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.address 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)
8.3.60.0120.00618.31
8.3.50.0110.00723.02
8.3.40.0070.00718.59
8.3.30.0040.01119.09
8.3.20.0070.00020.16
8.3.10.0040.00423.51
8.3.00.0000.00817.75
8.2.180.0150.00018.38
8.2.170.0100.00322.96
8.2.160.0040.01120.48
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0000.00721.29
8.2.110.0030.00722.13
8.2.100.0080.00419.70
8.2.90.0040.00418.96
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0040.00417.91
8.2.50.0060.00318.07
8.2.40.0040.00418.28
8.2.30.0030.00518.00
8.2.20.0040.00417.76
8.2.10.0050.00317.97
8.2.00.0050.00317.83
8.1.280.0090.00625.92
8.1.270.0040.00423.96
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0100.00024.02
8.1.230.0090.00319.06
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0060.00317.38
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0040.00718.47
8.1.160.0050.00321.89
8.1.150.0000.00718.90
8.1.140.0050.00217.50
8.1.130.0000.00817.90
8.1.120.0040.00417.56
8.1.110.0040.00417.50
8.1.100.0070.00017.55
8.1.90.0000.00717.61
8.1.80.0030.00417.45
8.1.70.0000.00717.52
8.1.60.0030.00517.67
8.1.50.0080.00017.61
8.1.40.0050.00317.53
8.1.30.0090.00017.77
8.1.20.0060.00617.60
8.1.10.0080.00017.63
8.1.00.0040.00417.61
8.0.300.0070.00018.77
8.0.290.0000.00716.88
8.0.280.0070.00018.39
8.0.270.0070.00017.29
8.0.260.0000.00717.27
8.0.250.0000.00717.10
8.0.240.0040.00417.15
8.0.230.0070.00017.01
8.0.220.0040.00416.97
8.0.210.0070.00017.03
8.0.200.0030.00317.02
8.0.190.0050.00317.06
8.0.180.0050.00316.99
8.0.170.0040.00417.05
8.0.160.0030.00416.88
8.0.150.0000.00816.88
8.0.140.0060.00616.93
8.0.130.0050.00013.42
8.0.120.0080.00017.04
8.0.110.0040.00416.91
8.0.100.0070.00016.86
8.0.90.0000.00716.90
8.0.80.0090.00917.05
8.0.70.0040.00417.02
8.0.60.0040.00416.99
8.0.50.0070.00017.01
8.0.30.0090.01017.30
8.0.20.0110.00817.40
8.0.10.0040.00417.05
8.0.00.0120.00617.01
7.4.330.0000.00515.00
7.4.320.0000.00616.79
7.4.300.0000.00716.66
7.4.290.0030.00416.68
7.4.280.0030.00516.76
7.4.270.0030.00316.59
7.4.260.0000.00816.56
7.4.250.0040.00416.70
7.4.240.0080.00016.70
7.4.230.0040.00416.67
7.4.220.0120.00616.79
7.4.210.0090.00616.75
7.4.200.0000.00716.48
7.4.160.0090.00616.66
7.4.150.0110.00817.40
7.4.140.0070.01217.86
7.4.130.0110.00616.58
7.4.120.0090.01016.70
7.4.110.0030.01416.61
7.4.100.0150.00316.74
7.4.90.0040.01416.74
7.4.80.0030.01419.39
7.4.70.0090.01216.74
7.4.60.0030.01316.72
7.4.50.0000.00416.54
7.4.40.0090.00616.67
7.4.30.0030.01316.70
7.4.00.0030.01415.07
