3v4l.org

run code in 300+ PHP versions simultaneously
<?php $username = 'asd '; if (preg_match('/[^a-z_\-0-9]/i', $username) || strlen($username) < 4 || strlen($username) > 14) { echo 'empty'; }else{ echo 'no empty';}

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)
8.3.60.0150.00618.06
8.3.50.0030.01018.04
8.3.40.0110.00418.84
8.3.30.0100.00318.92
8.3.20.0040.00420.08
8.3.10.0080.00022.10
8.3.00.0040.00422.34
8.2.180.0070.01416.88
8.2.170.0070.01022.96
8.2.160.0110.00322.38
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0110.00426.16
8.2.120.0000.00819.48
8.2.110.0060.00319.43
8.2.100.0080.00418.16
8.2.90.0040.00419.10
8.2.80.0030.00617.97
8.2.70.0000.00917.75
8.2.60.0000.00817.93
8.2.50.0030.00618.22
8.2.40.0040.00420.57
8.2.30.0050.00219.34
8.2.20.0030.00617.68
8.2.10.0020.00517.86
8.2.00.0080.00017.77
8.1.270.0060.00322.05
8.1.260.0000.00726.35
8.1.250.0080.00028.09
8.1.240.0080.00022.65
8.1.230.0060.00620.38
8.1.220.0000.00917.74
8.1.210.0000.00818.77
8.1.200.0000.01017.47
8.1.190.0000.00917.22
8.1.180.0030.00618.10
8.1.170.0040.00418.62
8.1.160.0040.00418.86
8.1.150.0000.00720.13
8.1.140.0080.00017.60
8.1.130.0000.00717.83
8.1.120.0000.00717.59
8.1.110.0000.00817.61
8.1.100.0040.00417.57
8.1.90.0000.00717.66
8.1.80.0040.00417.64
8.1.70.0030.00317.42
8.1.60.0080.00017.70
8.1.50.0080.00017.53
8.1.40.0080.00017.69
8.1.30.0040.00417.64
8.1.20.0000.00817.90
8.1.10.0050.00217.66
8.1.00.0030.00617.61
8.0.300.0000.00818.77
8.0.290.0030.00516.88
8.0.280.0000.00718.46
8.0.270.0070.00017.32
8.0.260.0030.00716.96
8.0.250.0030.00417.04
8.0.240.0070.00017.11
8.0.230.0000.00817.07
8.0.220.0040.00416.92
8.0.210.0030.00517.03
8.0.200.0000.00817.10
8.0.190.0040.00417.00
8.0.180.0050.00317.05
8.0.170.0040.00417.06
8.0.160.0020.00516.98
8.0.150.0040.00416.89
8.0.140.0000.00817.02
8.0.130.0070.00013.47
8.0.120.0070.00016.83
8.0.110.0030.00616.94
8.0.100.0070.00017.05
8.0.90.0000.00716.91
8.0.80.0080.01117.03
8.0.70.0030.00517.02
8.0.60.0000.00716.85
8.0.50.0040.00416.84
8.0.30.0130.00817.30
8.0.20.0120.00717.40
8.0.10.0000.00717.03
8.0.00.0080.01016.94
7.4.330.0000.00515.04
7.4.320.0030.00316.72
7.4.300.0050.00216.85
7.4.290.0070.00016.57
7.4.280.0030.00316.80
7.4.270.0080.00016.83
7.4.260.0000.00716.69
7.4.250.0040.00416.79
7.4.240.0010.00716.73
7.4.230.0070.00016.81
7.4.220.0150.00916.67
7.4.210.0100.00616.79
7.4.200.0000.00716.74
7.4.190.0000.00716.78
7.4.160.0000.01516.72
