3v4l.org

run code in 300+ PHP versions simultaneously
<?php function mt_rand_str ($l, $c = '1234567890') { for ($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, '0123456789'); ?>

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)
7.3.120.0110.00415.11
7.3.110.0030.01014.99
7.3.100.0000.01614.88
7.3.90.0070.01114.95
7.3.80.0040.01214.99
7.3.70.0000.01314.78
7.3.60.0070.00414.95
7.3.50.0000.01515.00
7.3.40.0000.01314.68
7.3.30.0070.01014.77
7.3.20.0030.00516.45
7.3.10.0000.01316.47
7.3.00.0110.00416.84
7.2.240.0090.00614.91
7.2.230.0030.01014.73
7.2.220.0170.00014.89
7.2.210.0090.00914.91
7.2.200.0070.01115.07
7.2.190.0040.01515.14
7.2.180.0040.01514.75
7.2.170.0000.01814.79
7.2.160.0070.01114.98
7.2.150.0070.01017.02
7.2.140.0000.01316.77
7.2.130.0000.01116.97
7.2.120.0070.00716.93
7.2.110.0060.00616.77
7.2.100.0100.00716.98
7.2.90.0000.01116.79
7.2.80.0090.00617.06
7.2.70.0030.01016.93
7.2.60.0040.00717.13
7.2.50.0030.00817.08
7.2.40.0060.00916.80
7.2.30.0030.01017.04
7.2.20.0030.01016.98
7.2.10.0030.01417.05
7.2.00.0030.01117.05
7.1.330.0090.00915.71
7.1.320.0080.00815.82
7.1.310.0060.00915.79
7.1.300.0070.00715.62
7.1.290.0070.00716.04
7.1.280.0000.01415.79
7.1.270.0040.01115.85
7.1.260.0060.01015.85
7.1.250.0110.00415.76
7.1.70.0000.00817.24
7.1.60.0030.02019.17
7.1.50.0070.01416.77
7.1.00.0000.07722.33
7.0.200.0000.00816.83
7.0.140.0070.07321.92
7.0.100.0370.07319.89
7.0.90.0070.05019.82
7.0.80.0070.04719.89
7.0.70.0070.07719.95
7.0.60.0030.09019.92
7.0.50.0070.06720.32
7.0.40.0130.06720.18
7.0.30.0070.09320.02
7.0.20.0100.07719.95
7.0.10.0130.07320.13
7.0.00.0030.07320.05
5.6.280.0070.07021.11
5.6.250.0070.07720.54
5.6.240.0070.05720.65
5.6.230.0030.09020.59
5.6.220.0130.04720.66
5.6.210.0130.06720.59
5.6.200.0130.08321.10
5.6.190.0070.08021.00
5.6.180.0030.09021.03
5.6.170.0130.06320.98
5.6.160.0030.08021.13
5.6.150.0030.09021.05
5.6.140.0070.08320.94
5.6.130.0100.08321.02
5.6.120.0170.06321.06
5.6.110.0200.06721.00
5.6.100.0230.06020.95
5.6.90.0170.07320.91
5.6.80.0130.06320.45
5.6.70.0070.06320.43
5.6.60.0170.07320.43
5.6.50.0100.08020.51
5.6.40.0030.08720.43
5.6.30.0030.05320.37
5.6.20.0100.07320.37
5.6.10.0030.06720.38
5.6.00.0070.06720.43
5.5.380.0030.06020.36
5.5.370.0130.08320.32
5.5.360.0130.07320.44
5.5.350.0100.08320.43
5.5.340.0070.07020.91
5.5.330.0170.06720.77
5.5.320.0070.08020.76
5.5.310.0070.08020.88
5.5.300.0130.07720.71
5.5.290.0030.07020.75
5.5.280.0000.08720.88
5.5.270.0130.08020.90
5.5.260.0100.07720.76
5.5.250.0200.07320.69
5.5.240.0130.03320.27
5.5.230.0100.07320.17
5.5.220.0230.07320.25
5.5.210.0070.07720.17
5.5.200.0100.08020.18
5.5.190.0130.06720.22
5.5.180.0100.07020.20
5.5.160.0100.05020.27
5.5.150.0170.06720.12
5.5.140.0070.06720.11
5.5.130.0030.07720.25
5.5.120.0070.08320.06
5.5.110.0100.07320.15
5.5.100.0130.06320.16
5.5.90.0030.08019.99
5.5.80.0000.07720.11
5.5.70.0100.07020.14
5.5.60.0030.06320.10
