3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'dfpepito.'; $allowed = array(".", "-", "_"); var_dump(preg_match('/^[-._]|[-._]$/i', $str));

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)
8.3.60.0160.00016.50
8.3.50.0100.01016.50
8.3.40.0060.01018.88
8.3.30.0040.01218.62
8.3.20.0060.00321.64
8.3.10.0040.00423.66
8.3.00.0040.00419.56
8.2.180.0140.00418.63
8.2.170.0150.00422.96
8.2.160.0100.00321.10
8.2.150.0000.00825.66
8.2.140.0050.00324.66
8.2.130.0080.00022.28
8.2.120.0080.00026.35
8.2.110.0030.00719.27
8.2.100.0110.00017.91
8.2.90.0060.00319.20
8.2.80.0080.00017.97
8.2.70.0030.00617.75
8.2.60.0050.00317.68
8.2.50.0030.00618.10
8.2.40.0000.00720.47
8.2.30.0040.00419.13
8.2.20.0040.00417.97
8.2.10.0080.00017.92
8.2.00.0000.00718.07
8.1.280.0040.01125.92
8.1.270.0040.00423.92
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0090.00021.25
8.1.230.0080.00419.10
8.1.220.0030.00617.74
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0030.00717.23
8.1.180.0000.00818.10
8.1.170.0030.00618.64
8.1.160.0040.00418.76
8.1.150.0040.00420.13
8.1.140.0040.00419.44
8.1.130.0030.00518.81
8.1.120.0040.00417.55
8.1.110.0040.00417.52
8.1.100.0040.00417.59
8.1.90.0000.00717.51
8.1.80.0040.00417.55
8.1.70.0030.00317.43
8.1.60.0040.00417.54
8.1.50.0030.00617.60
8.1.40.0080.00017.53
8.1.30.0000.00717.75
8.1.20.0030.00617.66
8.1.10.0000.00717.58
8.1.00.0040.00417.54
8.0.300.0000.00719.94
8.0.290.0000.00716.75
8.0.280.0030.00318.27
8.0.270.0030.00317.22
8.0.260.0030.00316.89
8.0.250.0000.00717.02
8.0.240.0000.00717.11
8.0.230.0000.00916.96
8.0.220.0070.00016.82
8.0.210.0070.00016.91
8.0.200.0070.00017.07
8.0.190.0050.00317.04
8.0.180.0000.00716.96
8.0.170.0030.00316.88
8.0.160.0030.00516.93
8.0.150.0000.00716.84
8.0.140.0090.00016.93
8.0.130.0000.00513.32
8.0.120.0070.00016.98
8.0.110.0000.00817.08
8.0.100.0040.00416.97
8.0.90.0070.00016.86
8.0.80.0190.00316.86
8.0.70.0030.00516.92
8.0.60.0040.00416.96
8.0.50.0070.00016.93
8.0.30.0120.00717.22
8.0.20.0090.01217.40
8.0.10.0000.00717.07
8.0.00.0090.00917.02
7.4.330.0020.00215.55
7.4.320.0030.00316.71
7.4.300.0030.00316.75
7.4.290.0030.00616.71
7.4.280.0000.00716.75
7.4.270.0070.00016.65
7.4.260.0000.00613.48
7.4.250.0070.00016.60
7.4.240.0030.00316.77
7.4.230.0070.00016.80
7.4.220.0120.00916.68
7.4.210.0100.00716.61
7.4.200.0030.00616.64
7.4.160.0060.00916.54
7.4.150.0060.01017.40
7.4.140.0110.00617.86
7.4.130.0090.01116.60
7.4.120.0130.00916.64
7.4.110.0060.01216.66
7.4.100.0150.00316.53
7.4.90.0120.01216.68
7.4.80.0090.01319.39
7.4.70.0000.01516.63
7.4.60.0080.00816.66
7.4.50.0070.01016.57
7.4.40.0030.01316.66
7.4.30.0110.00616.50
7.4.10.0030.01414.95
7.4.00.0070.00915.07
7.3.330.0060.00013.19
7.3.320.0000.00513.14
7.3.310.0000.00716.26
7.3.300.0060.00016.30
7.3.290.0070.00916.26
7.3.280.0090.00716.28
7.3.270.0120.01217.40
7.3.260.0100.00916.49
7.3.250.0100.00916.35
7.3.240.0060.01116.37
7.3.230.0100.00716.31
7.3.210.0060.01016.45
7.3.200.0120.01216.25
7.3.190.0130.00316.55
7.3.180.0110.01116.58
7.3.170.0090.00916.23
7.3.160.0110.00616.79
7.3.130.0110.00715.25
7.3.120.0090.00514.45
7.3.110.0090.00914.78
7.3.100.0080.00714.77
7.3.90.0050.00915.05
7.3.80.0060.00714.82
7.3.70.0080.00714.80
7.3.60.0110.00414.67
