3v4l.org

run code in 300+ PHP versions simultaneously
<?php function quickRandom($length = 16) { $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; return substr(str_shuffle(str_repeat($pool, 5)), 0, $length); } echo strlen(quickRandom(62));

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)
7.4.10.0100.00714.85
7.4.00.0130.00614.90
7.3.130.0120.00314.61
7.3.120.0070.01114.68
7.3.110.0030.01514.82
7.3.100.0100.00714.67
7.3.90.0060.01314.79
7.3.80.0080.00314.58
7.3.70.0040.01114.54
7.3.60.0090.00614.88
7.3.50.0040.01414.86
7.3.40.0110.00314.78
7.3.30.0070.00714.60
7.3.20.0060.00616.69
7.3.10.0040.00816.58
7.3.00.0110.00416.75
7.2.260.0140.00415.04
7.2.250.0060.00915.20
7.2.240.0060.00914.77
7.2.230.0060.00915.01
7.2.220.0090.00914.74
7.2.210.0000.00915.00
7.2.200.0060.00614.98
7.2.190.0030.01014.60
7.2.180.0110.00614.62
7.2.170.0090.00014.86
7.2.160.0030.01014.75
7.2.150.0060.00916.63
7.2.140.0120.00416.81
7.2.130.0030.01316.79
7.2.120.0070.01016.67
7.2.110.0030.01216.76
7.2.100.0070.00716.93
7.2.90.0090.00616.62
7.2.80.0060.00616.86
7.2.70.0000.01016.58
7.2.60.0070.01016.51
7.2.50.0090.00616.50
7.2.40.0060.00917.04
7.2.30.0000.01116.81
7.2.20.0150.00316.60
7.2.10.0120.00316.57
7.2.00.0040.01216.67
7.1.330.0080.00615.43
7.1.320.0080.00615.52
7.1.310.0000.01515.86
7.1.300.0060.01215.77
7.1.290.0100.00615.52
7.1.280.0060.00915.69
7.1.270.0100.00715.56
7.1.260.0040.00415.90
7.1.250.0100.00015.61
7.1.240.0000.01415.51
7.1.230.0040.00715.51
7.1.220.0000.01315.77
7.1.210.0100.00315.53
7.1.200.0110.00315.41
7.1.190.0090.00615.66
7.1.180.0030.00915.49
7.1.170.0000.01615.38
7.1.160.0000.01415.65
7.1.150.0030.00815.63
7.1.140.0030.00915.37
7.1.130.0070.00715.33
7.1.120.0030.01315.76
7.1.110.0030.00515.92
7.1.100.0100.00615.68
7.1.90.0070.01015.71
7.1.80.0100.00615.73
7.1.70.0080.00616.46
7.1.60.0070.01217.57
7.1.50.0150.01025.17
7.1.40.0030.00615.18
7.1.30.0080.00615.64
7.1.20.0070.01015.48
7.1.10.0080.00415.80
7.1.00.0050.02519.01
7.0.330.0060.01015.14
7.0.320.0090.00315.39
7.0.310.0080.00415.20
7.0.300.0070.00715.11
7.0.290.0030.00915.20
7.0.280.0030.01315.43
7.0.270.0000.01214.91
7.0.260.0030.01315.42
7.0.250.0080.00615.03
7.0.240.0030.00915.23
7.0.230.0030.01015.19
7.0.220.0080.00415.18
7.0.210.0030.00615.32
7.0.200.0040.00916.03
7.0.190.0070.00715.32
7.0.180.0000.00915.07
7.0.170.0110.00415.08
7.0.160.0060.01015.47
7.0.150.0030.01015.15
7.0.140.0050.04018.56
7.0.130.0060.00615.36
7.0.120.0080.00315.00
7.0.110.0030.01015.21
7.0.100.0110.00415.06
7.0.90.0030.01315.13
7.0.80.0080.00415.41
7.0.70.0070.00715.13
7.0.60.0080.04717.58
7.0.50.0040.04416.69
7.0.40.0070.04816.85
7.0.30.0090.03116.69
7.0.20.0120.02616.60
7.0.10.0120.03716.84
7.0.00.0070.04716.71
5.6.400.0080.00314.44
5.6.390.0030.00713.90
5.6.380.0000.01214.20
5.6.370.0000.01114.11
5.6.360.0070.00414.27
5.6.350.0070.00713.89
5.6.340.0060.00614.24
5.6.330.0000.01314.30
5.6.320.0070.00714.41
5.6.310.0070.01114.09
5.6.300.0040.00814.02
5.6.290.0040.00714.16
5.6.280.0050.04017.66
5.6.270.0070.00714.21
5.6.260.0060.00313.79
5.6.250.0060.00914.01
5.6.240.0090.00014.23
5.6.230.0070.00714.03
5.6.220.0080.00414.04
5.6.210.0120.04017.41
5.6.200.0080.02116.13
5.6.190.0100.05017.38
5.6.180.0120.02217.33
5.6.170.0160.03517.20
5.6.160.0050.04717.33
5.6.150.0090.04116.23
5.6.140.0050.03716.24
5.6.130.0070.03216.14
5.6.120.0020.03917.49
5.6.110.0050.04717.54
5.6.100.0030.03617.65
5.6.90.0120.04017.57
5.6.80.0030.02517.21
5.6.70.0180.02017.10
5.6.60.0000.01414.15
5.6.50.0040.00414.29
5.6.40.0070.00714.00
5.6.30.0060.00613.96
5.6.20.0050.00513.92
5.6.10.0060.00314.09
5.6.00.0070.00714.19
5.5.380.0090.00614.28
