3v4l.org

run code in 300+ PHP versions simultaneously
<?php $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } echo $randomString;

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)
7.2.00.0090.00319.46
7.1.70.0030.01316.73
7.1.60.0100.01419.40
7.1.50.0040.01816.86
7.1.00.0070.07022.57
7.0.200.0660.00314.82
7.0.140.0000.07722.16
7.0.120.0030.07322.15
7.0.60.0270.06020.00
7.0.50.0100.08017.80
7.0.40.0230.04320.03
7.0.30.0270.07020.20
7.0.20.0200.06320.19
7.0.10.0300.06020.11
7.0.00.0270.07020.23
5.6.280.0000.07720.98
5.6.210.0030.08320.46
5.6.200.0100.03718.21
5.6.190.0230.08320.61
5.6.180.0330.04020.43
5.6.170.0370.07320.36
5.6.160.0130.04720.57
5.6.150.0200.06020.11
5.6.140.0200.08320.28
5.6.130.0230.05320.46
5.6.120.0330.07320.13
5.6.110.0200.06320.45
5.6.100.0370.04720.17
5.6.90.0170.08320.32
5.6.80.0330.04719.57
5.6.70.0230.05319.81
5.6.60.0200.08319.55
5.6.50.0300.07019.82
5.6.40.0230.03319.69
5.6.30.0370.07019.73
5.6.20.0270.07719.79
5.6.10.0200.08319.81
5.6.00.0170.06319.52
5.5.350.0030.08720.31
5.5.340.0170.07317.97
5.5.330.0200.07020.34
5.5.320.0270.07720.41
5.5.310.0230.06020.43
5.5.300.0170.06020.20
5.5.290.0270.07720.18
5.5.280.0300.07320.21
5.5.270.0230.07020.23
5.5.260.0230.06720.25
5.5.250.0300.05020.02
5.5.240.0170.08319.52
5.5.230.0170.08319.29
5.5.220.0230.04719.29
5.5.210.0370.08319.28
5.5.200.0200.04719.48
5.5.190.0200.06719.33
5.5.180.0200.06319.59
5.5.160.0230.07019.52
5.5.150.0400.05719.33
5.5.140.0370.05019.58
5.5.130.0270.05719.27
5.5.120.0270.07719.27
5.5.110.0200.04719.47
5.5.100.0270.07319.33
5.5.90.0270.04019.32
5.5.80.0200.05319.45
5.5.70.0330.06319.41
5.5.60.0270.07719.21
5.5.50.0200.05019.14
5.5.40.0230.07319.36
5.5.30.0270.06319.32
5.5.20.0370.06019.31
5.5.10.0200.05319.25
5.5.00.0270.07719.32
5.4.450.0200.07319.14
5.4.440.0200.07319.44
5.4.430.0200.05719.24
5.4.420.0200.07719.46
5.4.410.0130.05319.28
5.4.400.0200.07718.94
5.4.390.0300.05018.92
5.4.380.0200.07719.11
5.4.370.0230.07019.15
5.4.360.0300.04718.81
5.4.350.0170.04319.09
5.4.340.0330.05019.18
5.4.320.0270.05719.15
5.4.310.0200.04719.09
5.4.300.0270.06718.79
5.4.290.0200.07319.08
5.4.280.0300.06319.18
5.4.270.0200.06019.00
5.4.260.0170.04718.82
5.4.250.0230.03318.96
5.4.240.0270.06018.78
5.4.230.0330.06019.07
5.4.220.0230.07319.04
5.4.210.0170.06019.09
5.4.200.0230.07719.11
5.4.190.0270.06018.78
5.4.180.0330.05018.91
5.4.170.0200.07319.13
5.4.160.0270.07019.16
5.4.150.0270.07319.05
5.4.140.0230.07016.26
5.4.130.0200.04716.34
5.4.120.0300.03016.20
5.4.110.0270.04016.35
5.4.100.0230.06716.38
5.4.90.0330.06016.38
5.4.80.0330.04316.26
5.4.70.0230.04316.25
5.4.60.0230.04316.36
5.4.50.0300.07716.28
5.4.40.0330.04016.58
5.4.30.0100.05016.58
5.4.20.0170.06716.21
5.4.10.0300.05316.24
5.4.00.0270.03715.73
5.3.290.0170.08314.68
5.3.280.0370.06014.53
5.3.270.0300.05714.62
5.3.260.0300.07014.48
5.3.250.0400.06014.55
5.3.240.0200.07314.68
5.3.230.0200.06714.57
5.3.220.0200.04314.50
5.3.210.0170.06314.51
5.3.200.0200.07014.54
5.3.190.0200.06314.49
5.3.180.0230.06314.51
5.3.170.0200.07314.53
5.3.160.0200.03714.46
5.3.150.0200.04714.65
5.3.140.0270.06714.37
5.3.130.0230.07014.49
5.3.120.0200.06314.63
5.3.110.0200.05714.50
5.3.100.0300.06313.97
5.3.90.0330.06313.97
5.3.80.0270.06314.11
5.3.70.0200.05713.94
5.3.60.0200.05013.81
5.3.50.0200.05713.89
5.3.40.0270.07713.88
5.3.30.0200.03313.85
5.3.20.0200.07313.62
5.3.10.0400.06013.47
5.3.00.0270.04013.60
5.2.170.0100.04012.68
5.2.160.0170.04312.68
5.2.150.0130.04712.68
5.2.140.0170.03712.68
5.2.130.0270.05012.68
5.2.120.0200.03012.68
5.2.110.0230.05312.68
5.2.100.0270.05312.68
5.2.90.0130.04312.68
5.2.80.0200.04012.68
5.2.70.0200.05012.68
5.2.60.0230.06012.68
5.2.50.0230.05712.68
5.2.40.0170.06312.68
5.2.30.0130.06012.68
5.2.20.0400.04712.68
5.2.10.0170.05712.68
5.2.00.0100.04012.68
5.1.60.0170.05012.68
5.1.50.0200.05012.68
5.1.40.0100.04012.68
5.1.30.0270.06312.68
5.1.20.0100.04012.68
5.1.10.0130.05312.68
5.1.00.0130.05712.68
5.0.50.0070.04312.68
5.0.40.0100.04312.68
5.0.30.0100.06712.68
5.0.20.0130.03312.68
5.0.10.0070.04712.68
5.0.00.0030.05012.68
4.4.90.0070.03712.68
4.4.80.0070.03712.68
4.4.70.0100.03012.68
4.4.60.0070.02712.68
4.4.50.0070.03012.68
4.4.40.0100.05012.68
4.4.30.0100.03012.68
4.4.20.0200.02712.68
4.4.10.0100.02712.68
4.4.00.0200.03712.68
4.3.110.0070.03012.68
4.3.100.0070.02312.68
4.3.90.0030.02312.68
4.3.80.0030.03312.68
4.3.70.0070.03312.68
4.3.60.0070.03312.68
4.3.50.0070.02312.68
4.3.40.0030.03312.68
4.3.30.0000.01712.68
4.3.20.0000.02312.68
4.3.10.0030.02012.68
4.3.00.0030.02312.68

preferences:
36.34 ms | 400 KiB | 5 Q