3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "QR12345678"; var_dump( preg_match('/^[A-Z]{1,3}[0-9]{4,10}$/', $str) ); var_dump( preg_match('/^[A-Z]{1,3}?[0-9]{4,10}$/', $str) ); var_dump( preg_match('/([A-Z]{1,3})?[0-9]{4,10}$/', $str) ); var_dump( preg_match('/^([A-Z]{1,3})?[0-9]{4,10}$/', $str) ); var_dump( preg_match('/[A-Z]{0,3}[0-9]{4,10}/', $str) ); var_dump( preg_match('/([A-Z]{1,3})*[0-9]{4,10}$/', $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)
8.3.60.0060.00916.63
8.3.50.0070.01022.14
8.3.40.0070.01118.79
8.3.30.0120.00318.95
8.3.20.0080.00020.31
8.3.10.0040.00423.59
8.3.00.0000.00819.13
8.2.180.0040.01416.63
8.2.170.0100.01422.96
8.2.160.0100.00320.52
8.2.150.0030.00624.18
8.2.140.0090.00024.66
8.2.130.0060.00326.16
8.2.120.0070.00022.44
8.2.110.0070.01119.32
8.2.100.0060.00917.75
8.2.90.0040.00419.09
8.2.80.0050.00317.97
8.2.70.0040.00417.75
8.2.60.0040.00417.92
8.2.50.0040.00418.07
8.2.40.0000.00820.01
8.2.30.0080.00019.86
8.2.20.0050.00517.68
8.2.10.0030.00519.72
8.2.00.0000.01117.86
8.1.280.0150.00025.92
8.1.270.0030.00624.01
8.1.260.0050.00326.35
8.1.250.0040.01428.09
8.1.240.0000.00917.66
8.1.230.0000.01117.70
8.1.220.0030.00617.74
8.1.210.0000.00818.77
8.1.200.0060.00617.36
8.1.190.0030.00617.53
8.1.180.0060.00618.10
8.1.170.0070.00418.64
8.1.160.0030.00621.99
8.1.150.0050.00318.81
8.1.140.0000.00817.58
8.1.130.0040.00417.93
8.1.120.0040.00417.59
8.1.110.0040.00417.47
8.1.100.0050.00317.49
8.1.90.0000.00717.54
8.1.80.0000.00817.48
8.1.70.0040.00417.51
8.1.60.0040.00417.71
8.1.50.0040.00417.66
8.1.40.0050.00317.52
8.1.30.0040.00417.66
8.1.20.0080.00017.74
8.1.10.0040.00417.59
8.1.00.0060.00317.63
8.0.300.0090.00318.77
8.0.290.0000.00816.88
8.0.280.0000.00718.49
8.0.270.0040.00417.16
8.0.260.0000.00617.18
8.0.250.0000.00717.06
8.0.240.0000.00717.02
8.0.230.0030.00317.07
8.0.220.0070.00016.95
8.0.210.0030.00616.95
8.0.200.0030.00517.08
8.0.190.0040.00417.13
8.0.180.0000.00717.02
8.0.170.0060.00316.99
8.0.160.0000.00717.09
8.0.150.0040.00416.95
8.0.140.0000.00816.86
8.0.130.0030.00313.41
8.0.120.0000.00816.87
8.0.110.0050.00216.99
8.0.100.0040.00416.86
8.0.90.0000.00717.01
8.0.80.0100.01016.97
8.0.70.0000.00816.89
8.0.60.0000.00717.07
8.0.50.0030.00517.07
8.0.30.0100.01017.29
8.0.20.0080.01317.40
8.0.10.0020.00517.14
8.0.00.0040.01416.79
7.4.330.0000.00515.05
7.4.320.0030.00316.82
7.4.300.0060.00016.60
7.4.290.0040.00416.59
7.4.280.0030.00616.57
7.4.270.0070.00016.79
7.4.260.0000.00716.59
7.4.250.0030.00516.70
7.4.240.0020.00516.78
7.4.230.0000.00716.51
7.4.220.0060.01316.68
7.4.210.0040.01016.71
7.4.200.0040.00416.48
7.4.190.0040.00416.94
7.4.160.0100.00716.90
7.4.150.0130.00517.40
7.4.140.0120.00917.86
7.4.130.0090.00816.69
7.4.120.0060.01216.60
7.4.110.0090.00916.65
7.4.100.0160.00316.56
7.4.90.0000.01716.66
7.4.80.0090.01219.39
7.4.70.0130.00916.44
7.4.60.0140.00716.64
7.4.50.0060.00316.58
7.4.40.0120.00622.77
7.4.30.0130.00316.54
7.4.00.0080.00315.08
7.3.330.0050.00013.14
7.3.320.0030.00313.14
7.3.310.0000.00816.39
7.3.300.0030.00316.35
7.3.290.0110.00416.28
7.3.280.0100.00716.34
7.3.270.0100.00717.40
7.3.260.0180.00716.24
7.3.250.0080.01216.50
7.3.240.0070.01116.40
7.3.230.0170.00616.49
7.3.210.0110.00616.54
7.3.200.0110.01219.39
7.3.190.0100.01316.59
7.3.180.0030.01216.39
7.3.170.0160.00316.60
7.3.160.0040.01316.49
7.3.120.0070.00715.07
7.2.330.0100.01016.66
7.2.320.0060.01016.59
7.2.310.0040.01316.57
7.2.300.0070.01316.43
7.2.290.0130.00616.45
7.2.00.0000.01319.46
7.1.100.0080.00818.03
7.1.70.0050.00217.18
7.1.60.0110.01519.46
7.1.50.0100.01017.07