5.5.370.0030.01314.04
5.5.360.0040.01114.15
5.5.350.0080.04117.25
5.5.340.0030.02815.92
5.5.330.0060.04317.05
5.5.320.0220.04217.34
5.5.310.0130.03717.24
5.5.300.0070.04715.98
5.5.290.0010.02816.17
5.5.280.0070.04417.37
5.5.270.0050.05117.61
5.5.260.0120.03917.39
5.5.250.0070.03517.44
5.5.240.0140.03217.10
5.5.230.0100.00714.26
5.5.220.0060.00614.22
5.5.210.0060.00714.19
5.5.200.0030.00914.21
5.5.190.0070.00714.10
5.5.180.0040.00813.95
5.5.170.0070.00713.69
5.5.160.0060.00614.02
5.5.150.0040.01114.17
5.5.140.0090.00313.86
5.5.130.0110.00314.15
5.5.120.0000.01014.01
5.5.110.0080.00814.34
5.5.100.0060.00914.09
5.5.90.0060.00314.30
5.5.80.0000.01314.30
5.5.70.0090.00314.00
5.5.60.0090.00614.24
5.5.50.0090.00614.13
5.5.40.0040.00714.23
5.5.30.0040.00413.95
5.5.20.0120.00313.69
5.5.10.0060.00914.02
5.5.00.0060.00914.08
5.4.450.0360.03115.16
5.4.440.0540.03415.32
5.4.430.0400.03015.32
5.4.420.0300.02615.19
5.4.410.0460.02515.09
5.4.400.0230.02714.91
5.4.390.0170.03014.83
5.4.380.0170.03014.83
5.4.370.0100.02914.57
5.4.360.0050.03614.86
5.4.350.0050.02411.31
5.4.340.0060.02011.53
5.4.330.0030.00710.89
5.4.320.0020.02311.76
5.4.310.0070.02111.67
5.4.300.0050.01811.65
5.4.290.0060.02211.77
5.4.280.0050.02311.53
5.4.270.0100.01711.68
5.4.260.0040.02411.60
5.4.250.0110.03214.84
5.4.240.0070.02714.84
5.4.230.0040.03014.89
5.4.220.0040.03214.91
5.4.210.0050.03314.96
5.4.200.0020.03014.92
5.4.190.0100.02314.67
5.4.180.0120.02214.88
5.4.170.0030.02814.99
5.4.160.0080.04015.04
5.4.150.0050.03014.98
5.4.140.0080.02813.69
5.4.130.0060.02613.80
5.4.120.0050.02913.74
5.4.110.0070.02713.62
5.4.100.0110.02113.76
5.4.90.0070.03013.79
5.4.80.0050.03813.56
5.4.70.0050.02713.71
5.4.60.0030.02913.77
5.4.50.0060.02813.74
5.4.40.0010.02813.78
5.4.30.0080.02513.69
5.4.20.0070.03013.74
5.4.10.0050.03013.83
5.4.00.0070.02713.44
5.3.290.0060.02511.69
5.3.280.0050.02812.48
5.3.270.0090.03412.59
5.3.260.0090.02712.60
5.3.250.0100.02712.68
5.3.240.0060.03912.58
5.3.230.0030.03012.64
5.3.220.0100.02612.29
5.3.210.0050.02812.41
5.3.200.0150.02112.57
5.3.190.0100.02712.58
5.3.180.0030.03312.62
5.3.170.0050.03812.56
5.3.160.0020.03212.64
5.3.150.0050.03012.58
5.3.140.0080.02712.58
5.3.130.0050.03812.59
5.3.120.0080.02612.58
5.3.110.0030.03012.43
5.3.100.0070.02512.31
5.3.90.0150.02212.24
5.3.80.0080.02712.28
5.3.70.0030.02912.12
5.3.60.0050.02712.25
5.3.50.0050.02612.23
5.3.40.0140.02512.16
5.3.30.0040.02712.26
5.3.20.0050.02912.05
5.3.10.0050.02711.97
5.3.00.0080.02611.99
5.2.170.0030.04311.14
5.2.160.0000.04311.16
5.2.150.0030.04311.24
5.2.140.0000.04311.21
5.2.130.0070.06011.08
5.2.120.0100.03711.10
5.2.110.0130.03711.00
5.2.100.0030.04011.09
5.2.90.0130.03311.16
5.2.80.0030.04311.24
5.2.70.0070.04311.15
5.2.60.0070.03711.14
5.2.50.0030.04010.86
5.2.40.0030.04311.06
5.2.30.0030.04010.80
5.2.20.0000.04711.13
5.2.10.0100.03310.84
5.2.00.0030.04010.80
5.1.60.0100.0279.99
5.1.50.0030.03310.05
5.1.40.0030.03310.13
5.1.30.0000.03710.54
5.1.20.0070.03310.17
5.1.10.0030.03710.14
5.1.00.0030.0379.98
5.0.50.0100.0208.65
5.0.40.0000.0278.32
5.0.30.0030.0408.42
5.0.20.0000.0308.26
5.0.10.0030.0278.24
5.0.00.0000.0438.22
4.4.90.0000.0237.06
4.4.80.0030.0237.06
4.4.70.0000.0237.06
4.4.60.0000.0237.06
4.4.50.0000.0277.06
4.4.40.0030.0377.06
4.4.30.0000.0237.06
4.4.20.0000.0237.06
4.4.10.0000.0237.06
4.4.00.0070.0277.06
4.3.110.0070.0177.06
4.3.100.0030.0207.06
4.3.90.0000.0237.06
4.3.80.0000.0337.06
4.3.70.0130.0107.06
4.3.60.0030.0207.06
4.3.50.0030.0207.06
4.3.40.0070.0307.06
4.3.30.0000.0237.06
4.3.20.0070.0177.06
4.3.10.0000.0237.06
4.3.00.0100.0237.62

preferences:
55.77 ms | 400 KiB | 5 Q