3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern = "/^[a-zA-Z0-9._-]+@[a-zA-Z0-9-]+\.[a-zA-Z.]{2,5}$/"; $pattern = "/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$/"; $replacement = "**************"; echo preg_replace($pattern, $replacement, "I want to replace this.is@an.email.com with stars"); echo preg_replace("/a/", "A", "I want to capitalise all A's");

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)
8.3.60.0090.00918.31
8.3.50.0120.00422.90
8.3.40.0110.00418.78
8.3.30.0100.00319.12
8.3.20.0040.00420.34
8.3.10.0040.00423.65
8.3.00.0080.00017.63
8.2.180.0140.00018.31
8.2.170.0040.01122.96
8.2.160.0140.00020.33
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0030.00321.11
8.2.110.0050.00521.08
8.2.100.0070.00417.84
8.2.90.0040.00417.97
8.2.80.0050.00317.97
8.2.70.0040.00717.50
8.2.60.0040.00418.04
8.2.50.0040.00418.07
8.2.40.0000.00818.08
8.2.30.0000.00717.98
8.2.20.0040.00417.84
8.2.10.0070.00017.94
8.2.00.0000.00817.85
8.1.280.0140.00025.92
8.1.270.0030.00623.83
8.1.260.0050.00226.35
8.1.250.0040.00428.09
8.1.240.0090.00022.48
8.1.230.0070.00321.02
8.1.220.0080.00017.74
8.1.210.0080.00018.80
8.1.200.0030.00617.50
8.1.190.0060.00317.22
8.1.180.0080.00318.10
8.1.170.0160.00018.11
8.1.160.0060.00321.93
8.1.150.0040.00418.76
8.1.140.0000.00717.55
8.1.130.0000.00717.74
8.1.120.0040.00417.54
8.1.110.0000.00817.46
8.1.100.0040.00417.57
8.1.90.0000.00717.61
8.1.80.0000.00717.60
8.1.70.0040.00417.46
8.1.60.0040.00417.71
8.1.50.0080.00017.63
8.1.40.0030.00517.61
8.1.30.0040.00417.70
8.1.20.0100.00017.82
8.1.10.0040.00417.69
8.1.00.0040.00417.50
8.0.300.0020.00520.06
8.0.290.0060.00316.88
8.0.280.0000.00718.34
8.0.270.0040.00417.35
8.0.260.0030.00317.24
8.0.250.0000.00717.02
8.0.240.0050.00316.99
8.0.230.0000.00817.03
8.0.220.0000.00716.99
8.0.210.0030.00316.98
8.0.200.0060.00017.06
8.0.190.0030.00516.92
8.0.180.0070.00016.90
8.0.170.0080.00016.93
8.0.160.0070.00017.04
8.0.150.0000.00716.95
8.0.140.0000.00916.99
8.0.130.0040.00413.33
8.0.120.0050.00216.87
8.0.110.0040.00417.04
8.0.100.0040.00417.06
8.0.90.0050.00216.89
8.0.80.0070.01017.05
8.0.70.0050.00316.99
8.0.60.0000.00916.80
8.0.50.0030.00517.04
8.0.30.0100.01117.20
8.0.20.0090.01217.44
8.0.10.0050.00317.13
8.0.00.0110.00716.93
7.4.330.0030.00315.00
7.4.320.0000.00616.56
7.4.300.0030.00316.61
7.4.290.0030.00316.77
7.4.280.0040.00416.61
7.4.270.0040.00416.68
7.4.260.0000.00716.59
7.4.250.0030.00616.76
7.4.240.0020.00516.68
7.4.230.0000.00816.86
7.4.220.0130.00716.77
7.4.210.0180.00316.63
7.4.200.0070.00016.75
