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)]; } }; $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)
7.4.10.0090.00914.69
7.4.00.0040.00714.64
7.3.130.0130.00314.81
7.3.120.0070.01114.93
7.3.110.0090.00614.55
7.3.100.0080.00614.77
7.3.90.0090.00614.83
7.3.80.0090.00614.68
7.3.70.0070.00714.61
7.3.60.0100.00314.90
7.3.50.0090.00314.70
7.3.40.0110.00414.49
7.3.30.0120.00014.67
7.3.20.0060.00916.57
7.3.10.0030.01016.84
7.3.00.0030.00616.49
7.2.260.0030.01415.24
7.2.250.0070.01115.08
7.2.240.0000.01514.62
7.2.230.0030.01314.96
7.2.220.0090.00614.60
7.2.210.0030.01314.77
7.2.200.0070.01015.17
7.2.190.0000.01115.12
7.2.180.0060.00314.95
7.2.170.0000.00915.10
7.2.160.0030.00915.04
7.2.150.0060.01016.62
7.2.140.0000.01816.80
7.2.130.0030.01317.07
7.2.120.0060.00916.79
7.2.110.0000.01316.79
7.2.100.0030.01216.98
7.2.90.0000.00916.72
7.2.80.0070.00716.80
7.2.70.0000.01316.49
7.2.60.0040.00717.01
7.2.50.0090.00316.68
7.2.40.0040.01116.88
7.2.30.0090.00916.60
7.2.20.0060.00616.80
7.2.10.0070.01117.04
7.2.00.0060.00316.86
7.1.330.0030.01015.95
7.1.320.0000.01415.75
7.1.310.0000.01516.18
7.1.300.0090.00315.56
7.1.290.0060.00615.50
7.1.280.0110.00415.90
7.1.270.0030.01015.87
7.1.260.0000.01015.70
7.1.250.0100.00615.82
7.1.240.0000.01215.70
7.1.230.0050.00515.70
7.1.220.0000.01415.93
7.1.210.0000.01215.55
7.1.200.0030.00715.89
7.1.190.0040.00415.92
7.1.180.0030.00615.72
7.1.170.0040.00415.69
7.1.160.0040.01115.81
7.1.150.0040.01115.76
7.1.140.0040.01215.94
7.1.130.0040.01115.65
7.1.120.0050.00315.87
7.1.110.0000.00815.82
7.1.100.0080.00815.59
7.1.90.0140.00316.04
7.1.80.0090.00316.04
7.1.70.0020.01016.50
7.1.60.0030.00917.69
7.1.50.0060.01316.41
7.1.40.0060.01115.76
7.1.30.0030.00915.76
7.1.20.0040.00815.89
7.1.10.0060.00615.89
7.1.00.0020.04319.08
7.0.330.0090.00015.25
7.0.320.0100.00315.24
7.0.310.0030.01015.01
7.0.300.0070.00715.41
7.0.290.0110.00415.39
7.0.280.0040.01115.39
7.0.270.0030.01015.22
7.0.260.0060.00915.39
7.0.250.0070.00715.36
7.0.240.0060.00915.55
7.0.230.0030.01015.27
7.0.220.0040.00415.50
7.0.210.0030.00915.52
7.0.200.0040.00616.14
7.0.190.0090.00615.62
7.0.180.0140.00315.28
7.0.170.0000.01115.48
7.0.160.0060.01015.45
7.0.150.0120.00315.59
7.0.140.0040.03518.75
7.0.130.0030.00715.27
7.0.120.0030.00915.49
7.0.110.0000.00915.39
7.0.100.0040.01115.55
7.0.90.0070.00715.35
7.0.80.0110.00615.43
7.0.70.0030.00715.39
7.0.60.0110.02017.61
7.0.50.0090.01916.66
7.0.40.0060.02716.93
7.0.30.0220.04016.82
7.0.20.0220.04216.84
7.0.10.0010.05116.84
7.0.00.0070.04616.73
5.6.400.0120.00314.56
5.6.390.0000.01414.58
5.6.380.0030.00614.23
5.6.370.0110.00414.61
5.6.360.0030.01314.50
5.6.350.0000.01114.23
5.6.340.0030.00914.09
5.6.330.0040.00414.71
5.6.320.0030.01314.37
5.6.310.0030.01414.74
5.6.300.0060.00614.32
5.6.290.0030.01014.34
5.6.280.0040.04217.69
5.6.270.0040.00714.55
5.6.260.0040.00414.51
5.6.250.0110.00014.37
5.6.240.0080.00814.52
5.6.230.0120.00614.55
5.6.220.0100.00314.49
5.6.210.0050.02817.51
5.6.200.0020.05016.23
5.6.190.0100.04517.41
5.6.180.0250.04017.63
5.6.170.0200.02717.40
5.6.160.0080.02217.28
5.6.150.0050.04716.40
5.6.140.0070.04216.40
5.6.130.0070.02216.39
5.6.120.0050.04117.58
5.6.110.0060.04417.77
5.6.100.0040.02517.58
5.6.90.0050.02517.46
5.6.80.0060.04117.26
5.6.70.0070.00714.41
5.6.60.0040.00814.61
5.6.50.0090.00614.48
5.6.40.0090.00314.40
5.6.30.0110.00414.43
5.6.20.0100.00614.27
5.6.10.0070.00714.40
5.6.00.0040.01114.43
5.5.380.0140.00314.54
5.5.370.0000.01614.26
5.5.360.0060.00614.05
5.5.350.0160.03517.51
