3v4l.org

run code in 300+ PHP versions simultaneously
<?php $username = ''; 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)
8.3.60.0040.01818.39
8.3.50.0120.00822.11
8.3.40.0110.00418.59
8.3.30.0070.00719.04
8.3.20.0040.00420.16
8.3.10.0000.00822.04
8.3.00.0040.00422.46
8.2.180.0140.00416.88
8.2.170.0110.00422.96
8.2.160.0130.00320.50
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00419.48
8.2.110.0000.00822.23
8.2.100.0040.00819.39
8.2.90.0000.00719.27
8.2.80.0080.00017.97
8.2.70.0000.00817.75
8.2.60.0080.00017.80
8.2.50.0040.00418.07
8.2.40.0040.00418.16
8.2.30.0030.00618.03
8.2.20.0040.00417.81
8.2.10.0050.00217.74
8.2.00.0090.00017.93
8.1.280.0120.00625.92
8.1.270.0040.00422.02
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0050.00523.73
8.1.230.0000.01119.16
8.1.220.0030.00617.74
8.1.210.0030.00518.77
8.1.200.0060.00317.25
8.1.190.0000.00817.41
8.1.180.0100.00018.56
8.1.170.0040.00418.65
8.1.160.0040.00422.03
8.1.150.0040.00418.66
8.1.140.0000.00717.66
8.1.130.0030.00317.85
8.1.120.0000.00717.51
8.1.110.0000.00717.49
8.1.100.0040.00417.64
8.1.90.0030.00317.56
8.1.80.0070.00017.52
8.1.70.0070.00017.55
8.1.60.0040.00417.67
8.1.50.0000.00717.66
8.1.40.0040.00417.66
8.1.30.0040.00417.63
8.1.20.0040.00417.81
8.1.10.0040.00417.62
8.1.00.0000.00817.57
8.0.300.0030.00318.77
8.0.290.0040.00417.18
8.0.280.0030.00318.33
8.0.270.0030.00317.16
8.0.260.0030.00616.89
8.0.250.0030.00317.00
8.0.240.0070.00017.08
8.0.230.0040.00417.08
8.0.220.0030.00317.02
8.0.210.0000.00816.92
8.0.200.0050.00217.10
8.0.190.0000.00816.97
8.0.180.0040.00417.05
8.0.170.0080.00016.97
8.0.160.0000.00817.01
8.0.150.0040.00416.93
8.0.140.0030.00616.95
8.0.130.0080.00013.46
8.0.120.0060.00316.86
8.0.110.0000.00816.91
8.0.100.0000.00716.88
8.0.90.0000.00716.93
8.0.80.0080.00817.10
8.0.70.0000.00916.98
8.0.60.0040.00417.10
8.0.50.0000.00717.10
8.0.30.0140.00617.14
8.0.20.0070.01117.42
8.0.10.0040.00417.04
8.0.00.0090.00716.91
7.4.330.0000.00515.14
7.4.320.0000.00616.73
7.4.300.0030.00316.79
7.4.290.0030.00316.82
7.4.280.0060.00016.84
7.4.270.0000.00716.70
7.4.260.0040.00416.72
7.4.250.0040.00416.58
7.4.240.0040.00316.77
7.4.230.0000.00716.76
7.4.220.0070.01816.82
7.4.210.0070.00716.79
7.4.200.0050.00316.84
7.4.190.0030.00316.86
7.4.160.0060.00916.52
7.4.150.0140.00317.40
7.4.140.0220.01317.86
7.4.130.0120.00916.79
7.4.120.0080.00916.74
7.4.110.0060.01216.45
7.4.100.0100.00716.60
7.4.90.0090.00916.84
7.4.80.0110.00619.39
7.4.70.0030.01316.75
7.4.60.0130.00616.71
7.4.50.0080.00016.60
7.4.40.0120.00322.77
7.4.30.0150.00016.73
7.4.00.0030.01214.92
7.3.330.0060.00313.24
7.3.320.0000.00513.25
7.3.310.0000.00716.41
7.3.300.0000.00716.46
7.3.290.0090.00616.38
7.3.280.0110.00816.39
7.3.270.0100.00717.40
7.3.260.0150.00616.40
7.3.250.0090.00816.60
7.3.240.0000.01616.81
7.3.230.0100.00716.62
7.3.210.0100.00616.63
7.3.200.0090.01319.39
7.3.190.0160.00716.62
7.3.180.0060.00916.52
7.3.170.0110.00416.50
7.3.160.0100.01016.53
7.3.120.0000.01514.72
7.2.330.0110.00616.79
7.2.320.0100.01016.76
7.2.310.0060.01716.70
7.2.300.0030.02016.78
7.2.290.0100.00616.71
7.2.00.0070.01019.27
7.1.100.0000.01118.09
7.1.70.0000.00717.21
7.1.60.0070.01819.82
7.1.50.0090.01516.84
7.1.00.0070.07322.45
7.0.200.0060.00616.64
7.0.140.0000.07722.05
7.0.60.0030.04019.96
7.0.50.0030.04017.80
7.0.40.0130.03720.26
7.0.30.0200.04020.02
7.0.20.0270.05020.31
7.0.10.0200.07720.03
7.0.00.0130.07320.31
