3v4l.org

run code in 300+ PHP versions simultaneously
<?php function validName($name) { $name_first_character = substr($name, 0, 1); if (in_array($name_first_character, array('.', '-', ' ', '_'))) { return FALSE; } return TRUE; } $names =array('My Name', 'My.Name', 'My_Name', ' My Name', '_My Name', '.My Name'); foreach($names as $name) { var_dump(validname($name)); }

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)
8.3.80.0070.00318.43
8.3.70.0120.00316.63
8.3.60.0170.00018.56
8.3.50.0120.00318.33
8.3.40.0070.00718.67
8.3.30.0040.01118.55
8.3.20.0000.00821.69
8.3.10.0000.00821.76
8.3.00.0070.00719.41
8.2.200.0060.00318.41
8.2.190.0070.00716.71
8.2.180.0090.00916.32
8.2.170.0040.01118.96
8.2.160.0160.00322.96
8.2.150.0060.00324.18
8.2.140.0000.00824.66
8.2.130.0060.00321.12
8.2.120.0050.00326.35
8.2.110.0070.00422.20
8.2.100.0040.00817.91
8.2.90.0000.00720.55
8.2.80.0050.00317.97
8.2.70.0000.00818.03
8.2.60.0000.00818.00
8.2.50.0040.00418.10
8.2.40.0050.00320.59
8.2.30.0040.00419.15
8.2.20.0040.00418.13
8.2.10.0040.00418.13
8.2.00.0000.00818.11
8.1.290.0070.00730.84
8.1.280.0110.00625.92
8.1.270.0090.00023.95
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0100.00722.46
8.1.230.0080.00320.96
8.1.220.0050.00317.74
8.1.210.0050.00318.80
8.1.200.0000.00817.35
8.1.190.0090.00017.23
8.1.180.0080.00018.10
8.1.170.0040.00418.71
8.1.160.0000.00718.80
8.1.150.0070.00019.08
8.1.140.0000.00817.74
8.1.130.0040.00417.45
8.1.120.0000.00717.39
8.1.110.0000.00717.45
8.1.100.0080.00017.40
8.1.90.0080.00017.42
8.1.80.0040.00417.48
8.1.70.0030.00317.52
8.1.60.0040.00817.48
8.1.50.0030.00617.47
8.1.40.0030.00517.45
8.1.30.0060.00617.55
8.1.20.0040.00417.59
8.1.10.0000.00817.43
8.1.00.0000.00817.32
8.0.300.0060.00319.84
8.0.290.0070.00316.75
8.0.280.0030.00318.44
8.0.270.0030.00317.25
8.0.260.0030.00316.82
8.0.250.0030.00716.98
8.0.240.0000.00816.89
8.0.230.0000.00616.95
8.0.220.0070.00016.82
8.0.210.0000.00716.91
8.0.200.0030.00316.81
8.0.190.0040.00416.98
8.0.180.0000.00716.84
8.0.170.0060.00316.88
8.0.160.0000.00716.88
8.0.150.0000.00816.91
8.0.140.0050.00316.89
8.0.130.0060.00013.28
8.0.120.0040.00416.80
8.0.110.0050.00216.80
8.0.100.0000.01016.89
8.0.90.0030.00516.72
8.0.80.0140.00716.89
8.0.70.0050.00516.78
8.0.60.0070.00016.77
8.0.50.0040.00416.89
8.0.30.0100.00817.27
8.0.20.0100.02717.40
8.0.10.0040.00416.98
8.0.00.0080.01216.82
7.4.330.0060.00016.87
7.4.320.0060.00016.63
7.4.300.0030.00316.45
7.4.290.0070.00016.65
7.4.280.0000.00716.50
7.4.270.0000.00716.54
7.4.260.0070.00316.39
7.4.250.0020.00516.46
7.4.240.0030.00316.54
7.4.230.0030.00316.68
7.4.220.0040.00416.71
7.4.210.0090.00816.59
7.4.200.0070.00016.58
7.4.160.0090.00816.43
7.4.140.0110.00617.86
7.4.130.0090.00916.59
7.4.120.0130.00616.51
7.4.110.0100.00716.66
7.4.100.0150.00916.59
7.4.90.0150.00716.55
7.4.80.0100.01419.39
7.4.70.0060.01316.50
7.4.60.0060.00916.40
7.4.50.0090.00616.39
7.4.40.0090.00916.45
7.4.10.0080.00815.09
7.4.00.0090.00714.92
7.3.330.0000.00513.16
7.3.320.0000.00513.23
7.3.310.0060.00016.16
7.3.300.0060.00016.34
7.3.290.0030.00316.34
7.3.280.0110.00716.32
7.3.260.0090.01016.45
7.3.240.0120.00716.41
7.3.230.0090.00916.45
7.3.210.0110.00616.23
7.3.200.0070.01016.56
7.3.190.0130.00616.42
7.3.180.0100.00716.38
7.3.170.0090.00616.43
7.3.160.0120.00916.52
7.3.130.0050.01214.83
7.3.120.0100.00714.89
7.3.110.0090.00914.69
