3v4l.org

run code in 300+ PHP versions simultaneously
<?php $alpha = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; $length = 11; $ran = rand(0, strlen($alpha)); $key = substr($alpha, $ran); echo $key; ?>

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)
7.4.00.0040.01415.02
7.3.120.0000.01714.70
7.3.110.0000.01814.69
7.3.100.0110.00414.70
7.3.90.0040.00814.54
7.3.80.0110.00414.70
7.3.70.0090.00614.76
7.3.60.0080.00814.46
7.3.50.0030.00914.70
7.3.40.0100.00714.80
7.3.30.0030.00914.78
7.3.20.0060.00616.31
7.3.10.0050.00816.53
7.3.00.0040.00916.68
7.2.250.0090.00914.74
7.2.240.0130.00715.00
7.2.230.0070.01014.56
7.2.220.0030.00914.90
7.2.210.0040.01114.91
7.2.200.0070.01014.87
7.2.190.0090.00914.68
7.2.180.0060.01014.87
7.2.170.0040.01114.87
7.2.130.0050.00916.84
7.2.120.0080.00416.74
7.2.110.0080.00616.90
7.2.100.0020.01116.80
7.2.90.0020.01016.73
7.2.80.0020.01216.81
7.2.70.0060.01016.96
7.2.60.0050.00816.99
7.2.50.0020.01216.82
7.2.40.0010.00716.83
7.2.30.0040.00616.85
7.2.20.0060.00716.63
7.2.10.0050.00616.86
7.2.00.0030.01117.64
7.1.330.0110.00415.72
7.1.320.0060.00915.72
7.1.310.0030.00615.87
7.1.300.0060.00915.47
7.1.290.0040.01115.75
7.1.280.0080.00815.64
7.1.270.0030.01315.88
7.1.260.0000.01315.63
7.1.250.0030.01215.57
7.1.70.0060.00317.25
7.1.60.0130.01019.40
7.1.50.0120.01217.02
7.1.00.0000.03722.45
7.0.200.0030.00316.58
7.0.140.0030.07322.00
7.0.120.0030.08022.03
7.0.110.0030.05321.91
7.0.100.0000.04722.11
7.0.90.0030.07722.13
7.0.80.0000.04321.98
7.0.70.0130.04022.04
7.0.60.0070.04022.05
7.0.50.0100.03722.13
7.0.40.0030.04020.02
7.0.30.0030.04020.01
7.0.20.0000.04320.15
7.0.10.0030.05020.05
7.0.00.0070.04720.02
5.6.280.0030.07320.77
5.6.270.0100.07721.07
5.6.260.0070.04720.74
5.6.250.0070.03720.92
5.6.240.0130.03720.75
5.6.230.0070.04320.80
5.6.220.0100.03721.03
5.6.210.0100.03720.89
5.6.200.0070.05321.00
5.6.190.0070.03321.02
5.6.180.0000.04020.97
5.6.170.0070.03720.84
5.6.160.0070.04320.87
5.6.150.0030.06320.87
5.6.140.0070.03721.02
5.6.130.0030.04320.69
5.6.120.0000.04721.02
5.6.110.0030.05020.75
5.6.100.0000.04321.01
5.6.90.0030.04320.67
5.6.80.0070.04020.41
5.6.70.0030.03720.35
5.6.60.0000.04020.36
5.6.50.0000.04320.18
5.6.40.0030.03720.34
5.6.30.0070.07020.12
5.6.20.0030.04320.33
5.6.10.0000.07720.32
5.6.00.0000.05320.37
5.5.380.0030.04317.62
5.5.370.0000.04317.62
5.5.360.0100.05717.61
5.5.350.0030.03317.54
5.5.340.0000.07317.98
5.5.330.0000.04017.87
5.5.320.0070.03017.86
5.5.310.0030.04318.13
5.5.300.0030.03717.83
5.5.290.0100.03317.98
5.5.280.0030.05317.85
5.5.270.0000.04317.85
5.5.260.0030.05317.76
5.5.250.0030.03717.80
5.5.240.0000.03717.54
5.5.230.0030.03717.25
5.5.220.0070.03317.50
5.5.210.0030.03317.48
5.5.200.0030.03717.48
5.5.190.0000.07317.11
5.5.180.0030.04017.24
5.5.160.0000.07717.34
5.5.150.0070.07317.37
5.5.140.0000.05017.52
5.5.130.0100.04717.46
5.5.120.0070.05317.44
5.5.110.0030.04317.44
5.5.100.0070.07717.11
5.5.90.0070.07017.09
5.5.80.0000.07317.34
