3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mt_rand_str ($l, $c = 'abcdefghijklmnopqrstuvwxyz1234567890') { for ($s = '', $cl = strlen($c)-1, $i = 0; $i < $l; $s .= $c[mt_rand(0, $cl)], ++$i); return $s; } echo mt_rand_str(8); // Something like mp2tmpsw echo mt_rand_str(4, '0123456789ABCDEF'); ?>

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)
7.4.10.0150.00414.88
7.4.00.0070.01015.00
7.3.130.0030.01414.89
7.3.120.0040.01114.81
7.3.110.0090.00914.91
7.3.100.0040.01214.71
7.3.90.0040.00814.91
7.3.80.0040.01114.80
7.3.70.0040.01414.98
7.3.60.0000.01315.02
7.3.50.0100.00314.70
7.3.40.0150.00015.01
7.3.30.0130.00314.71
7.3.20.0030.00616.71
7.3.10.0030.01216.55
7.3.00.0000.01516.52
7.2.260.0030.01415.07
7.2.250.0030.01415.05
7.2.240.0070.01014.95
7.2.230.0070.00715.24
7.2.220.0070.00715.25
7.2.210.0090.00615.05
7.2.200.0030.01014.77
7.2.190.0090.00615.13
7.2.180.0030.01015.18
7.2.170.0040.01115.18
7.2.160.0090.00615.04
7.2.150.0070.00716.92
7.2.140.0090.00616.91
7.2.130.0070.01016.75
7.2.120.0100.00716.82
7.2.110.0070.01116.91
7.2.100.0090.00316.68
7.2.90.0130.00316.79
7.2.80.0120.00317.07
7.2.70.0060.01016.81
7.2.60.0000.01316.86
7.2.50.0070.01017.11
7.2.40.0030.01216.71
7.2.30.0030.00716.99
7.2.20.0000.01617.01
7.2.10.0040.01116.78
7.2.00.0080.00318.20
7.1.330.0050.00516.01
7.1.320.0090.00615.79
7.1.310.0030.01315.91
7.1.300.0140.00015.75
7.1.290.0060.00915.82
7.1.280.0070.00715.73
7.1.270.0030.01015.82
7.1.260.0060.00615.91
7.1.250.0030.01015.67
7.1.240.0060.00915.79
7.1.230.0000.01315.97
7.1.220.0080.00415.68
7.1.210.0090.00015.77
7.1.200.0100.00715.81
7.1.190.0100.00315.82
7.1.180.0030.00615.85
7.1.170.0040.00715.82
7.1.160.0080.00815.55
7.1.150.0060.00315.84
7.1.140.0070.01015.60
7.1.130.0080.00815.81
7.1.120.0000.00915.88
7.1.110.0070.00415.90
7.1.100.0000.01515.73
7.1.90.0090.00615.51
7.1.80.0090.00615.61
7.1.70.0070.00316.46
7.1.60.0040.00916.50
7.1.50.0070.01116.31
7.1.40.0170.00015.87
7.1.30.0070.00715.77
7.1.20.0000.01515.82
7.1.10.0040.01315.87
7.1.00.0050.04319.07
7.0.330.0060.00615.47
7.0.320.0030.01015.27
7.0.310.0110.00415.46
7.0.300.0100.00315.63
7.0.290.0040.00415.51
7.0.280.0030.01015.20
7.0.270.0110.00415.28
7.0.260.0080.00815.42
7.0.250.0030.00915.32
7.0.240.0060.00615.50
7.0.230.0060.00615.47
7.0.220.0030.01015.28
7.0.210.0030.00615.57
7.0.200.0050.00416.03
7.0.190.0040.01115.31
7.0.180.0070.00715.26
7.0.170.0100.00715.46
7.0.160.0040.00715.21
7.0.150.0060.00915.44
