3v4l.org

run code in 300+ PHP versions simultaneously
<?php $length = 10; $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)
7.4.00.0100.01014.63
7.3.120.0050.01214.68
7.3.110.0050.01014.87
7.3.100.0050.00914.66
7.3.90.0060.00614.85
7.3.80.0070.00914.77
7.3.70.0080.00714.92
7.3.60.0070.00814.64
7.3.50.0070.00814.78
7.3.40.0090.00714.79
7.3.30.0070.00914.83
7.3.20.0070.00716.62
7.3.10.0070.00816.56
7.3.00.0080.00516.77
7.2.250.0030.01614.91
7.2.240.0070.00715.15
7.2.230.0040.01215.12
7.2.220.0050.00714.97
7.2.210.0090.00515.00
7.2.200.0050.00715.14
7.2.190.0050.00814.97
7.2.180.0050.00815.17
7.2.170.0050.00714.96
7.2.160.0120.00315.09
7.2.150.0040.01116.71
7.2.140.0090.00616.70
7.2.130.0060.00916.93
7.2.120.0070.00717.06
7.2.110.0070.01017.05
7.2.100.0040.00816.82
7.2.90.0030.01016.89
7.2.80.0070.01117.02
7.2.70.0100.00716.89
7.2.60.0030.01117.07
7.2.50.0000.01317.02
7.2.40.0050.00517.17
7.2.30.0100.00316.92
7.2.20.0030.01417.09
7.2.10.0030.01217.18
7.2.00.0050.01018.04
7.1.330.0050.01015.67
7.1.320.0080.00815.79
7.1.310.0050.00915.86
7.1.300.0040.00815.77
7.1.290.0030.00915.93
7.1.280.0070.00815.67
7.1.270.0050.00715.70
7.1.260.0080.00515.70
7.1.250.0060.00915.86
7.1.70.0000.01017.19
7.1.60.0070.01719.40
7.1.50.0240.01234.84
7.1.00.0000.05022.45
7.0.200.0230.00016.20
7.0.140.0000.07322.18
7.0.120.0070.06722.05
7.0.60.0070.05319.88
7.0.50.0030.04017.81
7.0.40.0000.05017.69
7.0.30.0170.05017.69
7.0.20.0030.04017.79
7.0.10.0070.03717.74
7.0.00.0000.04317.75
5.6.280.0030.07020.90
5.6.210.0000.07320.75
5.6.200.0030.04018.18
5.6.190.0000.04718.13
5.6.180.0030.04018.09
5.6.170.0070.03718.09
5.6.160.0030.04018.09
5.6.150.0070.03718.18
5.6.140.0030.04018.20
5.6.130.0030.04018.18
5.6.120.0170.07018.07
5.6.110.0070.04018.14
5.6.100.0070.08718.17
5.6.90.0130.07318.10
5.6.80.0100.07717.46
5.6.70.0070.07717.49
5.6.60.0130.03717.49
5.6.50.0070.04717.54
5.6.40.0100.07317.48
5.6.30.0130.06717.48
5.6.20.0030.08717.43
5.6.10.0100.07717.57
5.6.00.0130.06017.51
5.5.350.0270.07320.38
5.5.340.0030.04017.95
5.5.330.0000.04017.88
5.5.320.0030.03717.91
5.5.310.0030.04317.88
5.5.300.0030.03718.02
5.5.290.0070.07718.01
5.5.280.0100.06718.01
5.5.270.0000.06017.88
5.5.260.0070.05317.95
5.5.250.0070.04017.84
5.5.240.0070.07017.37
5.5.230.0030.07317.27
5.5.220.0030.07017.32
5.5.210.0100.08017.39
5.5.200.0070.04717.27
5.5.190.0130.07717.23
5.5.180.0070.07717.24
5.5.160.0030.08017.28
5.5.150.0030.07017.27
5.5.140.0070.07717.36
5.5.130.0030.07017.35
5.5.120.0000.07717.28
5.5.110.0100.07317.26
5.5.100.0100.07717.20
5.5.90.0070.07317.19
5.5.80.0070.04017.16
5.5.70.0100.07317.23
5.5.60.0100.06717.12
5.5.50.0100.07317.17
5.5.40.0000.08017.19
5.5.30.0030.05717.11
5.5.20.0070.03717.20
5.5.10.0130.07017.15
5.5.00.0130.06017.14
