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)
8.3.60.0110.01116.62
8.3.50.0050.01523.01
8.3.40.0150.00018.96
8.3.30.0100.00318.90
8.3.20.0040.00420.37
8.3.10.0080.00023.54
8.3.00.0040.00417.62
8.2.180.0070.00716.63
8.2.170.0070.00722.96
8.2.160.0070.00720.53
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0070.00021.08
8.2.110.0040.00422.23
8.2.100.0130.00019.89
8.2.90.0000.00719.10
8.2.80.0030.00517.97
8.2.70.0070.00317.75
8.2.60.0030.00518.04
8.2.50.0080.00018.07
8.2.40.0050.00318.02
8.2.30.0040.00417.99
8.2.20.0040.00417.72
8.2.10.0000.00717.94
8.2.00.0080.00017.77
8.1.280.0120.00325.92
8.1.270.0070.01023.96
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00623.82
8.1.230.0080.00418.95
8.1.220.0000.00817.74
8.1.210.0000.00918.77
8.1.200.0060.00317.36
8.1.190.0080.00017.22
8.1.180.0000.00918.10
8.1.170.0040.00718.61
8.1.160.0030.00521.88
8.1.150.0040.00418.81
8.1.140.0030.00617.55
8.1.130.0000.00717.82
8.1.120.0000.00717.55
8.1.110.0000.00817.61
8.1.100.0020.00517.45
8.1.90.0040.00317.46
8.1.80.0000.00717.48
8.1.70.0000.00717.51
8.1.60.0000.00817.63
8.1.50.0050.00317.68
8.1.40.0000.00817.57
8.1.30.0060.00317.74
8.1.20.0060.00617.73
8.1.10.0040.00417.66
8.1.00.0000.00817.47
8.0.300.0000.00718.77
8.0.290.0070.00016.75
8.0.280.0070.00018.47
8.0.270.0000.00817.28
8.0.260.0060.00017.27
8.0.250.0040.00417.13
8.0.240.0000.00816.98
8.0.230.0040.00416.90
8.0.220.0030.00317.01
8.0.210.0030.00417.00
8.0.200.0000.00717.05
8.0.190.0040.00416.95
8.0.180.0040.00416.88
8.0.170.0060.00316.99
8.0.160.0000.00716.89
8.0.150.0050.00216.82
8.0.140.0060.00316.85
8.0.130.0030.00313.50
8.0.120.0050.00216.87
8.0.110.0040.00416.88
8.0.100.0050.00217.03
8.0.90.0000.00816.94
8.0.80.0090.00716.95
8.0.70.0040.00417.01
8.0.60.0040.00417.02
8.0.50.0070.00016.81
8.0.30.0120.00717.37
8.0.20.0140.00917.40
8.0.10.0040.00417.10
8.0.00.0090.00816.91
7.4.330.0030.00315.00
7.4.320.0000.00616.66
7.4.300.0000.00616.70
7.4.290.0070.00016.66
7.4.280.0070.00016.64
7.4.270.0080.00016.66
7.4.260.0050.00316.57
7.4.250.0000.00716.64
7.4.240.0020.00616.73
7.4.230.0040.00416.79
7.4.220.0090.01016.67
7.4.210.0120.00316.88
7.4.200.0040.00416.55
7.4.160.0090.00616.48
7.4.150.0160.00317.40
7.4.140.0070.01017.86
7.4.130.0060.01116.62
7.4.120.0100.01016.60
7.4.110.0040.01316.70
7.4.100.0100.00716.66
7.4.90.0030.01516.83
7.4.80.0140.00319.39
7.4.70.0090.00916.84
7.4.60.0160.00316.68
7.4.50.0040.00416.55
7.4.40.0110.00616.50
7.4.30.0070.01016.40
7.4.00.0030.01015.27
7.3.330.0030.00313.21
7.3.320.0000.00513.12
7.3.310.0030.00316.14
7.3.300.0000.00716.20
7.3.290.0070.00716.26
7.3.280.0070.01216.32
7.3.270.0070.01017.40
7.3.260.0130.00616.26
7.3.250.0110.01116.50
7.3.240.0080.00816.30
7.3.230.0160.00016.72
7.3.210.0090.01116.35
7.3.200.0070.01019.39
7.3.190.0100.00716.52
7.3.180.0140.00316.58
7.3.170.0110.01116.46
7.3.160.0120.00916.55
7.2.330.0090.00916.57
7.2.320.0070.01616.51
7.2.310.0100.00716.66
7.2.300.0120.00916.62
7.2.290.0040.01216.77
7.2.110.0180.00416.43
7.2.100.0120.00616.69
7.2.90.0290.00716.89
7.2.80.0140.00316.70
7.2.70.0170.00316.98
7.2.60.0390.00716.88
7.2.50.0060.01017.03
7.2.40.0130.00316.82
7.2.30.0330.00816.91
7.2.20.0150.00716.90
7.2.10.0140.00316.92
7.2.00.0030.01716.83
7.1.230.0060.00615.48
7.1.220.0060.01215.89
7.1.210.0110.00615.84
7.1.200.0150.00315.80
7.1.190.0130.00315.72
7.1.180.0350.00615.49
7.1.170.0090.00616.04
7.1.160.0110.00815.73
7.1.150.0140.00515.70
7.1.140.0420.00615.95
7.1.130.0120.00415.78
7.1.120.0120.00615.68
7.1.110.0130.00315.93
7.1.100.0160.00015.94