5.5.70.0100.05717.41
5.5.60.0030.06017.41
5.5.50.0000.07317.39
5.5.40.0030.07317.09
5.5.30.0030.04717.10
5.5.20.0070.07017.24
5.5.10.0030.07317.26
5.5.00.0000.04017.33
5.4.450.0070.03719.30
5.4.440.0030.04319.30
5.4.430.0000.04019.54
5.4.420.0070.03319.25
5.4.410.0000.03719.10
5.4.400.0030.03319.05
5.4.390.0030.03718.96
5.4.380.0030.03319.07
5.4.370.0000.03718.96
5.4.360.0030.04319.12
5.4.350.0030.06018.99
5.4.340.0030.05719.05
5.4.320.0030.07019.05
5.4.310.0070.06318.95
5.4.300.0030.07318.93
5.4.290.0030.06318.97
5.4.280.0030.06719.06
5.4.270.0070.04319.22
5.4.260.0100.03018.99
5.4.250.0030.05719.06
5.4.240.0030.06318.97
5.4.230.0070.05319.21
5.4.220.0030.03718.95
5.4.210.0030.07318.97
5.4.200.0070.07319.05
5.4.190.0070.06718.92
5.4.180.0030.06019.12
5.4.170.0030.04319.02
5.4.160.0000.06019.18
5.4.150.0070.07719.05
5.4.140.0000.08016.42
5.4.130.0000.03316.16
5.4.120.0000.04016.17
5.4.110.0070.05716.49
5.4.100.0100.06316.45
5.4.90.0100.06716.23
5.4.80.0030.07016.32
5.4.70.0100.06316.52
5.4.60.0000.03716.43
5.4.50.0030.05316.28
5.4.40.0030.03016.34
5.4.30.0030.07316.20
5.4.20.0000.07016.41
5.4.10.0000.07316.29
5.4.00.0030.04315.88
5.3.290.0030.05314.73
5.3.280.0030.04314.48
5.3.270.0000.06014.39
5.3.260.0030.07714.66
5.3.250.0000.05714.62
5.3.240.0000.06314.63
5.3.230.0030.05314.44
5.3.220.0000.03714.45
5.3.210.0000.03714.46
5.3.200.0030.05714.39
5.3.190.0070.07314.39
5.3.180.0030.03314.48
5.3.170.0030.06714.50
5.3.160.0030.03314.49
5.3.150.0030.07714.38
5.3.140.0070.06314.44
5.3.130.0030.06714.42
5.3.120.0030.07314.42
5.3.110.0000.05714.56
5.3.100.0100.05713.91
5.3.90.0030.07013.80
5.3.80.0070.05313.91
5.3.70.0130.06313.95
5.3.60.0030.07313.79
5.3.50.0000.05713.87
5.3.40.0030.06713.80
5.3.30.0070.05713.91
5.3.20.0000.04713.47
5.3.10.0000.07013.75
5.3.00.0030.06713.58
5.2.170.0070.03011.94
5.2.160.0070.05711.94
5.2.150.0030.05011.94
5.2.140.0030.05711.94
5.2.130.0000.06711.94
5.2.120.0070.05711.94
5.2.110.0030.06011.94
5.2.100.0000.06311.94
5.2.90.0030.05011.94
5.2.80.0070.05311.94
5.2.70.0070.05011.94
5.2.60.0030.06311.94
5.2.50.0030.06011.94
5.2.40.0100.05311.94
5.2.30.0030.06311.94
5.2.20.0070.05711.94
5.2.10.0030.03311.94
5.2.00.0000.06311.94
5.1.60.0070.04711.94
5.1.50.0070.04011.94
5.1.40.0070.03711.94
5.1.30.0030.05011.94
5.1.20.0000.04311.94
5.1.10.0000.05311.94
5.1.00.0030.02711.94
5.0.50.0030.04011.94
5.0.40.0030.03011.94
5.0.30.0070.05011.94
5.0.20.0000.04711.94
5.0.10.0070.03311.94
5.0.00.0000.05011.94
4.4.90.0030.01711.94
4.4.80.0030.02311.94
4.4.70.0000.03711.94
4.4.60.0000.03711.94
4.4.50.0000.03011.94
4.4.40.0000.02711.94
4.4.30.0000.02711.94
4.4.20.0030.02711.94
4.4.10.0000.03311.94
4.4.00.0030.02311.94
4.3.110.0000.03311.94
4.3.100.0000.02011.94
4.3.90.0030.03311.94
4.3.80.0030.05011.94
4.3.70.0000.02711.94
4.3.60.0000.03011.94
4.3.50.0000.02011.94
4.3.40.0000.04711.94
4.3.30.0000.04011.94
4.3.20.0030.01711.94
4.3.10.0000.03711.94
4.3.00.0000.02311.94

preferences:
40.5 ms | 401 KiB | 5 Q