7.4.150.0120.00617.40
7.4.140.0110.00817.86
7.4.130.0080.01216.65
7.4.120.0130.00616.81
7.4.110.0030.01916.80
7.4.100.0040.01416.86
7.4.90.0120.00616.77
7.4.80.0100.00819.39
7.4.70.0100.00716.66
7.4.60.0080.00816.79
7.4.50.0080.00016.71
7.4.40.0110.00322.77
7.4.30.0120.00416.49
7.4.00.0000.01515.00
7.3.330.0070.00013.02
7.3.320.0000.00613.14
7.3.310.0070.00016.10
7.3.300.0060.00016.13
7.3.290.0040.01016.39
7.3.280.0070.00816.24
7.3.270.0000.01717.40
7.3.260.0130.03716.31
7.3.250.0120.00716.50
7.3.240.0120.00616.31
7.3.230.0110.00616.39
7.3.210.0100.00716.30
7.3.200.0030.01319.39
7.3.190.0140.00416.55
7.3.180.0060.00916.22
7.3.170.0060.01016.67
7.3.160.0040.01216.40
7.3.120.0070.01115.04
7.3.10.0030.01016.50
7.3.00.0220.00316.29
7.2.330.0130.00416.69
7.2.320.0070.01616.77
7.2.310.0070.01516.71
7.2.300.0120.00616.61
7.2.290.0060.01016.69
7.2.130.0120.01016.99
7.2.120.0180.00916.73
7.2.110.0110.01116.44
7.2.100.0120.00916.96
7.2.90.0160.00316.72
7.2.80.0040.01516.74
7.2.70.0060.01216.46
7.2.60.0180.00416.90
7.2.50.0090.01516.88
7.2.40.0090.00917.02
7.2.30.0150.00416.95
7.2.20.0170.00416.54
7.2.10.0050.00816.84
7.2.00.0060.01318.16
7.1.250.0110.00615.77
7.1.100.0040.00718.32
7.1.70.0000.00917.16
7.1.60.0130.01019.82
7.1.50.0130.01017.09
7.1.00.0000.08022.44
7.0.200.0050.00317.03
7.0.140.0070.07022.21
7.0.60.0100.05020.03
7.0.50.0070.08017.92
7.0.40.0070.08720.00
7.0.30.0230.04320.22
7.0.20.0300.08320.11
7.0.10.0200.06720.23
7.0.00.0130.04320.22
5.6.280.0030.07321.02
5.6.210.0100.05720.50
5.6.200.0100.08318.15
5.6.190.0100.06320.41
5.6.180.2830.04320.64
5.6.170.0200.05020.38
5.6.160.0070.05320.38
5.6.150.0130.07018.12
5.6.140.0000.08718.11
5.6.130.0100.05318.12
5.6.120.0070.08321.07
5.6.110.0000.05020.98
5.6.100.0070.07020.84
5.6.90.0070.08720.94
5.6.80.0100.04720.35
5.6.70.0370.07320.38
5.5.350.0070.04320.40
5.5.340.0100.06718.00
5.5.330.0070.04320.25
5.5.320.0300.05020.45
5.5.310.0200.05020.23
5.5.300.0070.04018.02
5.5.290.0030.05717.98
5.5.280.0030.08320.87
5.5.270.0000.05720.87
5.5.260.0000.04320.83
5.5.250.0100.07720.57
5.5.240.0130.07020.32
5.4.450.0570.05719.55
5.4.440.0770.05019.27
5.4.430.0130.05019.33
5.4.420.0130.05019.35
5.4.410.0230.04319.39
5.4.400.0830.00018.69
5.4.390.0770.00018.50
5.4.380.0170.05718.69
5.4.370.0170.06018.68
5.4.360.0130.05318.71
5.4.350.0200.05018.77
5.4.340.0300.04318.53
5.4.320.0090.04012.45
5.4.310.0060.04912.45
5.4.300.0070.04212.45
5.4.290.0040.04712.45
