.0070.04315.47
5.5.140.0120.03915.48
5.5.130.0080.03815.76
5.5.120.0070.04215.63
5.5.110.0060.04115.51
5.5.100.0120.04115.55
5.5.90.0060.04215.56
5.5.80.0090.03715.47
5.5.70.0050.02715.60
5.5.60.0100.03915.51
5.5.50.0100.03815.65
5.5.40.0070.04415.49
5.5.30.0070.03215.45
5.5.20.0190.03815.54
5.5.10.0160.03415.48
5.5.00.0100.04515.42
5.4.450.0100.04115.37
5.4.440.0050.04614.93
5.4.430.0050.03415.28
5.4.420.0070.03615.16
5.4.410.0090.03915.03
5.4.400.0050.02515.00
5.4.390.0100.03814.91
5.4.380.0040.02815.02
5.4.370.0060.03815.00
5.4.360.0110.04015.03
5.4.350.0080.02315.08
5.4.340.0100.03815.14
5.4.330.0110.00410.84
5.4.320.0090.04015.13
5.4.310.0100.03715.03
5.4.300.0050.04514.89
5.4.290.0100.02314.98
5.4.280.0060.03315.13
5.4.270.0050.04415.04
5.4.260.0170.03614.93
5.4.250.0050.03815.04
5.4.240.0080.03415.01
5.4.230.0100.03714.99
5.4.220.0090.04215.04
5.4.210.0120.04014.77
5.4.200.0080.03215.01
5.4.190.0080.02914.95
5.4.180.0120.03815.04
5.4.170.0100.04215.09
5.4.160.0080.03315.15
5.4.150.0120.04215.01
5.4.140.0100.03413.71
5.4.130.0080.02713.73
5.4.120.0090.03713.80
5.4.110.0140.03813.57
5.4.100.0100.03213.64
5.4.90.0090.03813.64
5.4.80.0050.03413.64
5.4.70.0120.03813.77
5.4.60.0100.03913.53
5.4.50.0070.02613.70
5.4.40.0140.03713.75
5.4.30.0080.03813.60
5.4.20.0130.03213.49
5.4.10.0100.04213.66
5.4.00.0160.03713.36
5.3.290.0080.04112.54
5.3.280.0090.03812.49
5.3.270.0120.02812.61
5.3.260.0100.03612.55
5.3.250.0080.04112.42
5.3.240.0100.03612.50
5.3.230.0060.02612.46
5.3.220.0100.03812.47
5.3.210.0140.03212.46
5.3.200.0090.04112.44
5.3.190.0100.04212.43
5.3.180.0150.02712.52
5.3.170.0070.03112.40
5.3.160.0130.04112.51
5.3.150.0110.03412.52
5.3.140.0100.02012.42
5.3.130.0100.03312.51
5.3.120.0140.03812.53
5.3.110.0080.04012.45
5.3.100.0040.04412.19
5.3.90.0100.03712.17
5.3.80.0060.04012.18
5.3.70.0120.03512.13
5.3.60.0090.04112.16
5.3.50.0080.03812.13
5.3.40.0100.04112.16
5.3.30.0090.03712.18
5.3.20.0150.03111.96
5.3.10.0070.03712.01
5.3.00.0080.03312.01
5.2.170.0090.02311.30
5.2.160.0080.03311.30
5.2.150.0040.03411.30
5.2.140.0070.02911.30
5.2.130.0110.02811.30
5.2.120.0090.03311.30
5.2.110.0080.03211.30
5.2.100.0100.03011.30
5.2.90.0100.03211.30
5.2.80.0080.03611.30
5.2.70.0050.03011.30
5.2.60.0090.02711.30
5.2.50.0060.03211.30
5.2.40.0050.03011.30
5.2.30.0080.02011.30
5.2.20.0090.02211.30
5.2.10.0080.02711.30
5.2.00.0100.02811.30
5.1.60.0080.02511.30
5.1.50.0020.02911.30
5.1.40.0070.02511.30
5.1.30.0000.03211.30
5.1.20.0060.02211.30
5.1.10.0060.02211.30
5.1.00.0030.03111.30
5.0.50.0070.02111.30
5.0.40.0120.01811.30
5.0.30.0040.03511.30
5.0.20.0050.02311.30
5.0.10.0020.02711.30
5.0.00.0030.03311.30
4.4.90.0070.01811.30
4.4.80.0020.01611.30
4.4.70.0030.01711.30
4.4.60.0000.01911.30
4.4.50.0040.01411.30
4.4.40.0020.03111.30
4.4.30.0020.02011.30
4.4.20.0020.02111.30
4.4.10.0050.01811.30
4.4.00.0070.02611.30
4.3.110.0020.01911.30
4.3.100.0060.01811.30
4.3.90.0040.01711.30
4.3.80.0000.03011.30
4.3.70.0040.01811.30
4.3.60.0030.02011.30
4.3.50.0030.01711.30
4.3.40.0040.02211.30
4.3.30.0000.02211.30
4.3.20.0070.01711.30
4.3.10.0040.02011.30
4.3.00.0020.02211.30

preferences:
37.47 ms | 401 KiB | 5 Q