3v4l.org

run code in 300+ PHP versions simultaneously
<?php $random_string = function($length) { $bag = str_split('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'); $string = ''; while ($length--) { $string .= $bag[array_rand($bag)]; } return $string; }; $client_id = $random_string(2); var_dump($client_id);

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)
7.3.120.0070.01014.59
7.3.110.0090.00014.63
7.3.100.0090.00614.93
7.3.90.0000.01414.79
7.3.80.0030.00714.86
7.3.70.0120.00414.78
7.3.60.0120.00314.83
7.3.50.0000.00914.88
7.3.40.0040.01114.77
7.3.30.0030.01014.57
7.3.20.0060.00916.50
7.3.10.0110.00416.67
7.3.00.0030.01316.47
7.2.240.0090.00614.94
7.2.230.0090.00614.98
7.2.220.0070.01114.98
7.2.210.0090.00615.04
7.2.200.0040.00814.73
7.2.190.0180.00014.78
7.2.180.0040.01114.80
7.2.170.0030.00614.86
7.2.160.0070.01015.14
7.2.150.0000.01516.77
7.2.140.0080.00816.82
7.2.130.0100.00316.84
7.2.120.0100.00616.86
7.2.110.0100.00716.66
7.2.100.0030.00916.60
7.2.90.0070.01116.63
7.2.80.0110.00716.80
7.2.70.0070.01117.07
7.2.60.0110.00717.00
7.2.50.0080.00416.70
7.2.40.0100.00717.11
7.2.30.0000.01516.92
7.2.20.0060.01116.64
7.2.10.0030.01317.11
7.2.00.0070.00918.00
7.1.330.0030.01015.87
7.1.320.0070.00315.55
7.1.310.0090.00315.96
7.1.300.0090.00615.93
7.1.290.0030.00715.77
7.1.280.0060.00915.84
7.1.270.0060.00915.76
7.1.260.0030.01015.85
7.1.250.0030.01015.93
7.1.70.0000.01317.18
7.1.60.0070.01319.32
7.1.50.0130.01016.98
7.1.00.0000.08022.57
7.0.200.0070.00316.63
7.0.140.0000.07321.96
7.0.60.0100.03319.83
7.0.50.0000.04317.84
7.0.40.0100.04720.15
7.0.30.0370.06020.12
7.0.20.0230.04020.19
7.0.10.0070.07720.09
7.0.00.0100.08320.22
5.6.210.0100.07320.67
5.6.200.0070.04318.19
5.6.190.0070.09020.64
5.6.180.0400.04720.55
5.6.170.0330.07720.47
5.6.160.0000.04720.43
5.6.150.0000.05018.22
5.6.140.0030.07718.17
5.6.130.0000.04318.17
5.6.120.0000.06020.74
5.6.110.0170.08320.96
5.6.100.0070.03721.05
5.6.90.0000.04321.11
5.6.80.0000.08020.26
5.5.350.0130.08720.39
5.5.340.0100.07317.96
5.5.330.0070.07020.43
5.5.320.0200.04320.27
5.5.310.0330.06720.34
5.5.300.0100.06717.96
5.5.290.0130.06717.93
5.5.280.0130.06020.65
5.5.270.0100.07320.75
5.5.260.0070.07720.86
5.5.250.0100.08020.68
5.5.240.0100.08020.27
5.4.450.0100.06019.32
5.4.440.0800.05719.58
5.4.430.0130.05019.30
5.4.420.0870.04319.57
5.4.410.0800.06019.35
5.4.400.0930.04319.29
5.4.390.1130.03319.15
5.4.380.0400.06018.75
5.4.370.0400.07018.50
5.4.360.0400.06018.80
5.4.350.0470.05318.59
