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 "\n"; 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)
8.3.40.0150.00018.79
8.3.30.0040.01119.09
8.3.20.0070.00020.30
8.3.10.0060.00323.70
8.3.00.0000.00817.50
8.2.170.0110.00422.96
8.2.160.0120.00320.27
8.2.150.0000.00724.18
8.2.140.0030.00524.66
8.2.130.0050.00326.16
8.2.120.0070.00021.02
8.2.110.0040.00421.01
8.2.100.0080.00418.03
8.2.90.0060.00318.02
8.2.80.0040.00417.97
8.2.70.0080.00817.62
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0030.00518.09
8.2.30.0050.00218.14
8.2.20.0040.00417.74
8.2.10.0000.00718.04
8.2.00.0000.00817.77
8.1.270.0130.00624.00
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00022.41
8.1.230.0100.00021.04
8.1.220.0030.00517.74
8.1.210.0000.00918.77
8.1.200.0060.00317.35
8.1.190.0040.00416.99
8.1.180.0030.00618.10
8.1.170.0030.00818.45
8.1.160.0000.00821.97
8.1.150.0000.00718.82
8.1.140.0040.00417.48
8.1.130.0040.00417.85
8.1.120.0080.00017.58
8.1.110.0000.00817.56
8.1.100.0030.00417.47
8.1.90.0040.00417.58
8.1.80.0000.00817.40
8.1.70.0090.00017.57
8.1.60.0050.00317.74
8.1.50.0000.00917.55
8.1.40.0090.00017.51
8.1.30.0040.00417.65
8.1.20.0070.00417.79
8.1.10.0060.00317.62
8.1.00.0040.00417.52
8.0.300.0000.00819.86
8.0.290.0060.00316.75
8.0.280.0070.00018.42
8.0.270.0000.00717.20
8.0.260.0030.00317.18
8.0.250.0030.00317.13
8.0.240.0000.00817.15
8.0.230.0070.00017.06
8.0.220.0040.00416.87
8.0.210.0000.00716.86
8.0.200.0050.00317.05
8.0.190.0000.00916.97
8.0.180.0000.00716.98
8.0.170.0040.00417.04
8.0.160.0000.00716.86
8.0.150.0050.00316.92
8.0.140.0090.00316.82
8.0.130.0000.00513.44
8.0.120.0050.00216.91
8.0.110.0040.00416.91
8.0.100.0040.00416.92
8.0.90.0070.00017.01
8.0.80.0090.00916.94
8.0.70.0040.00417.02
8.0.60.0060.00316.87
8.0.50.0030.00516.77
8.0.30.0100.01517.45
8.0.20.0140.00817.40
8.0.10.0030.00517.12
8.0.00.0110.00916.94
7.4.330.0060.00015.09
7.4.320.0030.00316.74
7.4.300.0030.00316.77
7.4.290.0030.00316.57
7.4.280.0000.00816.63
7.4.270.0060.00316.67
7.4.260.0000.00716.73
7.4.250.0000.00716.72
7.4.240.0030.00316.61
7.4.230.0050.00316.73
7.4.220.0110.00916.55
7.4.210.0060.00916.71
7.4.200.0070.00016.74
7.4.160.0100.00716.55
7.4.150.0100.00717.40
7.4.140.0090.00917.86
7.4.130.0070.01416.73
7.4.120.0080.01316.57
7.4.110.0130.00316.71
7.4.100.0040.01716.89
7.4.90.0070.01316.56
7.4.80.0110.00819.39
7.4.70.0040.01416.59
7.4.60.0110.00516.38
7.4.50.0040.00416.46
7.4.40.0130.00316.73
7.4.30.0080.00816.48
7.4.00.0090.00915.18
7.3.330.0000.00613.05
7.3.320.0000.00513.15
7.3.310.0030.00316.30
7.3.300.0000.00716.18
7.3.290.0030.01016.24
7.3.280.0070.00916.33
7.3.270.0090.00917.40
7.3.260.0030.01316.56
7.3.250.0070.01316.54
7.3.240.0120.00316.65
7.3.230.0170.00616.60
7.3.210.0130.01016.32
7.3.200.0100.00719.39
7.3.190.0110.00616.48
7.3.180.0070.00716.25
7.3.170.0090.00616.34
7.3.160.0060.01016.56
7.2.330.0180.00016.62
7.2.320.0110.01116.57
7.2.310.0090.00916.58
7.2.300.0130.01016.66
7.2.290.0030.01316.70
7.2.00.0070.00719.77
7.1.100.0000.01118.31
7.1.70.0000.01017.01
7.1.60.0040.01819.40
7.1.50.0070.01416.66
7.1.00.0000.08022.38
7.0.200.0080.00016.78
7.0.140.0030.07321.95
7.0.60.0100.05020.05
7.0.50.0130.08017.89
7.0.40.0070.05320.05
7.0.30.0530.07320.19
7.0.20.0270.08020.35
7.0.10.0100.08320.20
7.0.00.0070.07720.31
5.6.280.0130.06321.09
5.6.210.0200.07020.59