7.3.330.0050.00013.27
7.3.320.0000.00513.27
7.3.310.0030.00316.25
7.3.300.0040.00416.14
7.3.290.0090.00616.35
7.3.280.0070.01116.30
7.3.270.0140.00417.40
7.3.260.0100.01016.80
7.3.250.0060.01316.43
7.3.240.0060.01016.39
7.3.230.0120.00616.73
7.3.210.0150.00916.68
7.3.200.0110.01119.39
7.3.190.0170.00016.47
7.3.180.0100.00716.38
7.3.170.0120.00916.52
7.3.160.0170.00016.45
7.3.120.0030.01314.78
7.3.110.0140.00314.91
7.3.100.0060.01014.89
7.3.90.0070.00714.84
7.3.80.0030.01014.88
7.3.70.0070.01014.93
7.3.60.0090.00015.02
7.3.50.0030.01214.97
7.3.40.0000.01414.89
7.3.30.0060.00914.85
7.3.20.0050.00516.80
7.3.10.0110.00516.58
7.3.00.0090.01116.60
7.2.330.0070.01116.65
7.2.320.0080.01216.62
7.2.310.0120.00816.59
7.2.300.0070.01016.74
7.2.290.0140.00316.63
7.2.250.0080.00815.13
7.2.240.0080.00815.15
7.2.230.0090.00614.85
7.2.220.0080.00415.29
7.2.210.0000.01314.82
7.2.200.0060.01215.21
7.2.190.0040.01115.25
7.2.180.0030.01315.17
7.2.170.0040.00815.15
7.2.130.0310.00316.84
7.2.120.0190.01016.13
7.2.110.0210.00816.58
7.2.100.0170.01016.41
7.2.90.0140.01216.43
7.2.80.0110.00816.30
7.2.70.0280.00717.02
7.2.60.0120.00916.69
7.2.50.0190.00416.56
7.2.40.0270.01016.63
7.2.30.0100.01016.70
7.2.20.0140.00716.76
7.2.10.0120.00816.45
7.2.00.0070.00718.08
7.1.330.0100.00316.02
7.1.320.0030.01015.86
7.1.310.0090.00615.87
7.1.300.0070.00715.97
7.1.290.0000.01315.95
7.1.280.0040.01115.77
7.1.270.0060.00315.59
7.1.260.0070.00315.70
7.1.250.0110.01115.66
7.1.200.0000.01215.90
7.1.100.0040.00418.31
7.1.70.0030.00717.02
7.1.60.0100.01019.40
7.1.50.0070.00716.98
7.1.00.0070.07322.46
7.0.200.0040.00416.95
7.0.140.0030.07722.09
7.0.60.0100.08319.90
7.0.50.0070.05317.90
7.0.40.0130.07720.33
7.0.30.0430.05320.32
7.0.20.0230.05720.33
7.0.10.0030.09020.35
7.0.00.0170.06320.13
5.6.280.0030.07321.14
5.6.210.0130.07720.74
5.6.200.0100.07318.19
5.6.190.0070.07020.61
5.6.180.0270.04320.49
5.6.170.0270.06720.49
5.6.160.0030.04720.44
5.6.150.0200.07318.12
5.6.140.0100.06018.15
5.6.130.0100.09718.20
5.6.120.0130.07721.06
5.6.110.0130.07721.11
5.6.100.0070.07020.95
5.6.90.0130.08021.01
5.6.80.0030.08320.52
5.5.350.0330.07020.49
5.5.340.0100.06718.02
5.5.330.0030.08720.38
5.5.320.0430.06320.24
5.5.310.0270.06320.25
5.5.300.0030.06718.07
5.5.290.0130.07717.92
5.5.280.0100.07320.76
5.5.270.0100.06720.72
5.5.260.0100.08020.83
5.5.250.0030.06720.49
5.5.240.0270.06320.25
5.4.450.0270.04319.57
5.4.440.0170.04019.10
5.4.430.0570.04319.23
5.4.420.0400.03719.54
5.4.410.0200.04319.13
5.4.400.0030.04318.81
5.4.390.0170.04719.08
5.4.380.0370.05718.62
5.4.370.0300.05718.50
