3v4l.org

run code in 300+ PHP versions simultaneously
<?php function randomString($length=10,$symbols=false) { $grabbag = "abcdefghijklmnopqrstuvwxyz0123456789"; if ($symbols) { $grabbag .= '!@#$%^&*()_+{}-=[]|\\:";\'<,>.?/~`'; } $string = ''; $len = strlen($grabbag)-1; while ($length--) { $char = $grabbag[rand(0,$len)]; if (rand(0,1)) { $char = strtoupper($char); } $string .= $char; } return $string; } echo randomString(20,true);

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)
7.3.10.0040.01116.63
7.3.00.0060.00916.76
7.2.130.0060.00617.09
7.2.120.0030.00717.00
7.2.110.0000.01217.11
7.2.100.0060.00616.86
7.2.90.0000.01317.17
7.2.80.0030.00717.15
7.2.70.0040.00416.80
7.2.60.0090.00917.11
7.2.50.0090.00616.93
7.2.40.0040.00816.80
7.2.30.0080.00416.95
7.2.20.0080.00316.97
7.2.10.0090.00617.00
7.2.00.0050.00918.26
7.1.250.0030.00915.76
7.1.70.0000.00817.29
7.1.60.0030.02019.40
7.1.50.0060.00617.01
7.1.00.0030.05722.57
7.0.200.0030.00716.59
7.0.140.0030.07322.18
7.0.60.0230.04319.90
7.0.50.0000.04317.87
7.0.40.0000.06020.13
7.0.30.0030.07020.21
7.0.20.0000.07720.02
7.0.10.0030.06720.11
7.0.00.0000.08720.22
5.6.280.0070.07020.89
5.6.210.0170.06720.44
5.6.200.0170.07318.25
5.6.190.0030.07020.39
5.6.180.0030.04320.50
5.6.170.0070.07720.48
5.6.160.0030.08720.47
5.6.150.0070.07720.32
5.6.140.0070.08020.33
5.6.130.0030.08720.50
5.6.120.0070.06720.21
5.6.110.0070.08720.16
5.6.100.0070.06720.31
5.6.90.0000.08320.16
5.6.80.0100.07319.56
5.6.70.0030.08019.78
5.6.60.0070.07019.80
5.6.50.0030.08319.91
5.6.40.0030.08719.80
5.6.30.0030.07319.53
5.6.20.0000.08019.70
5.6.10.0100.04719.76
5.6.00.0070.05719.54
5.5.350.0200.08320.50
5.5.340.0070.08017.95
5.5.330.0270.06020.30
5.5.320.0030.04020.55
5.5.310.0100.07720.35
5.5.300.0030.04320.33
5.5.290.0070.07319.97
5.5.280.0100.04320.21
5.5.270.0130.07719.93
5.5.260.0000.04720.15
5.5.250.0030.05719.80
5.5.240.0030.08319.36
5.5.230.0000.07719.52
5.5.220.0000.08319.37
5.5.210.0000.08719.52
5.5.200.0030.06019.35
5.5.190.0270.05719.56
5.5.180.0030.06719.55
5.5.160.0100.05719.34
5.5.150.0270.06319.58
5.5.140.0000.07019.33
5.5.130.0100.06719.34
5.5.120.0000.07019.56
5.5.110.0130.05319.66
5.5.100.0000.05719.21
5.5.90.0000.04719.46
5.5.80.0000.04319.46
5.5.70.0000.05719.23
5.5.60.0030.04319.44
5.5.50.0000.08019.55
5.5.40.0100.06719.27
5.5.30.0070.07719.28
5.5.20.0070.07719.46
5.5.10.0100.07019.21
5.5.00.0100.07019.45
5.4.450.0070.07019.20
5.4.440.0030.04019.53
5.4.430.0030.08019.57
5.4.420.0030.03719.59
5.4.410.0030.05319.44
5.4.400.0000.07019.25
5.4.390.0100.06718.98
5.4.380.0070.08019.12
5.4.370.0030.04319.24