5.6.200.0030.08718.08
5.6.190.0070.04320.61
5.6.180.0270.06720.39
5.6.170.0270.05320.38
5.6.160.0070.09020.61
5.6.150.0030.06718.18
5.6.140.0030.06018.06
5.6.130.0070.06018.20
5.6.120.0000.04720.98
5.6.110.0070.04021.10
5.6.100.0100.05321.00
5.6.90.0070.06321.12
5.6.80.0170.04020.39
5.5.350.0230.07720.33
5.5.340.0030.04318.00
5.5.330.0000.04720.16
5.5.320.0530.06320.46
5.5.310.0230.07720.34
5.5.300.0070.05717.98
5.5.290.0000.04717.98
5.5.280.0000.05320.97
5.5.270.0100.08020.78
5.5.260.0030.09020.75
5.5.250.0170.07020.61
5.5.240.0100.03720.12
5.4.450.0100.07319.41
5.4.440.0030.05019.42
5.4.430.0030.07319.38
5.4.420.0070.04019.41
5.4.410.0030.05319.44
5.4.400.0000.04019.13
5.4.390.0070.04019.24
5.4.380.0070.07018.79
5.4.370.0030.06019.09
5.4.360.0070.06719.10
5.4.350.0000.07718.88
5.4.340.0030.07719.16
5.4.320.0030.07318.93
5.4.310.0000.06019.06
5.4.300.0030.07719.21
5.4.290.0030.07018.79
5.4.280.0070.08019.06
5.4.270.0000.06319.23
5.4.260.0100.07319.24
5.4.250.0030.08018.92
5.4.240.0030.08019.12
5.4.230.0000.07318.94
5.4.220.0000.08319.24
5.4.210.0100.03719.23
5.4.200.0030.06019.08
5.4.190.0070.06719.14
5.4.180.0030.08019.12
5.4.170.0000.04019.09
5.4.160.0100.07019.20
5.4.150.0000.06319.20
5.4.140.0000.07016.20
5.4.130.0100.05016.28
5.4.120.0000.05016.31
5.4.110.0100.03016.06
5.4.100.0000.05716.43
5.4.90.0030.07316.50
5.4.80.0030.06716.44
5.4.70.0030.06316.31
5.4.60.0070.07016.18
5.4.50.0030.06016.40
5.4.40.0000.06316.36
5.4.30.0030.05016.28
5.4.20.0070.06716.31
5.4.10.0070.06316.31
5.4.00.0070.05715.71
5.3.290.0030.07714.69
5.3.280.0030.07314.43
5.3.270.0070.03314.54
5.3.260.0030.03714.57
5.3.250.0030.05714.55
5.3.240.0100.05014.48
5.3.230.0000.05714.43
5.3.220.0070.07014.61
5.3.210.0070.04014.41
5.3.200.0030.05714.40
5.3.190.0030.07314.50
5.3.180.0000.08014.51
5.3.170.0070.06714.41
5.3.160.0000.08014.61
5.3.150.0070.07014.52
5.3.140.0030.05714.41
5.3.130.0070.07314.39
5.3.120.0070.06314.63
5.3.110.0000.08314.41
5.3.100.0100.05714.01
5.3.90.0030.07713.96
5.3.80.0070.07014.00
5.3.70.0000.07014.11
5.3.60.0000.06314.05
5.3.50.0070.06713.87
5.3.40.0070.04713.82
5.3.30.0070.06713.81
5.3.20.0000.05313.64
5.3.10.0100.03313.68
5.3.00.0000.06713.59
5.2.170.0100.05712.03
5.2.160.0030.06012.03
5.2.150.0030.06012.03
5.2.140.0070.06012.03
5.2.130.0000.04012.03
5.2.120.0130.03012.03
5.2.110.0030.06012.03
5.2.100.0030.03712.03
5.2.90.0000.06312.03
5.2.80.0030.04012.03
5.2.70.0030.06012.03
5.2.60.0000.06312.03
5.2.50.0030.05312.03
5.2.40.0100.05012.03
5.2.30.0100.05312.03
5.2.20.0030.05012.03
5.2.10.0000.04712.03
5.2.00.0000.05012.03
5.1.60.0100.04012.03
5.1.50.0000.05712.03
5.1.40.0030.05712.03
5.1.30.0030.04312.03
5.1.20.0030.04012.03
5.1.10.0000.03312.03
5.1.00.0030.02312.03
5.0.50.0000.02312.03
5.0.40.0170.03012.03
5.0.30.0000.05312.03
5.0.20.0000.03012.03
5.0.10.0030.03312.03
5.0.00.0000.04312.03
4.4.90.0000.01712.03
4.4.80.0030.03312.03
4.4.70.0030.03012.03
4.4.60.0000.03712.03
4.4.50.0000.03312.03
4.4.40.0030.05012.03
4.4.30.0030.03712.03
4.4.20.0030.02012.03
4.4.10.0000.03712.03
4.4.00.0000.04312.03
4.3.110.0030.03712.03
4.3.100.0030.02312.03
4.3.90.0070.02012.03
4.3.80.0030.05012.03
4.3.70.0000.03712.03
4.3.60.0030.03012.03
4.3.50.0000.03712.03
4.3.40.0070.04312.03
4.3.30.0000.02712.03
4.3.20.0000.03012.03
4.3.10.0000.04012.03
4.3.00.0000.03312.03

preferences:
38.28 ms | 400 KiB | 5 Q