3v4l.org

run code in 300+ PHP versions simultaneously
<?php $length = 8; $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890'; { $chars_length = (strlen($chars) - 1); $string = $chars{rand(0, $chars_length)}; for ($i = 1; $i < $length; $i = strlen($string)) { $r = $chars{rand(0, $chars_length)}; if ($r != $string{$i - 1}) { $string .= $r; } } return $string; }

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)
7.1.70.0000.00717.28
7.1.60.0110.01419.82
7.1.50.0120.01216.63
7.1.00.0030.07322.42
7.0.200.0030.00716.66
7.0.140.0070.06322.15
7.0.110.0200.07019.88
7.0.100.0130.07720.03
7.0.90.0100.08320.02
7.0.80.0130.07719.98
7.0.70.0030.08719.88
7.0.60.0000.06719.86
7.0.50.0170.08020.40
7.0.40.0100.07719.96
7.0.30.0070.05720.03
7.0.20.0070.08020.16
7.0.10.0130.06720.08
7.0.00.0100.08320.27
5.6.280.0100.06720.80
5.6.260.0100.07720.53
5.6.250.0130.07320.68
5.6.240.0100.08020.64
5.6.230.0100.08020.48
5.6.220.0100.07320.59
5.6.210.0070.08320.66
5.6.200.0170.07020.95
5.6.190.0070.07721.13
5.6.180.0070.08321.14
5.6.170.0030.09021.09
5.6.160.0100.07721.02
5.6.150.0230.05321.29
5.6.140.0000.08720.94
5.6.130.0100.07721.05
5.6.120.0070.08721.02
5.6.110.0100.08021.02
5.6.100.0070.07321.20
5.6.90.0130.06021.10
5.6.80.0100.07720.33
5.6.70.0130.06720.49
5.6.60.0170.07020.50
5.6.50.0070.08020.52
5.6.40.0070.07720.43
5.6.30.0100.07320.32
5.6.20.0100.07720.28
5.6.10.0070.08320.47
5.6.00.0100.06320.24
5.5.380.0170.07020.35
5.5.370.0100.07720.31
5.5.360.0100.07020.40
5.5.350.0070.07720.44
5.5.340.0070.04320.86
5.5.330.0070.07320.95
5.5.320.0070.07720.95
5.5.310.0100.08020.80
5.5.300.0100.08020.80
5.5.290.0100.08020.77
5.5.280.0030.07720.86
5.5.270.0100.06720.81
5.5.260.0070.08020.90
5.5.250.0100.04320.62
5.5.240.0100.07320.19
5.5.230.0070.07720.18
5.5.220.0030.08020.18
5.5.210.0170.06720.20
5.5.200.0200.05320.32
5.5.190.0100.08020.09
5.5.180.0070.07720.36
5.5.160.0070.07320.25
5.5.150.0100.04320.23
5.5.140.0100.08020.12
5.5.130.0100.07720.09
5.5.120.0100.07320.19
5.5.110.0100.07020.24
5.5.100.0100.07320.02
5.5.90.0200.06720.27
5.5.80.0100.06720.07
5.5.70.0000.08020.21
5.5.60.0070.07720.00
5.5.50.0100.06320.09
5.5.40.0100.04020.17
5.5.30.0130.06720.23
5.5.20.0130.07020.18
5.5.10.0030.07720.11
5.5.00.0100.07320.18
5.4.450.0070.07719.25
5.4.440.0170.07719.48
5.4.430.0030.07319.44
5.4.420.0170.06719.25
5.4.410.0070.08019.13
5.4.400.0070.06019.25
5.4.390.0070.07319.07
5.4.380.0100.06719.07
5.4.370.0130.06719.25
5.4.360.0030.08719.16
5.4.350.0100.05019.00
5.4.340.0070.07319.00
5.4.320.0130.07019.16