5.4.360.0400.05718.49
5.4.350.0370.05318.61
5.4.340.0270.06318.57
5.4.320.0080.03912.45
5.4.310.0060.03712.45
5.4.300.0050.03912.45
5.4.290.0040.04012.45
5.4.280.0030.04212.35
5.4.270.0050.03612.35
5.4.260.0050.03812.35
5.4.250.0060.03612.35
5.4.240.0030.03812.34
5.4.230.0050.03912.34
5.4.220.0080.03512.34
5.4.210.0060.03412.34
5.4.200.0070.03612.34
5.4.190.0060.04112.33
5.4.180.0080.03412.33
5.4.170.0050.03612.34
5.4.160.0040.03712.34
5.4.150.0060.03612.34
5.4.140.0060.03612.02
5.4.130.0060.03512.01
5.4.120.0100.03111.97
5.4.110.0080.03411.96
5.4.100.0050.03611.96
5.4.90.0080.04111.96
5.4.80.0080.03711.96
5.4.70.0040.03611.96
5.4.60.0050.03811.96
5.4.50.0050.03611.96
5.4.40.0070.04211.95
5.4.30.0070.03411.95
5.4.20.0070.03511.95
5.4.10.0070.03811.95
5.4.00.0070.03511.43
5.3.290.0070.04312.80
5.3.280.0050.03912.71
5.3.270.0070.03912.72
5.3.260.0060.04012.72
5.3.250.0030.04112.72
5.3.240.0060.03812.72
5.3.230.0050.04012.71
5.3.220.0050.03912.68
5.3.210.0130.03212.68
5.3.200.0050.03712.68
5.3.190.0040.04512.68
5.3.180.0060.04012.67
5.3.170.0070.03512.67
5.3.160.0080.03412.68
5.3.150.0040.03912.68
5.3.140.0050.03612.66
5.3.130.0060.03812.66
5.3.120.0070.03712.66
5.3.110.0100.03512.66
5.3.100.0070.03512.12
5.3.90.0060.03512.09
5.3.80.0100.03212.08
5.3.70.0070.03512.07
5.3.60.0060.04012.07
5.3.50.0080.03912.00
5.3.40.0050.03712.00
5.3.30.0030.04311.95
5.3.20.0090.03311.73
5.3.10.0050.03511.70
5.3.00.0050.03711.69
5.2.170.0050.0299.19
5.2.160.0040.0289.19
5.2.150.0040.0329.19
5.2.140.0060.0299.18
5.2.130.0060.0279.14
5.2.120.0040.0299.15
5.2.110.0030.0309.15
5.2.100.0040.0299.15
5.2.90.0050.0299.15
5.2.80.0040.0319.14
5.2.70.0020.0339.14
5.2.60.0040.0319.09
5.2.50.0070.0289.07
5.2.40.0050.0279.05
5.2.30.0040.0309.03
5.2.20.0050.0299.03
5.2.10.0030.0298.95
5.2.00.0080.0278.81
5.1.60.0070.0218.09
5.1.50.0060.0238.09
5.1.40.0030.0268.07
5.1.30.0020.0288.43
5.1.20.0060.0248.44
5.1.10.0050.0248.17
5.1.00.0030.0278.16
5.0.50.0040.0206.64
5.0.40.0030.0206.50
5.0.30.0020.0336.32
5.0.20.0040.0206.29
5.0.10.0060.0176.26
5.0.00.0030.0316.25
4.4.90.0010.0174.78
4.4.80.0020.0164.75
4.4.70.0020.0164.75
4.4.60.0030.0154.76
4.4.50.0030.0144.77
4.4.40.0030.0264.70
4.4.30.0040.0164.76
4.4.20.0000.0184.85
4.4.10.0020.0164.85
4.4.00.0030.0244.75
4.3.110.0030.0154.67
4.3.100.0040.0134.66
4.3.90.0010.0164.63
4.3.80.0030.0244.58
4.3.70.0030.0144.63
4.3.60.0020.0154.63
4.3.50.0030.0154.63
4.3.40.0030.0234.54
4.3.30.0030.0153.31
4.3.20.0010.0173.29
4.3.10.0030.0143.24
4.3.00.0000.01715.96

preferences:
45.05 ms | 401 KiB | 5 Q