3v4l.org

run code in 300+ PHP versions simultaneously
<?php $subusers = [" hey", " h i", " ", "wh@t"]; foreach ($subusers as $subuser) { echo "Assess \"$subuser\":\t"; if (!strlen($subuser = trim($subuser))) { echo "* Username not entered"; } elseif (!ctype_alnum($subuser)) { echo "* Username not alphanumeric"; } echo "\n"; }

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)
8.3.70.0150.00618.43
8.3.60.0120.00618.52
8.3.50.0120.00418.16
8.3.40.0120.00618.77
8.3.30.0090.00918.53
8.3.20.0080.00018.61
8.3.10.0000.00822.05
8.3.00.0050.00323.71
8.2.180.0000.01518.41
8.2.170.0000.01422.96
8.2.160.0070.00718.97
8.2.150.0040.00424.18
8.2.140.0110.00424.66
8.2.130.0040.00420.90
8.2.120.0080.00026.35
8.2.110.0070.00320.87
8.2.100.0040.00817.64
8.2.90.0000.00817.63
8.2.80.0120.00018.64
8.2.70.0130.00417.11
8.2.60.0030.00617.63
8.2.50.0070.00018.05
8.2.40.0040.00419.48
8.2.30.0070.00020.66
8.2.20.0000.00717.94
8.2.10.0070.00018.19
8.2.00.0040.00418.07
8.1.280.0090.00925.92
8.1.270.0040.00420.23
8.1.260.0070.00026.35
8.1.250.0050.00228.09
8.1.240.0030.00623.96
8.1.230.0090.00317.70
8.1.220.0050.00317.79
8.1.210.0000.00818.77
8.1.200.0050.00517.35
8.1.190.0000.00817.22
8.1.180.0030.00618.10
8.1.170.0040.00417.62
8.1.160.0000.00718.89
8.1.150.0000.00818.86
8.1.140.0070.00018.81
8.1.130.0070.00020.26
8.1.120.0080.00017.46
8.1.110.0070.00017.45
8.1.100.0000.00717.36
8.1.90.0000.00717.50
8.1.80.0040.00417.35
8.1.70.0060.00317.48
8.1.60.0030.00617.55
8.1.50.0040.00417.40
8.1.40.0040.00417.54
8.1.30.0040.00417.61
8.1.20.0000.00717.68
8.1.10.0000.00917.42
8.1.00.0000.00717.50
8.0.300.0040.00418.77
8.0.290.0060.00316.75
8.0.280.0030.00318.45
8.0.270.0070.00017.26
8.0.260.0060.00020.14
8.0.250.0050.00316.99
8.0.240.0000.00717.02
8.0.230.0070.00016.89
8.0.220.0000.00616.82
8.0.210.0030.00316.86
8.0.200.0000.00916.98
8.0.190.0000.00717.02
8.0.180.0050.00316.84
8.0.170.0060.00316.80
8.0.160.0090.00016.79
8.0.150.0060.00316.81
8.0.140.0040.00416.81
8.0.130.0030.00613.41
8.0.120.0040.00416.88
8.0.110.0040.00416.95
8.0.100.0000.00716.88
8.0.90.0050.00216.84
8.0.80.0000.01716.94
8.0.70.0050.00316.77
8.0.60.0040.00416.86
8.0.50.0000.00816.94
8.0.30.0090.01117.07
8.0.20.0120.01217.40
8.0.10.0040.00416.83
8.0.00.0100.00816.61
7.4.330.0050.00015.55
7.4.320.0000.00616.41
7.4.300.0040.00416.45
7.4.290.0050.00216.65
7.4.280.0000.00716.50
7.4.270.0070.00016.59
7.4.260.0060.00616.61
7.4.250.0000.00816.49
7.4.240.0070.00016.60
7.4.230.0070.00016.41
7.4.220.0000.00716.55
7.4.210.0080.01216.59
7.4.200.0000.00716.35
7.4.160.0100.00716.42
7.4.140.0070.01217.86
7.4.130.0060.01916.48
7.4.120.0110.00816.47
7.4.110.0100.00716.55
7.4.100.0070.01016.41
7.4.90.0040.01416.51
7.4.80.0070.01019.39
7.4.70.0140.00516.29
7.4.60.0070.01016.48
7.4.50.0030.01016.59
7.4.40.0080.01116.57
7.4.00.0030.01315.02
7.3.330.0070.00013.06
7.3.320.0050.00013.05
7.3.310.0000.00716.26
7.3.300.0030.00316.21
7.3.290.0040.00416.21
7.3.280.0040.01416.41
7.3.260.0110.01016.38
7.3.240.0100.00616.47
7.3.230.0040.02016.31
7.3.210.0070.01016.37
7.3.200.0000.01716.52
7.3.190.0130.00316.35
7.3.180.0110.00716.61
7.3.170.0120.00916.31
7.3.160.0030.01216.18
7.2.330.0120.00616.62
7.2.320.0140.00916.40
7.2.310.0060.01116.64
7.2.300.0070.01516.59
7.2.290.0110.00716.75
7.2.100.3540.01014.79
7.2.90.3240.00014.13
7.2.80.0120.00914.62
7.2.70.1220.01014.80
7.2.60.2470.01015.02
7.2.50.1310.01015.17
7.2.40.3820.00314.71
7.2.30.2430.00614.40
7.2.20.3550.00614.71
7.2.10.2080.01014.52
7.2.00.2760.00314.59
7.1.220.4050.00313.64
7.1.210.3260.00713.93
7.1.200.2780.00614.03
7.1.190.2850.01013.75
7.1.180.3810.01314.06
7.1.170.0780.01013.89
7.1.160.4270.00313.68
7.1.150.3320.01013.36
7.1.140.3980.01213.43
7.1.130.3640.00713.48
7.1.120.3930.00713.86
7.1.110.2250.00713.69
7.1.100.4830.00713.79
7.1.90.2460.00313.41
7.1.80.3470.01313.80
7.1.70.2840.01013.80
7.1.60.0500.01131.61
7.1.50.3100.01631.55
7.1.40.6780.00331.57
7.1.30.5980.00731.56
7.1.20.3890.01331.77
7.1.10.6450.00313.46
7.1.00.4160.00313.64
5.6.380.0150.00814.53

preferences:
52.34 ms | 401 KiB | 5 Q