7.4.160.0100.00616.35
7.4.150.0070.01117.40
7.4.140.0110.01117.86
7.4.130.0160.01316.83
7.4.120.0130.00716.68
7.4.110.0140.00316.74
7.4.100.0060.01216.80
7.4.90.0090.00916.75
7.4.80.0090.00919.39
7.4.70.0110.00716.49
7.4.60.0140.00316.61
7.4.50.0030.00316.50
7.4.40.0100.00716.70
7.4.30.0100.00716.66
7.4.00.0080.01015.01
7.3.330.0060.00013.13
7.3.320.0000.00613.19
7.3.310.0000.00716.25
7.3.300.0000.00716.30
7.3.290.0080.00516.34
7.3.280.0080.01016.32
7.3.270.0150.00317.40
7.3.260.0120.00916.75
7.3.240.0060.00916.67
7.3.230.0070.01016.47
7.3.210.0090.00916.37
7.3.200.0130.00319.39
7.3.190.0090.00916.47
7.3.180.0030.01216.32
7.3.170.0100.01016.42
7.3.160.0090.00916.75
7.3.120.0030.01314.88
7.3.110.0060.01115.02
7.3.100.0030.01014.97
7.3.90.0060.00614.79
7.3.80.0020.01314.82
7.3.70.0050.00714.78
7.3.60.0080.00514.95
7.3.50.0090.00414.89
7.3.40.0030.01014.81
7.3.30.0070.00714.62
7.3.20.0060.00916.85
7.3.10.0060.00816.77
7.3.00.0050.00716.66
7.2.330.0160.00716.61
7.2.320.0110.00816.38
7.2.310.0090.01016.58
7.2.300.0080.00816.61
7.2.290.0030.01316.66
7.2.250.0100.01015.00
7.2.240.0120.00615.05
7.2.230.0060.00715.21
7.2.220.0070.00714.97
7.2.210.0050.00914.93
7.2.200.0070.00815.02
7.2.190.0100.00515.03
7.2.180.0030.01114.97
7.2.170.0030.01015.17
7.2.00.0000.01019.47
7.1.330.0020.00916.04
7.1.320.0030.01016.02
7.1.310.0050.00716.04
7.1.300.0080.00615.89
7.1.290.0050.00515.87
7.1.280.0070.00715.92
7.1.270.0040.01115.83
7.1.260.0070.00716.12
7.1.100.0000.01118.22
7.1.70.0030.00517.01
7.1.60.0030.01719.40
7.1.50.0100.01017.09
7.1.00.0100.07022.42
7.0.200.0050.00516.99
7.0.140.0000.07722.07
7.0.60.0170.04019.85
7.0.50.0070.07717.86
7.0.40.0000.05720.29
7.0.30.0230.07720.19
7.0.20.0330.07720.04
7.0.10.0070.07320.18
7.0.00.0100.08320.22
5.6.280.0070.07320.81
5.6.210.0070.03720.60
5.6.200.0030.08018.22
5.6.190.0130.08020.45
5.6.180.0100.05320.21
5.6.170.0330.06320.54
5.6.160.0070.04020.49
5.6.150.0030.05018.09
5.6.140.0070.06718.21
5.6.130.0030.04018.20
5.6.120.0100.06721.11
5.6.110.0130.08020.92
5.6.100.0070.08320.89
5.6.90.0100.08320.94
5.6.80.0070.08020.37
5.5.350.0200.07020.38
5.5.340.0030.05018.01
5.5.330.0170.06020.37
5.5.320.0400.06720.32
5.5.310.0070.05020.27
5.5.300.0200.06717.98
5.5.290.0100.05317.95
5.5.280.0100.06020.64
5.5.270.0100.05320.86
5.5.260.0170.07320.88
5.5.250.0130.04320.59
5.5.240.0000.08020.28
5.4.450.0200.06719.27
5.4.440.0770.06019.61
5.4.430.0770.05019.46
5.4.420.0170.06319.45
5.4.410.0100.05719.30
5.4.400.0070.05319.02
5.4.390.0070.07019.26
5.4.380.0930.07018.72
5.4.370.0970.05018.52