5.4.360.0100.07019.15
5.4.350.0030.06718.88
5.4.340.0030.06719.24
5.4.320.0030.08018.95
5.4.310.0030.07019.03
5.4.300.0030.07719.24
5.4.290.0030.06318.93
5.4.280.0100.06018.88
5.4.270.0030.07019.15
5.4.260.0070.07019.24
5.4.250.0000.08019.15
5.4.240.0070.07319.25
5.4.230.0030.07719.14
5.4.220.0170.05719.15
5.4.210.0000.07019.24
5.4.200.0000.07718.83
5.4.190.0070.07718.84
5.4.180.0030.07319.14
5.4.170.0070.07319.07
5.4.160.0000.07718.96
5.4.150.0100.07718.87
5.4.140.0030.07016.29
5.4.130.0070.07016.43
5.4.120.0070.07316.41
5.4.110.0000.06016.30
5.4.100.0030.03716.42
5.4.90.0100.06016.45
5.4.80.0070.06716.36
5.4.70.0070.06316.41
5.4.60.0100.06316.45
5.4.50.0000.08016.43
5.4.40.0030.07016.47
5.4.30.0000.05016.37
5.4.20.0030.07316.39
5.4.10.0000.07716.43
5.4.00.0030.04015.94
5.3.290.0030.08314.69
5.3.280.0100.04314.73
5.3.270.0100.07314.52
5.3.260.0070.07314.52
5.3.250.0000.07014.49
5.3.240.0030.07714.66
5.3.230.0070.04714.62
5.3.220.0070.07014.58
5.3.210.0030.05014.56
5.3.200.0070.06014.57
5.3.190.0130.03014.57
5.3.180.0000.04014.59
5.3.170.0000.04714.62
5.3.160.0070.06714.55
5.3.150.0030.07714.57
5.3.140.0000.08014.58
5.3.130.0130.07314.54
5.3.120.0000.06714.59
5.3.110.0030.05314.55
5.3.100.0070.07014.04
5.3.90.0030.05714.09
5.3.80.0000.04314.09
5.3.70.0030.05313.91
5.3.60.0030.07314.01
5.3.50.0000.07714.04
5.3.40.0000.08013.87
5.3.30.0100.06313.88
5.3.20.0000.03313.73
5.3.10.0000.03713.59
5.3.00.0000.04013.56
5.2.170.0030.05312.46
5.2.160.0330.04712.46
5.2.150.0030.06012.46
5.2.140.0000.03012.46
5.2.130.0030.03012.46
5.2.120.0000.03012.46
5.2.110.0000.03012.46
5.2.100.0030.02312.46
5.2.90.0000.03312.46
5.2.80.0000.03012.46
5.2.70.0070.02712.46
5.2.60.0000.02712.46
5.2.50.0000.03012.46
5.2.40.0000.02712.46
5.2.30.0030.02712.46
5.2.20.0000.02712.46
5.2.10.0030.02712.46
5.2.00.0000.02712.46
5.1.60.0000.02712.46
5.1.50.0030.02312.46
5.1.40.0030.02312.46
5.1.30.0030.02312.46
5.1.20.0000.02712.46
5.1.10.0030.02712.46
5.1.00.0030.02012.46
5.0.50.0030.01712.46
5.0.40.0000.02012.46
5.0.30.0000.03312.46
5.0.20.0000.02012.46
5.0.10.0070.01312.46
5.0.00.0030.03012.46
4.4.90.0000.01312.46
4.4.80.0000.01312.46
4.4.70.0000.01712.46
4.4.60.0030.01312.46
4.4.50.0000.01312.46
4.4.40.0000.02312.46
4.4.30.0000.01312.46
4.4.20.0000.01712.46
4.4.10.0000.01712.46
4.4.00.0000.02312.46
4.3.110.0000.01312.46
4.3.100.0030.02012.46
4.3.90.0000.01712.46
4.3.80.0000.02312.46
4.3.70.0000.01312.46
4.3.60.0000.01312.46
4.3.50.0000.01312.46
4.3.40.0000.02312.46
4.3.30.0030.01312.46
4.3.20.0000.01312.46
4.3.10.0030.02012.46
4.3.00.0030.01712.46

preferences:
37.21 ms | 401 KiB | 5 Q