7.0.140.0020.04518.83
7.0.130.0100.00315.60
7.0.120.0030.01015.53
7.0.110.0060.00815.58
7.0.100.0150.03817.70
7.0.90.0160.02317.63
7.0.80.0110.02117.68
7.0.70.0100.02217.69
7.0.60.0080.03817.57
7.0.50.0040.03217.84
7.0.40.0000.02816.77
7.0.30.0050.02516.68
7.0.20.0050.02816.78
7.0.10.0050.02016.75
7.0.00.0020.03916.81
5.6.400.0080.00614.16
5.6.390.0000.01414.46
5.6.380.0090.00614.64
5.6.370.0040.01114.51
5.6.360.0090.00614.58
5.6.350.0100.00314.41
5.6.340.0070.00714.69
5.6.330.0060.00314.07
5.6.320.0070.00714.41
5.6.310.0120.00414.50
5.6.300.0070.01114.51
5.6.290.0110.00314.48
5.6.280.0030.04217.66
5.6.270.0060.00614.55
5.6.260.0030.00914.33
5.6.250.0060.04117.52
5.6.240.0050.02717.43
5.6.230.0080.02617.70
5.6.220.0050.02917.50
5.6.210.0030.02517.48
5.6.200.0070.04617.67
5.6.190.0050.02617.80
5.6.180.0050.02317.66
5.6.170.0050.03117.58
5.6.160.0080.02817.67
5.6.150.0050.02917.74
5.6.140.0070.02417.65
5.6.130.0030.02617.79
5.6.120.0000.02917.69
5.6.110.0000.04317.70
5.6.100.0080.02317.73
5.6.90.0050.02817.63
5.6.80.0060.02117.44
5.6.70.0030.05117.47
5.6.60.0100.04217.35
5.6.50.0070.04317.38
5.6.40.0050.04217.44
5.6.30.0080.04517.34
5.6.20.0110.03217.24
5.6.10.0120.02717.31
5.6.00.0060.04317.28
5.5.380.0030.02817.54
5.5.370.0030.02617.25
5.5.360.0020.03217.39
5.5.350.0040.02817.45
5.5.340.0030.02517.66
5.5.330.0050.02217.42
5.5.320.0050.03417.55
5.5.310.0070.02217.75
5.5.300.0100.02717.62
5.5.290.0040.02417.63
5.5.280.0040.02417.42
5.5.270.0040.02217.43
5.5.260.0030.03217.57
5.5.250.0070.02417.42
5.5.240.0120.03217.22
5.5.230.0050.04017.33
5.5.220.0100.04017.26
5.5.210.0110.03717.11
5.5.200.0140.03517.24
5.5.190.0070.04017.28
5.5.180.0130.03517.15
5.5.170.0000.01014.17
5.5.160.0070.04517.33
5.5.150.0120.02817.38
5.5.140.0120.03816.98
5.5.130.0130.03517.22
5.5.120.0070.03317.20
5.5.110.0090.04117.27
5.5.100.0060.03817.23
5.5.90.0080.04317.32
5.5.80.0020.04217.14
5.5.70.0070.04417.30
5.5.60.0020.04917.11
5.5.50.0050.04617.24
5.5.40.0070.04017.10
5.5.30.0070.04017.19
5.5.20.0050.04317.25
5.5.10.0070.04216.89
5.5.00.0040.03717.02
5.4.450.0020.02615.30
5.4.440.0020.02515.17
5.4.430.0030.02315.20
5.4.420.0070.02315.35
5.4.410.0050.03815.07
5.4.400.0020.04414.86
5.4.390.0060.04214.97
5.4.380.0130.03315.15
5.4.370.0050.04414.94
5.4.360.0050.04215.12
5.4.350.0050.03715.05
5.4.340.0110.03614.91
5.4.330.0090.00611.30
5.4.320.0070.04215.09
5.4.310.0020.04515.17
5.4.300.0100.03115.01
5.4.290.0080.03715.13