5.4.310.0000.08018.93
5.4.300.0070.07019.16
5.4.290.0030.05018.94
5.4.280.0100.07018.91
5.4.270.0100.07019.12
5.4.260.0000.08019.02
5.4.250.0070.06719.07
5.4.240.0070.06718.94
5.4.230.0100.08019.17
5.4.220.0070.07719.02
5.4.210.0070.06018.92
5.4.200.0130.07319.11
5.4.190.0070.07018.94
5.4.180.0170.03319.24
5.4.170.0070.07318.99
5.4.160.0070.05019.15
5.4.150.0070.07018.90
5.4.140.0130.05716.41
5.4.130.0070.06716.11
5.4.120.0030.06316.43
5.4.110.0030.06716.50
5.4.100.0070.07016.49
5.4.90.0100.06016.28
5.4.80.0100.05316.32
5.4.70.0100.03716.51
5.4.60.0100.07016.38
5.4.50.0070.06716.16
5.4.40.0130.06716.54
5.4.30.0070.06716.10
5.4.20.0100.04016.50
5.4.10.0030.08016.37
5.4.00.0000.07715.86
5.3.290.0030.07314.57
5.3.280.0070.08014.63
5.3.270.0070.04014.53
5.3.260.0030.07314.68
5.3.250.0000.08314.61
5.3.240.0030.07314.53
5.3.230.0070.07014.46
5.3.220.0070.03714.41
5.3.210.0070.04014.44
5.3.200.0030.07014.43
5.3.190.0070.07314.45
5.3.180.0070.07014.50
5.3.170.0070.07014.34
5.3.160.0030.07314.48
5.3.150.0030.07014.44
5.3.140.0030.07714.63
5.3.130.0070.07314.62
5.3.120.0070.07314.41
5.3.110.0130.06714.33
5.3.100.0130.06314.04
5.3.90.0030.06713.95
5.3.80.0170.05013.90
5.3.70.0100.07013.95
5.3.60.0030.07714.06
5.3.50.0100.06714.04
5.3.40.0030.07013.96
5.3.30.0100.06713.81
5.3.20.0030.04313.76
5.3.10.0100.05713.66
5.3.00.0070.07013.64
5.2.170.0070.06311.86
5.2.160.0100.05011.86
5.2.150.0030.04711.86
5.2.140.0130.05311.86
5.2.130.0030.05311.86
5.2.120.0030.06311.86
5.2.110.0030.06711.86
5.2.100.0100.05711.86
5.2.90.0030.06311.86
5.2.80.0070.06011.86
5.2.70.0000.06311.86
5.2.60.0030.06311.86
5.2.50.0130.05311.86
5.2.40.0070.06011.86
5.2.30.0070.05011.86
5.2.20.0070.05011.86
5.2.10.0100.05711.86
5.2.00.0030.06011.86
5.1.60.0100.04011.86
5.1.50.0000.05711.86
5.1.40.0030.05311.86
5.1.30.0130.04311.86
5.1.20.0030.05711.86
5.1.10.0070.04711.86
5.1.00.0070.05711.86
5.0.50.0000.04711.86
5.0.40.0100.03011.86
5.0.30.0100.05711.86
5.0.20.0100.03311.86
5.0.10.0000.04711.86
5.0.00.0030.05711.86
4.4.90.0030.03011.86
4.4.80.0070.02011.86
4.4.70.0030.03311.86
4.4.60.0000.03711.86
4.4.50.0000.03311.86
4.4.40.0030.05011.86
4.4.30.0030.03711.86
4.4.20.0000.02011.86
4.4.10.0030.03011.86
4.4.00.0030.05311.86
4.3.110.0030.03311.86
4.3.100.0070.03011.86
4.3.90.0000.03311.86
4.3.80.0000.05711.86
4.3.70.0030.03311.86
4.3.60.0070.03011.86
4.3.50.0070.02711.86
4.3.40.0000.05011.86
4.3.30.0000.03311.86
4.3.20.0030.01711.86
4.3.10.0000.02711.86
4.3.00.0000.03711.86

preferences:
27.09 ms | 402 KiB | 5 Q