5.4.280.0050.04212.34
5.4.270.0130.05018.65
5.4.260.0100.07018.89
5.4.250.0100.05018.93
5.4.240.0100.05718.70
5.4.230.0100.05718.64
5.4.220.0000.08718.69
5.4.210.0100.06018.99
5.4.200.0070.06718.88
5.4.190.0130.04718.87
5.4.180.0100.06318.89
5.4.170.0100.05018.99
5.4.160.0030.05718.90
5.4.150.0030.05718.76
5.4.140.0130.04716.25
5.4.130.0070.04716.46
5.4.120.0130.05716.35
5.4.110.0170.04716.35
5.4.100.0200.03716.54
5.4.90.0170.03716.53
5.4.80.0030.05316.51
5.4.70.0170.04016.18
5.4.60.0130.05716.18
5.4.50.0130.06716.41
5.4.40.0070.05016.52
5.4.30.0070.04716.45
5.4.20.0170.03716.20
5.4.10.0170.04016.46
5.4.00.0030.05015.92
5.3.290.0100.04512.80
5.3.280.0270.05314.59
5.3.270.0200.06714.38
5.3.260.0130.05014.65
5.3.250.0100.05014.61
5.3.240.0130.04314.61
5.3.230.0030.05714.61
5.3.220.0130.06714.55
5.3.210.0100.05314.45
5.3.200.0130.04714.57
5.3.190.0170.06314.43
5.3.180.0130.06714.33
5.3.170.0100.04714.39
5.3.160.0000.05714.47
5.3.150.0100.05014.71
5.3.140.0130.04314.39
5.3.130.0130.06714.24
5.3.120.0130.04714.55
5.3.110.0170.04314.54
5.3.100.0170.04013.90
5.3.90.0030.07713.79
5.3.80.0130.06314.01
5.3.70.0130.05313.90
5.3.60.0100.05314.04
5.3.50.0130.04713.96
5.3.40.0100.04313.64
5.3.30.0130.05313.95
5.3.20.0130.05713.63
5.3.10.0000.05313.51
5.3.00.0170.04013.65
5.2.170.0070.04011.29
5.2.160.0030.06311.29
5.2.150.0070.04011.05
5.2.140.0070.04311.14
5.2.130.0100.05311.11
5.2.120.0030.05711.05
5.2.110.0070.03710.86
5.2.100.0030.04310.93
5.2.90.0070.03711.06
5.2.80.0100.05011.11
5.2.70.0070.04711.01
5.2.60.0100.05310.96
5.2.50.0070.04011.11
5.2.40.0070.05010.77
5.2.30.0030.04310.99
5.2.20.0030.06011.05
5.2.10.0100.03010.93
5.2.00.0030.05710.55
5.1.60.0130.0409.95
5.1.50.0070.0439.93
5.1.40.0000.04010.04
5.1.30.0030.03710.30
5.1.20.0030.03710.25
5.1.10.0100.04710.30
5.1.00.0000.04010.08
5.0.50.0100.0338.59
5.0.40.0070.0238.55
5.0.30.0030.0578.13
5.0.20.0030.0278.02
5.0.10.0070.0378.16
5.0.00.0000.0438.38
4.4.90.0000.0237.07
4.4.80.0030.0307.07
4.4.70.0030.0207.07
4.4.60.0000.0337.07
4.4.50.0130.0177.07
4.4.40.0000.0477.07
4.4.30.0070.0177.07
4.4.20.0000.0237.07
4.4.10.0000.0237.07
4.4.00.0030.0337.07
4.3.110.0100.0177.07
4.3.100.0130.0177.07
4.3.90.0030.0207.07
4.3.80.0030.0307.07
4.3.70.0000.0237.07
4.3.60.0070.0237.07
4.3.50.0030.0207.07
4.3.40.0070.0307.07
4.3.30.0070.0177.07
4.3.20.0030.0207.07
4.3.10.0070.0207.07
4.3.00.0070.0277.77

preferences:
63.93 ms | 400 KiB | 5 Q