7.3.100.0090.00414.63
7.3.90.0030.00714.65
7.3.80.0030.00915.12
7.3.70.0040.00914.86
7.3.60.0090.00514.57
7.3.50.0020.00814.81
7.3.40.0060.00614.49
7.3.30.0030.01214.91
7.3.20.0090.00316.61
7.3.10.0020.01116.44
7.3.00.0070.00716.64
7.2.330.0070.01116.75
7.2.320.0100.01016.81
7.2.310.0110.00716.43
7.2.300.0130.00316.42
7.2.290.0150.00716.71
7.2.260.0080.00915.25
7.2.250.0070.00914.89
7.2.240.0080.00815.15
7.2.230.0090.00615.15
7.2.220.0080.00815.10
7.2.210.0050.01014.92
7.2.200.0050.00614.86
7.2.190.0040.01215.04
7.2.180.0030.01014.96
7.2.170.0050.01114.91
7.2.160.0030.01215.11
7.2.150.0050.00916.92
7.2.140.0050.00716.98
7.2.130.0040.00916.99
7.2.120.0090.00616.83
7.2.110.0090.00716.90
7.2.100.0080.00316.94
7.2.90.0060.00916.90
7.2.80.0090.00816.94
7.2.70.0050.00916.86
7.2.60.0080.00716.91
7.2.50.0070.00716.76
7.2.40.0260.00717.27
7.2.30.0340.01217.40
7.2.20.0300.00717.24
7.2.10.0250.01017.27
7.2.00.0370.00917.29
7.1.330.0030.01015.91
7.1.320.0070.00915.60
7.1.310.0070.00815.66
7.1.300.0080.00515.78
7.1.290.0040.00415.55
7.1.280.0050.00515.90
7.1.270.0050.00715.56
7.1.260.0060.00715.84
7.1.250.0060.00415.73
7.1.240.0050.00715.62
7.1.230.0060.00615.75
7.1.220.0050.00715.79
7.1.210.0030.01115.73
7.1.200.0050.00715.85
7.1.190.0070.00815.91
7.1.180.0090.00415.88
7.1.170.0130.00215.72
7.1.160.0270.01016.04
7.1.150.0310.00816.15
7.1.140.0380.00616.06
7.1.130.0430.00916.17
7.1.120.0330.00516.18
7.1.110.0250.00615.82
7.1.100.0270.01015.74
7.1.90.0250.01315.77
7.1.80.0310.00715.87
7.1.70.0250.00615.60
7.1.60.0340.01121.66
7.1.50.0350.00721.40
7.1.40.0430.00621.24
7.1.30.0310.01021.28
7.1.20.0400.00721.32
7.1.10.0370.00715.41
7.1.00.0210.01015.36
7.0.330.0060.00515.35
7.0.320.0020.01115.31
7.0.310.0050.00915.41
7.0.300.0050.01015.27
7.0.290.0050.00915.27
7.0.280.0080.00215.25
7.0.270.0080.00615.36
7.0.260.0000.01215.19
7.0.250.0090.00315.49
7.0.240.0040.00915.46
7.0.230.0030.01015.44
7.0.220.0070.00715.40
7.0.210.0110.00315.49
7.0.200.0040.00815.15
7.0.190.0050.00715.20
7.0.180.0030.01115.50
7.0.170.0040.00915.50
7.0.160.0050.00715.41
7.0.150.0080.00715.29
7.0.140.0020.01015.24
7.0.130.0030.00915.36
7.0.120.0070.00615.28
7.0.110.0030.01015.37
7.0.100.0030.01015.15
7.0.90.0050.00815.16
7.0.80.0080.00415.30
7.0.70.0090.00415.42
7.0.60.0110.00415.39
7.0.50.0070.00715.53
7.0.40.0070.00513.12
7.0.30.0070.00913.41
7.0.20.0050.00813.40
7.0.10.0060.00613.28
7.0.00.0010.00713.36
5.6.400.0070.00514.27
5.6.390.0050.01314.12
5.6.380.0080.00614.43
5.6.370.0030.01114.22
5.6.360.0050.00914.52
5.6.350.0070.00714.16
5.6.340.0070.00414.38
5.6.330.0040.00614.24
5.6.320.0070.00514.54
5.6.310.0040.00714.25
5.6.300.0060.00914.49
5.6.290.0050.00814.22
5.6.280.0060.00814.40
5.6.270.0050.01014.32
5.6.260.0060.00814.20
5.6.250.0040.00714.23
5.6.240.0000.01114.30
5.6.230.0100.00114.39
5.6.220.0030.00814.15
5.6.210.0100.00014.31
5.6.200.0030.01114.29
5.6.190.0090.00514.20
5.6.180.0060.00614.27
5.6.170.0050.01014.15
5.6.160.0030.01014.22
5.6.150.0060.00814.26
5.6.140.0030.01114.04
5.6.130.0030.01214.24
5.6.120.0090.00314.23
5.6.110.0050.00813.98
5.6.100.0050.00714.32
5.6.90.0050.01014.31
5.6.80.0080.00314.27
5.6.70.0080.00314.06
5.6.60.0040.00914.09
5.6.50.0050.00714.03
5.6.40.0090.00314.24
5.6.30.0070.00514.27
5.6.20.0060.00914.25
5.6.10.0030.01214.24
5.6.00.0090.00414.07

preferences:
39.54 ms | 401 KiB | 5 Q