5.5.50.0070.07020.07
5.5.40.0130.08020.13
5.5.30.0070.07320.03
5.5.20.0030.05019.94
5.5.10.0100.07320.03
5.5.00.0130.07720.03
5.4.450.0070.05719.46
5.4.440.0100.08019.50
5.4.430.0070.03719.21
5.4.420.0070.07319.26
5.4.410.0070.08019.38
5.4.400.0030.07018.88
5.4.390.0130.07318.85
5.4.380.0130.06718.95
5.4.370.0070.07718.88
5.4.360.0100.06719.04
5.4.350.0070.07019.13
5.4.340.0070.08019.14
5.4.320.0100.07719.03
5.4.310.0170.06719.07
5.4.300.0100.07019.03
5.4.290.0100.07319.18
5.4.280.0070.06719.16
5.4.270.0100.07718.87
5.4.260.0030.06719.14
5.4.250.0030.04019.11
5.4.240.0070.07318.98
5.4.230.0100.06719.22
5.4.220.0100.07019.04
5.4.210.0100.04318.89
5.4.200.0070.08319.04
5.4.190.0170.06719.03
5.4.180.0100.07019.23
5.4.170.0130.05319.15
5.4.160.0030.08719.07
5.4.150.0100.07019.11
5.4.140.0130.06716.27
5.4.130.0030.07016.34
5.4.120.0130.07716.34
5.4.110.0030.05016.46
5.4.100.0030.07716.32
5.4.90.0030.06716.40
5.4.80.0100.06016.41
5.4.70.0070.04016.45
5.4.60.0070.04316.40
5.4.50.0070.06716.37
5.4.40.0170.05716.42
5.4.30.0100.06316.43
5.4.20.0070.07016.39
5.4.10.0070.05316.38
5.4.00.0130.06315.79
5.3.290.0100.05314.59
5.3.280.0130.07014.70
5.3.270.0000.07014.73
5.3.260.0070.07314.74
5.3.250.0100.05714.66
5.3.240.0100.07314.66
5.3.230.0070.07714.73
5.3.220.0030.07014.62
5.3.210.0130.07314.65
5.3.200.0030.06714.66
5.3.190.0100.04014.70
5.3.180.0070.04714.51
5.3.170.0030.05014.55
5.3.160.0070.04314.65
5.3.150.0100.04014.62
5.3.140.0070.05714.50
5.3.130.0000.08714.53
5.3.120.0130.07714.47
5.3.110.0100.07314.58
5.3.100.0030.05714.07
5.3.90.0030.07314.13
5.3.80.0100.07014.14
5.3.70.0130.06714.11
5.3.60.0030.05713.98
5.3.50.0030.07714.00
5.3.40.0100.07714.00
5.3.30.0100.07013.85
5.3.20.0100.07013.70
5.3.10.0100.07013.61
5.3.00.0000.07013.69
5.2.170.0070.06311.20
5.2.160.0100.05311.17
5.2.150.0030.06011.28
5.2.140.0070.06011.14
5.2.130.0000.07011.21
5.2.120.0130.05011.01
5.2.110.0100.02311.21
5.2.100.0030.06311.02
5.2.90.0130.05311.19
5.2.80.0030.06311.00
5.2.70.0130.05711.23
5.2.60.0130.03711.14
5.2.50.0100.05311.05
5.2.40.0030.06310.91
5.2.30.0030.05011.05
5.2.20.0000.04310.95
5.2.10.0000.03710.89
5.2.00.0030.05010.71
5.1.60.0030.05010.07
5.1.50.0070.05010.11
5.1.40.0070.04710.06
5.1.30.0070.04310.43
5.1.20.0030.05710.45
5.1.10.0070.05310.17
5.1.00.0000.0609.95
5.0.50.0100.0408.64
5.0.40.0030.0338.57
5.0.30.0030.0338.57
5.0.20.0030.0238.57
5.0.10.0000.0208.57
5.0.00.0100.0238.57
4.4.90.0030.0308.57
4.4.80.0030.0378.57
4.4.70.0030.0278.57
4.4.60.0030.0338.57
4.4.50.0000.0338.57
4.4.40.0000.0478.57
4.4.30.0070.0378.57
4.4.20.0000.0308.57
4.4.10.0100.0308.57
4.4.00.0000.0478.57
4.3.110.0000.0208.57
4.3.100.0070.0208.57
4.3.90.0000.0178.57
4.3.80.0000.0278.57
4.3.70.0000.0178.57
4.3.60.0000.0178.57
4.3.50.0000.0178.57
4.3.40.0000.0278.57
4.3.30.0000.0208.57
4.3.20.0030.0108.57
4.3.10.0000.0178.57
4.3.00.0000.0138.57

preferences:
45.51 ms | 401 KiB | 5 Q