5.4.280.0140.03314.84
5.4.270.0050.03815.01
5.4.260.0070.03515.12
5.4.250.0080.03315.16
5.4.240.0110.03315.07
5.4.230.0070.04115.04
5.4.220.0070.04115.07
5.4.210.0050.04014.88
5.4.200.0050.03515.17
5.4.190.0070.03815.17
5.4.180.0070.03715.10
5.4.170.0080.03814.98
5.4.160.0050.04015.06
5.4.150.0060.03615.05
5.4.140.0060.02813.77
5.4.130.0050.04013.85
5.4.120.0070.03813.64
5.4.110.0030.04413.90
5.4.100.0050.03213.83
5.4.90.0080.03713.62
5.4.80.0080.03513.65
5.4.70.0100.03713.72
5.4.60.0090.04113.74
5.4.50.0070.03713.89
5.4.40.0050.04113.89
5.4.30.0030.04213.64
5.4.20.0090.03813.65
5.4.10.0090.04013.71
5.4.00.0080.03313.60
5.3.290.0020.03812.71
5.3.280.0000.04512.55
5.3.270.0050.04012.70
5.3.260.0080.03612.61
5.3.250.0110.03712.69
5.3.240.0110.03312.61
5.3.230.0080.03812.60
5.3.220.0050.04412.39
5.3.210.0120.04012.45
5.3.200.0070.03712.53
5.3.190.0060.04212.60
5.3.180.0080.03512.53
5.3.170.0020.04712.67
5.3.160.0050.03412.68
5.3.150.0050.04312.48
5.3.140.0050.03812.62
5.3.130.0070.04212.60
5.3.120.0090.03512.66
5.3.110.0050.04212.54
5.3.100.0080.03712.41
5.3.90.0020.04212.30
5.3.80.0120.02312.22
5.3.70.0020.03912.13
5.3.60.0020.04312.26
5.3.50.0020.04212.20
5.3.40.0070.03312.28
5.3.30.0000.04412.23
5.3.20.0070.03512.20
5.3.10.0050.03812.16
5.3.00.0030.03811.98
5.2.170.0070.06313.82
5.2.160.0030.06713.82
5.2.150.0030.06013.82
5.2.140.0070.05713.82
5.2.130.0000.06713.82
5.2.120.0070.05313.82
5.2.110.0000.06713.82
5.2.100.0030.06013.82
5.2.90.0070.05313.82
5.2.80.0030.06313.82
5.2.70.0030.06013.82
5.2.60.0030.04713.82
5.2.50.0070.06013.82
5.2.40.0070.05313.82
5.2.30.0030.06313.82
5.2.20.0070.06013.82
5.2.10.0000.06013.82
5.2.00.0000.06713.82
5.1.60.0030.05013.82
5.1.50.0070.05013.82
5.1.40.0130.04013.82
5.1.30.0000.06013.82
5.1.20.0070.05313.82
5.1.10.0070.05313.82
5.1.00.0030.06013.82
5.0.50.0130.03713.82
5.0.40.0100.03713.82
5.0.30.0070.06013.82
5.0.20.0000.04713.82
5.0.10.0030.03713.82
5.0.00.0030.06713.82
4.4.90.0070.03313.82
4.4.80.0070.03013.82
4.4.70.0030.02713.82
4.4.60.0000.03713.82
4.4.50.0030.03713.82
4.4.40.0000.05013.82
4.4.30.0000.03713.82
4.4.20.0000.04013.82
4.4.10.0100.02313.82
4.4.00.0030.04713.82
4.3.110.0030.03313.82
4.3.100.0000.03313.82
4.3.90.0000.03713.82
4.3.80.0070.04713.82
4.3.70.0030.03013.82
4.3.60.0070.03013.82
4.3.50.0000.04013.82
4.3.40.0070.04713.82
4.3.30.0000.03713.82
4.3.20.0000.04013.82
4.3.10.0000.03713.82
4.3.00.0000.03713.82

preferences:
37.59 ms | 401 KiB | 5 Q