5.4.340.0330.05018.70
5.4.320.0040.03912.51
5.4.310.0090.04012.50
5.4.300.0050.03912.51
5.4.290.0050.04012.50
5.4.280.0070.03512.39
5.4.270.0070.03612.39
5.4.260.0050.03912.40
5.4.250.0080.03512.40
5.4.240.0040.03812.40
5.4.230.0040.04012.39
5.4.220.0060.03612.39
5.4.210.0080.03312.39
5.4.200.0070.03612.39
5.4.190.0090.03212.38
5.4.180.0080.03412.39
5.4.170.0100.03212.40
5.4.160.0040.03812.39
5.4.150.0060.03612.39
5.4.140.0060.03812.08
5.4.130.0050.03612.06
5.4.120.0070.03412.02
5.4.110.0020.03912.02
5.4.100.0050.03712.02
5.4.90.0090.03712.02
5.4.80.0090.03412.02
5.4.70.0100.03012.02
5.4.60.0050.03512.01
5.4.50.0050.03712.01
5.4.40.0060.04012.00
5.4.30.0070.03812.00
5.4.20.0070.03512.00
5.4.10.0070.03412.00
5.4.00.0050.03711.49
5.3.290.0080.03812.80
5.3.280.0060.03712.71
5.3.270.0090.03712.73
5.3.260.0050.04012.72
5.3.250.0090.03412.72
5.3.240.0080.03512.72
5.3.230.0080.03612.71
5.3.220.0070.03812.68
5.3.210.0040.04112.68
5.3.200.0090.03412.68
5.3.190.0100.03412.68
5.3.180.0060.03712.68
5.3.170.0080.03512.67
5.3.160.0100.03512.68
5.3.150.0020.04612.68
5.3.140.0050.03712.66
5.3.130.0090.03612.66
5.3.120.0060.04012.66
5.3.110.0090.04312.66
5.3.100.0090.03312.13
5.3.90.0140.04512.11
5.3.80.0090.04212.09
5.3.70.0070.03712.10
5.3.60.0070.03612.08
5.3.50.0070.03412.02
5.3.40.0060.03912.02
5.3.30.0050.03711.99
5.3.20.0050.04411.76
5.3.10.0050.04711.73
5.3.00.0080.03911.72
5.2.170.0070.0289.18
5.2.160.0070.0269.18
5.2.150.0060.0329.18
5.2.140.0020.0349.18
5.2.130.0030.0369.14
5.2.120.0040.0389.14
5.2.110.0060.0389.14
5.2.100.0020.0319.14
5.2.90.0040.0299.14
5.2.80.0040.0339.14
5.2.70.0040.0359.14
5.2.60.0050.0349.09
5.2.50.0070.0359.05
5.2.40.0060.0309.03
5.2.30.0060.0369.01
5.2.20.0090.0349.00
5.2.10.0060.0368.93
5.2.00.0060.0398.79
5.1.60.0060.0228.07
5.1.50.0050.0238.07
5.1.40.0040.0238.05
5.1.30.0060.0328.40
5.1.20.0030.0278.42
5.1.10.0010.0288.14
5.1.00.0060.0238.14
5.0.50.0050.0196.62
5.0.40.0030.0196.48
5.0.30.0050.0336.29
5.0.20.0060.0326.27
5.0.10.0050.0186.24
5.0.00.0050.0296.23
4.4.90.0050.0184.78
4.4.80.0020.0274.75
4.4.70.0030.0214.75
4.4.60.0040.0254.76
4.4.50.0020.0204.77
4.4.40.0040.0244.71
4.4.30.0020.0204.75
4.4.20.0010.0174.85
4.4.10.0040.0254.85
4.4.00.0030.0314.76
4.3.110.0030.0154.67
4.3.100.0040.0134.66
4.3.90.0020.0154.63
4.3.80.0020.0324.58
4.3.70.0020.0154.63
4.3.60.0030.0174.63
4.3.50.0030.0244.63
4.3.40.0050.0264.54
4.3.30.0020.0173.28
4.3.20.0040.0183.26
4.3.10.0000.0173.22
4.3.00.0030.0206.78

preferences:
38.5 ms | 401 KiB | 5 Q