5.4.360.0900.05318.74
5.4.350.1100.05718.68
5.4.340.0970.05318.61
5.4.320.0030.03812.46
5.4.310.0080.03612.45
5.4.300.0080.03312.45
5.4.290.0080.03512.45
5.4.280.0060.03412.35
5.4.270.0020.04012.35
5.4.260.0060.03612.35
5.4.250.0070.03512.34
5.4.240.0060.03412.34
5.4.230.0050.03812.34
5.4.220.0030.04212.34
5.4.210.0050.03512.34
5.4.200.0050.03812.34
5.4.190.0060.03512.34
5.4.180.0040.03812.34
5.4.170.0040.03712.35
5.4.160.0040.03812.34
5.4.150.0040.03812.34
5.4.140.0050.03812.02
5.4.130.0030.03812.01
5.4.120.0070.03611.97
5.4.110.0080.03311.96
5.4.100.0050.03811.96
5.4.90.0050.03711.96
5.4.80.0030.04611.96
5.4.70.0070.03311.96
5.4.60.0040.03611.96
5.4.50.0060.03511.96
5.4.40.0070.03811.95
5.4.30.0070.03411.94
5.4.20.0060.03611.95
5.4.10.0020.04011.95
5.4.00.0070.03511.44
5.3.290.0050.03912.80
5.3.280.0060.04012.70
5.3.270.0070.03912.72
5.3.260.0090.03612.72
5.3.250.0050.04012.72
5.3.240.0070.03612.72
5.3.230.0070.03712.71
5.3.220.0080.03512.68
5.3.210.0080.04312.68
5.3.200.0050.04712.68
5.3.190.0040.04012.68
5.3.180.0060.03612.67
5.3.170.0050.03812.67
5.3.160.0030.04112.67
5.3.150.0060.03612.67
5.3.140.0040.03812.66
5.3.130.0040.04012.66
5.3.120.0050.03912.66
5.3.110.0040.03912.65
5.3.100.0040.03712.12
5.3.90.0080.03412.08
5.3.80.0020.04112.07
5.3.70.0040.03812.07
5.3.60.0070.03812.07
5.3.50.0060.03512.00
5.3.40.0060.03612.00
5.3.30.0040.04011.95
5.3.20.0050.03811.73
5.3.10.0060.03411.70
5.3.00.0090.03311.69
5.2.170.0070.0299.19
5.2.160.0020.0329.19
5.2.150.0060.0329.19
5.2.140.0070.0299.20
5.2.130.0040.0329.15
5.2.120.0060.0289.14
5.2.110.0020.0329.16
5.2.100.0040.0299.15
5.2.90.0040.0309.15
5.2.80.0050.0309.14
5.2.70.0030.0329.15
5.2.60.0030.0319.09
5.2.50.0060.0299.07
5.2.40.0040.0299.05
5.2.30.0060.0279.03
5.2.20.0030.0399.03
5.2.10.0070.0258.95
5.2.00.0040.0298.81
5.1.60.0070.0218.09
5.1.50.0050.0248.09
5.1.40.0040.0248.07
5.1.30.0030.0288.43
5.1.20.0020.0298.45
5.1.10.0050.0258.16
5.1.00.0060.0248.16
5.0.50.0040.0216.64
5.0.40.0050.0186.50
5.0.30.0040.0316.32
5.0.20.0050.0176.29
5.0.10.0040.0196.26
5.0.00.0040.0306.25
4.4.90.0030.0154.78
4.4.80.0060.0134.76
4.4.70.0030.0154.76
4.4.60.0050.0134.75
4.4.50.0030.0154.77
4.4.40.0040.0234.70
4.4.30.0020.0164.76
4.4.20.0010.0184.84
4.4.10.0020.0214.85
4.4.00.0030.0254.76
4.3.110.0010.0174.67
4.3.100.0030.0144.66
4.3.90.0040.0134.63
4.3.80.0040.0234.58
4.3.70.0020.0154.63
4.3.60.0020.0154.63
4.3.50.0010.0174.63
4.3.40.0010.0264.54
4.3.30.0020.0163.31
4.3.20.0020.0163.29
4.3.10.0020.0153.24
4.3.00.0070.0237.77

preferences:
46.38 ms | 401 KiB | 5 Q