7.1.00.0030.07722.43
7.0.200.0100.00316.64
7.0.140.0030.07322.12
7.0.60.0100.04319.93
7.0.50.0100.06317.80
7.0.40.0030.06320.09
7.0.30.0470.05720.11
7.0.20.0270.07720.06
7.0.10.0070.04020.02
7.0.00.0070.06020.13
5.6.280.0030.07021.11
5.6.210.0030.04020.50
5.6.200.0200.06318.19
5.6.190.0130.08320.41
5.6.180.0230.08020.58
5.6.170.0300.07320.47
5.6.160.0170.07320.51
5.6.150.0170.06718.18
5.6.140.0070.08318.20
5.6.130.0070.05018.14
5.6.120.0030.05720.97
5.6.110.0100.05721.11
5.6.100.0070.08021.03
5.6.90.0030.07320.97
5.6.80.0100.08020.39
5.6.70.4330.03720.32
5.5.350.0170.03320.43
5.5.340.0100.05317.93
5.5.330.0100.08020.21
5.5.320.0400.06020.29
5.5.310.0230.08320.28
5.5.300.0100.05717.96
5.5.290.0100.08317.96
5.5.280.0070.07720.76
5.5.270.0070.06020.95
5.5.260.0030.06320.82
5.5.250.0000.04720.68
5.5.240.0230.06020.04
5.4.450.0200.05719.59
5.4.440.0030.06719.63
5.4.430.0670.05319.52
5.4.420.0870.06019.46
5.4.410.0230.07319.37
5.4.400.0530.04719.09
5.4.390.0670.05019.12
5.4.380.0230.05318.56
5.4.370.0300.05318.74
5.4.360.0370.04018.46
5.4.350.0270.05318.65
5.4.340.0300.05318.72
5.4.320.0060.03712.45
5.4.310.0090.03612.45
5.4.300.0050.03812.45
5.4.290.0080.05012.45
5.4.280.0100.04812.35
5.4.270.0120.03712.35
5.4.260.0110.04412.35
5.4.250.0120.04712.35
5.4.240.0080.05112.34
5.4.230.0080.05312.34
5.4.220.0080.05012.34
5.4.210.0110.04612.34
5.4.200.0110.04112.34
5.4.190.0080.04612.34
5.4.180.0080.05012.33
5.4.170.0120.04612.34
5.4.160.0080.05012.34
5.4.150.0120.04412.33
5.4.140.0120.04512.02
5.4.130.0100.04512.01
5.4.120.0160.08711.96
5.4.110.0110.05211.96
5.4.100.0070.06711.96
5.4.90.0120.07811.96
5.4.80.0110.05411.96
5.4.70.0250.07311.95
5.4.60.0600.12011.96
5.4.50.0170.08311.96
5.4.40.0190.07011.95
5.4.30.0070.06011.95
5.4.20.0110.06111.94
5.4.10.0130.05511.94
5.4.00.0130.06011.44
5.3.290.0070.03812.80
5.3.280.0110.05812.70
5.3.270.0060.06812.72
5.3.260.0200.06512.72
5.3.250.0120.06012.71
5.3.240.0130.06112.72
5.3.230.0110.06712.71
5.3.220.0110.06312.68
5.3.210.0100.06212.68
5.3.200.0120.06112.68
5.3.190.0140.05912.68
5.3.180.0130.05912.67
5.3.170.0170.05912.67
5.3.160.0100.06912.68
5.3.150.0090.05712.67
5.3.140.0060.05912.66
5.3.130.0170.10912.65
5.3.120.0190.08612.66
5.3.110.0330.11012.65
5.3.100.0130.06412.12
5.3.90.0160.06612.08
5.3.80.0110.06012.08
5.3.70.0090.05512.08
5.3.60.0140.05412.06
5.3.50.0190.06312.00
5.3.40.0140.06712.00
5.3.30.0140.06311.96
5.3.20.0180.07111.74
5.3.10.0080.05611.70
5.3.00.0110.05111.69
5.2.170.0050.0509.19
5.2.160.0120.0429.20
5.2.150.0210.0679.20
5.2.140.0100.0499.19
5.2.130.0080.0519.15
5.2.120.0080.0469.15
5.2.110.0090.0469.15
5.2.100.0090.0449.15
5.2.90.0070.0479.15
5.2.80.0070.0469.14
5.2.70.0110.0439.14
5.2.60.0100.0489.10
5.2.50.0180.0969.07
5.2.40.0430.0439.05
5.2.30.0090.0869.03
5.2.20.0100.0669.02
5.2.10.0140.0778.93
5.2.00.0230.0888.79
5.1.60.0150.0788.07
5.1.50.0100.0548.07
5.1.40.0270.1358.05
5.1.30.0090.0298.41
5.1.20.0040.0298.42
5.1.10.0050.0298.15
5.1.00.0140.0498.15
5.0.50.0050.0286.63
5.0.40.0090.0406.48
5.0.30.0080.0476.30
5.0.20.0210.0446.27
5.0.10.0130.0586.25
5.0.00.0130.0746.24
4.4.90.0060.0374.78
4.4.80.0080.0344.75
4.4.70.0240.0384.75
4.4.60.0170.0304.76
4.4.50.0080.0344.77
4.4.40.0110.0714.71
4.4.30.0080.0274.75
4.4.20.0120.0444.84
4.4.10.0040.0434.85
4.4.00.0270.0664.76
4.3.110.0050.0314.67
4.3.100.0090.0384.67
4.3.90.0060.0374.64
4.3.80.0200.1214.58
4.3.70.0070.0314.63
4.3.60.0110.0374.63
4.3.50.0110.0324.63
4.3.40.0040.0564.54
4.3.30.0030.0233.30
4.3.20.0070.0463.27
4.3.10.0090.0633.23
4.3.00.0270.01710.54

preferences:
44.86 ms | 401 KiB | 5 Q