5.4.450.0030.04019.53
5.4.440.0130.04719.31
5.4.430.0030.06319.35
5.4.420.0100.07319.39
5.4.410.0070.05019.18
5.4.400.0030.08319.13
5.4.390.0100.04318.98
5.4.380.0130.07019.03
5.4.370.0070.07719.20
5.4.360.0130.07318.95
5.4.350.0070.07718.89
5.4.340.0030.08018.89
5.4.320.0070.04718.95
5.4.310.0030.04019.13
5.4.300.0070.08019.12
5.4.290.0030.06319.13
5.4.280.0070.08318.98
5.4.270.0070.06719.07
5.4.260.0100.07319.02
5.4.250.0100.07319.02
5.4.240.0030.06718.98
5.4.230.0070.05318.88
5.4.220.0030.06718.96
5.4.210.0130.06318.98
5.4.200.0070.08019.08
5.4.190.0100.07318.88
5.4.180.0100.07719.06
5.4.170.0130.07018.97
5.4.160.0070.08018.87
5.4.150.0100.05718.96
5.4.140.0030.05716.28
5.4.130.0030.05316.22
5.4.120.0070.06316.33
5.4.110.0000.06316.32
5.4.100.0030.07716.28
5.4.90.0030.07716.36
5.4.80.0070.07016.21
5.4.70.0030.04016.23
5.4.60.0030.05716.23
5.4.50.0070.05316.23
5.4.40.0100.06716.19
5.4.30.0030.07016.49
5.4.20.0100.03016.30
5.4.10.0070.07316.33
5.4.00.0070.06715.69
5.3.290.0070.04014.45
5.3.280.0070.06014.55
5.3.270.0070.08014.60
5.3.260.0100.07714.68
5.3.250.0030.04314.45
5.3.240.0130.05014.57
5.3.230.0030.05714.41
5.3.220.0030.03714.53
5.3.210.0000.08314.50
5.3.200.0100.07014.64
5.3.190.0030.04714.39
5.3.180.0070.07014.51
5.3.170.0070.06314.51
5.3.160.0070.03314.51
5.3.150.0000.05314.38
5.3.140.0030.08314.52
5.3.130.0070.08014.48
5.3.120.0000.04314.52
5.3.110.0070.06314.36
5.3.100.0030.06013.86
5.3.90.0130.07013.87
5.3.80.0200.06313.98
5.3.70.0130.05713.98
5.3.60.0070.07013.95
5.3.50.0100.06713.89
5.3.40.0070.04013.88
5.3.30.0130.06713.89
5.3.20.0070.07013.65
5.3.10.0030.07713.73
5.3.00.0100.07013.59
5.2.170.0100.05711.03
5.2.160.0030.04011.13
5.2.150.0070.03711.10
5.2.140.0100.05711.09
5.2.130.0070.03311.05
5.2.120.0030.05310.88
5.2.110.0100.05711.07
5.2.100.0100.05711.04
5.2.90.0030.05311.24
5.2.80.0030.04011.00
5.2.70.0030.06310.98
5.2.60.0030.06711.04
5.2.50.0070.06710.96
5.2.40.0030.05710.98
5.2.30.0030.06310.86
5.2.20.0100.06010.73
5.2.10.0030.06011.00
5.2.00.0000.05710.75
5.1.60.0070.05010.05
5.1.50.0030.0439.97
5.1.40.0000.0279.93
5.1.30.0030.02710.36
5.1.20.0070.05010.33
5.1.10.0030.03310.01
5.1.00.0070.05310.12
5.0.50.0070.0478.59
5.0.40.0100.0208.43
5.0.30.0000.0338.19
5.0.20.0000.0278.16
5.0.10.0130.0308.13
5.0.00.0100.0638.22
4.4.90.0070.0177.73
4.4.80.0070.0277.73
4.4.70.0000.0377.73
4.4.60.0030.0337.73
4.4.50.0030.0337.73
4.4.40.0000.0607.73
4.4.30.0030.0237.73
4.4.20.0100.0307.73
4.4.10.0000.0237.73
4.4.00.0130.0477.73
4.3.110.0030.0407.73
4.3.100.0000.0177.73
4.3.90.0000.0207.73
4.3.80.0030.0537.73
4.3.70.0000.0237.73
4.3.60.0000.0207.73
4.3.50.0000.0407.73
4.3.40.0000.0577.73
4.3.30.0030.0377.73
4.3.20.0000.0377.73
4.3.10.0030.0337.73
4.3.00.0030.0377.73

preferences:
30.88 ms | 401 KiB | 5 Q