5.6.280.0070.07020.78
5.6.210.0170.04720.46
5.6.200.0070.08018.22
5.6.190.0070.04320.45
5.6.180.4030.05020.41
5.6.170.0370.06720.54
5.6.160.0130.08020.49
5.6.150.0030.06718.11
5.6.140.0130.04018.21
5.6.130.0070.08018.07
5.6.120.0100.04721.01
5.6.110.0100.08321.06
5.6.100.0070.05021.07
5.6.90.0200.07321.10
5.6.80.0100.05320.38
5.6.70.0300.06320.51
5.5.350.0000.08320.41
5.5.340.0070.08018.02
5.5.330.0130.07020.43
5.5.320.0200.04320.28
5.5.310.0230.08020.50
5.5.300.0100.07717.98
5.5.290.0070.07718.00
5.5.280.0070.04020.88
5.5.270.0130.07320.78
5.5.260.0100.04020.86
5.5.250.0030.04320.46
5.5.240.0000.08720.22
5.4.450.0030.08019.41
5.4.440.0030.05019.54
5.4.430.0070.07719.40
5.4.420.0030.06719.57
5.4.410.0030.07019.11
5.4.400.0070.05318.79
5.4.390.0070.04319.09
5.4.380.0030.08019.09
5.4.370.0030.05719.25
5.4.360.0070.04718.79
5.4.350.0000.06018.88
5.4.340.0070.05319.16
5.4.320.0030.07719.13
5.4.310.0130.05018.81
5.4.300.0030.07719.24
5.4.290.0030.06318.89
5.4.280.0070.07719.08
5.4.270.0030.05319.21
5.4.260.0070.07019.08
5.4.250.0070.07319.07
5.4.240.0030.04319.20
5.4.230.0170.03719.21
5.4.220.0030.05019.08
5.4.210.0030.07318.88
5.4.200.0070.07719.23
5.4.190.0030.07319.24
5.4.180.0030.03718.87
5.4.170.0030.03719.07
5.4.160.0000.04019.22
5.4.150.0000.04019.06
5.4.140.0000.03716.27
5.4.130.0030.03316.15
5.4.120.0070.03016.37
5.4.110.0030.03316.30
5.4.100.0000.03716.43
5.4.90.0000.03716.06
5.4.80.0030.05016.29
5.4.70.0000.03716.04
5.4.60.0000.03716.32
5.4.50.0000.03316.03
5.4.40.0000.03316.38
5.4.30.0030.05016.04
5.4.20.0000.03316.21
5.4.10.0000.03316.45
5.4.00.0000.03715.82
5.3.290.0070.07714.59
5.3.280.0030.08014.50
5.3.270.0030.03714.64
5.3.260.0030.03314.50
5.3.250.0000.04314.43
5.3.240.0000.03714.54
5.3.230.0000.04014.68
5.3.220.0030.03314.50
5.3.210.0030.03314.65
5.3.200.0000.03714.54
5.3.190.0000.03714.59
5.3.180.0100.03014.54
5.3.170.0030.04014.61
5.3.160.0000.03714.51
5.3.150.0000.03714.41
5.3.140.0000.03714.58
5.3.130.0000.04314.38
5.3.120.0030.04314.39
5.3.110.0000.03714.37
5.3.100.0000.04013.91
5.3.90.0030.03713.89
5.3.80.0000.03313.85
5.3.70.0000.03713.96
5.3.60.0030.03313.83
5.3.50.0000.03713.89
5.3.40.0000.04013.80
5.3.30.0030.03313.95
5.3.20.0000.04013.60
5.3.10.0000.03313.49
5.3.00.0030.03013.75
5.2.170.0030.02712.01
5.2.160.0000.03012.01
5.2.150.0030.02712.01
5.2.140.0000.03012.01
5.2.130.0030.02312.01
5.2.120.0030.03012.01
5.2.110.0000.02712.01
5.2.100.0030.02312.01
5.2.90.0030.02312.01
5.2.80.0000.03012.01
5.2.70.0000.03012.01
5.2.60.0030.03012.01
5.2.50.0000.03712.01
5.2.40.0000.03312.01
5.2.30.0000.03312.01
5.2.20.0000.05712.01
5.2.10.0030.04712.01
5.2.00.0000.03712.01
5.1.60.0000.05712.01
5.1.50.0000.03012.01
5.1.40.0030.04312.01
5.1.30.0000.03012.01
5.1.20.0030.03012.01
5.1.10.0000.05712.01
5.1.00.0000.06012.01
5.0.50.0100.02712.01
5.0.40.0070.02712.01
5.0.30.0070.05012.01
5.0.20.0030.03312.01
5.0.10.0030.04012.01
5.0.00.0070.05712.01
4.4.90.0000.01312.01
4.4.80.0000.01712.01
4.4.70.0000.03712.01
4.4.60.0000.03712.01
4.4.50.0070.02312.01
4.4.40.0070.02312.01
4.4.30.0070.03012.01
4.4.20.0000.02012.01
4.4.10.0000.03712.01
4.4.00.0000.03012.01
4.3.110.0000.03712.01
4.3.100.0000.03312.01
4.3.90.0000.02712.01
4.3.80.0030.04712.01
4.3.70.0000.03712.01
4.3.60.0000.02312.01
4.3.50.0000.02712.01
4.3.40.0000.05012.01
4.3.30.0030.02712.01
4.3.20.0000.02312.01
4.3.10.0030.01712.01
4.3.00.0070.01712.01

preferences:
50.51 ms | 400 KiB | 5 Q