5.5.340.0090.03516.17
5.5.330.0040.03517.39
5.5.320.0100.02917.38
5.5.310.0200.04417.18
5.5.300.0020.03716.10
5.5.290.0030.04216.11
5.5.280.0070.04717.53
5.5.270.0050.02717.71
5.5.260.0050.04517.53
5.5.250.0050.04817.53
5.5.240.0140.03817.22
5.5.230.0060.00313.88
5.5.220.0050.00514.00
5.5.210.0070.00714.15
5.5.200.0060.00314.27
5.5.190.0000.01413.80
5.5.180.0100.00714.00
5.5.170.0070.00414.20
5.5.160.0060.00614.10
5.5.150.0000.01314.09
5.5.140.0080.00814.34
5.5.130.0070.01014.00
5.5.120.0060.00614.08
5.5.110.0060.00614.18
5.5.100.0030.01214.39
5.5.90.0000.01314.02
5.5.80.0070.00713.93
5.5.70.0030.00913.89
5.5.60.0100.00313.75
5.5.50.0030.00714.48
5.5.40.0060.00614.22
5.5.30.0030.00714.35
5.5.20.0060.00914.25
5.5.10.0030.01314.08
5.5.00.0090.00014.07
5.4.450.0150.02915.74
5.4.440.0370.03715.79
5.4.430.0370.03415.83
5.4.420.0360.03315.86
5.4.410.0430.02915.78
5.4.400.0120.03415.51
5.4.390.0470.02915.55
5.4.380.0140.03315.45
5.4.370.0170.03015.42
5.4.360.0280.02515.33
5.4.350.0200.03815.46
5.4.340.0180.03215.44
5.4.330.0040.00812.09
5.4.320.0050.02212.30
5.4.310.0050.02212.30
5.4.300.0060.02012.30
5.4.290.0040.02212.30
5.4.280.0070.01812.24
5.4.270.0060.02112.25
5.4.260.0070.01912.25
5.4.250.0040.02112.24
5.4.240.0030.02212.24
5.4.230.0030.02312.24
5.4.220.0060.01912.24
5.4.210.0020.02312.24
5.4.200.0040.02412.24
5.4.190.0060.02012.24
5.4.180.0080.02212.24
5.4.170.0030.02112.25
5.4.160.0050.02012.24
5.4.150.0050.01912.24
5.4.140.0080.01712.08
5.4.130.0030.02112.08
5.4.120.0060.02012.06
5.4.110.0060.01912.05
5.4.100.0060.02012.05
5.4.90.0070.02512.06
5.4.80.0040.02112.05
5.4.70.0040.02012.05
5.4.60.0030.02312.05
5.4.50.0040.02112.05
5.4.40.0060.02112.05
5.4.30.0060.02312.05
5.4.20.0070.02012.04
5.4.10.0040.02012.05
5.4.00.0050.02111.79
5.3.290.0050.03912.80
5.3.280.0040.03912.71
5.3.270.0080.03612.72
5.3.260.0110.04512.72
5.3.250.0050.03912.72
5.3.240.0100.03712.72
5.3.230.0090.03812.70
5.3.220.0060.03712.68
5.3.210.0100.04112.68
5.3.200.0060.03512.68
5.3.190.0070.04312.68
5.3.180.0030.04012.67
5.3.170.0060.04112.67
5.3.160.0080.03912.67
5.3.150.0080.03812.67
5.3.140.0070.04412.66
5.3.130.0080.04212.65
5.3.120.0050.03912.66
5.3.110.0060.03812.66
5.3.100.0080.03412.13
5.3.90.0060.03712.10
5.3.80.0080.04612.09
5.3.70.0070.04812.09
5.3.60.0060.03812.08
5.3.50.0070.03712.03
5.3.40.0100.04512.03
5.3.30.0100.04611.99
5.3.20.0090.04011.77
5.3.10.0130.04011.73
5.3.00.0090.05111.72
5.2.170.0060.0319.18
5.2.160.0040.0349.18
5.2.150.0030.0329.18
5.2.140.0070.0369.18
5.2.130.0060.0289.14
5.2.120.0090.0429.14
5.2.110.0080.0349.15
5.2.100.0050.0319.14
5.2.90.0070.0319.14
5.2.80.0040.0339.14
5.2.70.0070.0299.14
5.2.60.0050.0309.09
5.2.50.0040.0329.05
5.2.40.0050.0289.04
5.2.30.0030.0339.02
5.2.20.0060.0289.00
5.2.10.0090.0358.93
5.2.00.0050.0298.79
5.1.60.0040.0268.07
5.1.50.0020.0278.07
5.1.40.0020.0338.05
5.1.30.0080.0268.40
5.1.20.0060.0358.42
5.1.10.0050.0308.14
5.1.00.0060.0388.14
5.0.50.0050.0276.62
5.0.40.0060.0246.48
5.0.30.0030.0366.29
5.0.20.0030.0206.27
5.0.10.0050.0246.23
5.0.00.0080.0276.23
4.4.90.0040.0174.77
4.4.80.0000.0184.75
4.4.70.0030.0194.76
4.4.60.0040.0154.76
4.4.50.0110.0134.77
4.4.40.0050.0234.71
4.4.30.0040.0254.76
4.4.20.0020.0234.84
4.4.10.0030.0174.84
4.4.00.0050.0244.76
4.3.110.0020.0164.67
4.3.100.0010.0164.67
4.3.90.0030.0174.63
4.3.80.0010.0264.59
4.3.70.0040.0134.63
4.3.60.0000.0184.62
4.3.50.0010.0174.62
4.3.40.0040.0244.54
4.3.30.0020.0193.29
4.3.20.0020.0213.26
4.3.10.0020.0213.22
4.3.00.0000.0276.85

preferences:
35.84 ms | 400 KiB | 5 Q