7.3.50.0070.00614.89
7.3.40.0050.01014.69
7.3.30.0050.01114.80
7.3.20.0060.00816.76
7.3.10.0050.01016.59
7.3.00.0060.01016.72
7.2.330.0070.01016.59
7.2.320.0090.01216.48
7.2.310.0060.01016.68
7.2.300.0110.00916.52
7.2.290.0030.01416.70
7.2.260.0060.01215.02
7.2.250.0140.00414.83
7.2.240.0080.00514.86
7.2.230.0080.00714.94
7.2.220.0070.01115.06
7.2.210.0090.00315.12
7.2.200.0070.00914.99
7.2.190.0050.00815.16
7.2.180.0070.00714.80
7.2.170.0060.00614.95
7.2.160.0070.00514.81
7.2.150.0040.00816.65
7.2.140.0110.00116.73
7.2.130.0020.01416.80
7.2.120.0070.00716.91
7.2.110.0060.00616.90
7.2.100.0050.00916.85
7.2.90.0050.00916.78
7.2.80.0050.01016.92
7.2.70.0070.00816.90
7.2.60.0080.00716.79
7.2.50.0100.00816.88
7.2.40.0060.00516.75
7.2.30.0060.01016.86
7.2.20.0060.00516.78
7.2.10.0140.00316.91
7.2.00.0030.01117.55
7.1.330.0050.00815.77
7.1.320.0000.01416.08
7.1.310.0080.00515.67
7.1.300.0040.00615.82
7.1.290.0070.00915.90
7.1.280.0100.00515.69
7.1.270.0090.00515.56
7.1.260.0030.00815.74
7.1.250.0060.00815.62
7.1.240.0060.00315.59
7.1.230.0030.01015.98
7.1.220.0070.01115.68
7.1.210.0070.00715.63
7.1.200.0050.00815.78
7.1.190.0030.01015.79
7.1.180.0060.00915.94
7.1.170.0040.00415.67
7.1.160.0070.00715.69
7.1.150.0140.00015.70
7.1.140.0070.00716.05
7.1.130.0060.00915.61
7.1.120.0070.01015.77
7.1.110.0040.01116.00
7.1.100.0050.00317.05
7.1.90.0080.00415.80
7.1.80.0000.01016.00
7.1.70.0080.00016.59
7.1.60.0250.01724.63
7.1.50.0330.00624.43
7.1.40.0270.01424.38
7.1.30.0600.01224.21
7.1.20.0280.00824.43
7.1.10.0240.00915.37
7.1.00.0400.01315.41
7.0.330.0030.00615.36
7.0.320.0100.00315.12
7.0.310.0040.00815.38
7.0.300.0100.00715.45
7.0.290.0040.00815.56
7.0.280.0060.00615.50
7.0.270.0030.01315.47
7.0.260.0030.00515.36
7.0.250.0140.00015.55
7.0.240.0000.01215.58
7.0.230.0070.00415.38
7.0.220.0090.00615.50
7.0.210.0040.01115.69
7.0.200.0320.00715.14
7.0.190.0330.01015.31
7.0.180.0180.01015.16
7.0.170.0220.01014.98
7.0.160.0200.01315.03
7.0.150.0280.00314.99
7.0.140.0210.00615.28
7.0.130.0250.00915.17
7.0.120.0280.00815.10
7.0.110.0240.00815.04
7.0.100.0220.00515.13
7.0.90.0280.01015.20
7.0.80.0290.00415.00
7.0.70.0220.00814.94
7.0.60.0240.00414.90
7.0.50.0320.01015.14
7.0.40.0200.00914.24
7.0.30.0310.01013.98
7.0.20.0320.00714.17
7.0.10.0320.01013.95
7.0.00.0220.01114.24
5.6.400.0070.00714.23
5.6.390.0080.00414.21
5.6.380.0070.00314.47
5.6.370.0000.00914.30
5.6.360.0130.00313.91
5.6.350.0060.00314.44
5.6.340.0070.00714.38
5.6.330.0070.00714.49
5.6.320.0130.00314.12
5.6.310.0040.01114.40
5.6.300.0000.01114.54
5.6.290.0040.01114.62
5.6.280.0060.00914.54
5.6.270.0070.00714.10
5.6.260.0090.00914.31
5.6.250.0000.01114.30
5.6.240.0070.00714.37
5.6.230.0000.01514.52
5.6.220.0030.01214.38
5.6.210.0040.01114.51
5.6.200.0030.01214.29
5.6.190.0000.01114.38
5.6.180.0000.01314.14
5.6.170.0030.01014.37
5.6.160.0030.01014.26
5.6.150.0000.01314.11
5.6.140.0030.01314.38
5.6.130.0000.01214.52
5.6.120.0070.00314.19
5.6.110.0050.01114.48
5.6.100.0030.01314.36
5.6.90.0060.01214.45
5.6.80.0000.01414.06
5.6.70.0030.01014.14
5.6.60.0030.01314.29
5.6.50.0140.00013.91
5.6.40.0090.00314.14
5.6.30.0070.00714.41
5.6.20.0060.00614.21
5.6.10.0000.00914.41
5.6.00.0030.01114.13

preferences:
90.94 ms | 400 KiB | 5 Q