7.1.90.0150.00615.80
7.1.80.0090.00615.69
7.1.70.0050.00816.63
7.1.60.0130.00817.75
7.1.50.0120.00816.50
7.1.40.0200.00315.84
7.1.30.0080.01115.76
7.1.20.0110.00716.21
7.1.10.0130.00315.73
7.1.00.0070.04219.14
7.0.310.0160.00315.64
7.0.300.0140.00315.59
7.0.290.0120.00615.70
7.0.280.0100.00715.34
7.0.270.0080.00815.56
7.0.260.0080.00615.34
7.0.250.0120.00415.52
7.0.240.0130.00215.42
7.0.230.0090.00615.54
7.0.220.0120.00515.63
7.0.210.0060.00915.27
7.0.200.0050.00416.16
7.0.190.0100.00515.30
7.0.180.0130.00415.27
7.0.170.0160.00015.53
7.0.160.0110.00615.57
7.0.150.0130.00315.43
7.0.140.0060.04218.78
7.0.130.0090.00315.43
7.0.120.0090.00615.44
7.0.110.0000.01715.53
7.0.100.0150.00615.30
7.0.90.0090.00515.62
7.0.80.0050.00915.64
7.0.70.0170.00015.55
7.0.60.0120.02817.68
7.0.50.0100.03316.66
7.0.40.0090.04416.85
7.0.30.0310.03816.67
7.0.20.0200.02816.81
7.0.10.0110.04516.88
7.0.00.0090.03616.70
5.6.380.0100.00814.23
5.6.370.0170.00014.67
5.6.360.0070.01214.39
5.6.350.0130.00314.24
5.6.340.0160.00314.05
5.6.330.0120.00513.92
5.6.320.0130.00014.23
5.6.310.0110.00314.41
5.6.300.0110.00314.49
5.6.290.0040.01214.32
5.6.280.0050.04217.56
5.6.270.0090.00614.71
5.6.260.0070.00714.17
5.6.250.0070.00814.46
5.6.240.0160.00314.33
5.6.230.0170.00014.08
5.6.220.0140.00314.32
5.6.210.0060.04817.40
5.6.200.0090.02516.29
5.6.190.0060.03117.31
5.6.180.0210.04017.38
5.6.170.0120.03517.29
5.6.160.0090.02517.36
5.6.150.0120.04216.26
5.6.140.0150.03216.24
5.6.130.0060.04116.39
5.6.120.0110.04117.60
5.6.110.0150.04117.70
5.6.100.0150.03817.77
5.6.90.0120.02717.60
5.6.80.0100.03717.26
5.6.70.0120.00413.98
5.6.60.0180.00014.15
5.6.50.0120.00414.36
5.6.40.0050.01014.06
5.6.30.0040.01114.08
5.6.20.0090.00414.16
5.6.10.0030.01414.30
5.6.00.0110.00314.13
5.5.380.0040.01112.79
5.5.370.0040.00812.79
5.5.360.0060.00312.79
5.5.350.0150.04616.60
5.5.340.0090.04015.36
5.5.330.0090.04316.43
5.5.320.0280.03716.50
5.5.310.0240.03816.53
5.5.300.0090.04515.39
5.5.290.0080.02715.38
5.5.280.0050.04916.87
5.5.270.0100.04216.79
5.5.260.0060.03416.71
5.5.250.0080.04316.73
5.5.240.0120.02616.48
5.5.230.0040.00712.79
5.5.220.0100.00312.79
5.5.210.0070.00412.79
5.5.200.0040.00812.79
5.5.190.0070.00312.79
5.5.180.0070.00312.79
5.5.170.0060.00614.21
5.5.160.0070.00712.79
5.5.150.0060.00612.79
5.5.140.0060.00312.79
5.5.130.0030.00512.79
5.5.120.0060.00612.79
5.5.110.0120.00012.79
5.5.100.0080.00512.79
5.5.90.0070.00412.79
5.5.80.0070.00712.79
5.5.70.0000.01212.79
5.5.60.0070.00412.79
5.5.50.0070.00212.79
5.5.40.0080.00612.79
5.5.30.0050.00512.79
5.5.20.0070.00412.79
5.5.10.0090.00612.79
5.5.00.0080.00512.79
5.4.450.0420.02015.96
5.4.440.0130.02315.95
5.4.430.0180.02216.00
5.4.420.0250.02916.01
5.4.410.0230.02016.03
5.4.400.0220.02515.93
5.4.390.0230.02315.85
5.4.380.0610.03115.66
5.4.370.0540.03615.65
5.4.360.0600.02515.69
5.4.350.0580.03215.69
5.4.340.0470.03515.65
5.4.330.0060.00312.79
5.4.320.0080.01812.62
5.4.310.0080.02212.62
5.4.300.0030.02612.62
5.4.290.0040.02712.62
5.4.280.0080.01812.57
5.4.270.0100.02312.57
5.4.260.0100.01912.57
5.4.250.0080.02012.57
5.4.240.0100.02112.57
5.4.230.0080.02112.56
5.4.220.0080.02112.56
5.4.210.0050.02312.56
5.4.200.0040.02412.56
5.4.190.0070.02312.56
5.4.180.0080.02012.56
5.4.170.0070.02112.57
5.4.160.0070.02312.56
5.4.150.0060.02512.56
5.4.140.0060.02212.40
5.4.130.0040.02312.40
5.4.120.0040.02612.38
5.4.110.0070.02212.38
5.4.100.0090.02312.38
5.4.90.0060.02612.38
5.4.80.0060.01912.38
5.4.70.0070.01912.38
5.4.60.0070.01912.38
5.4.50.0060.02012.38
5.4.40.0080.01812.37
5.4.30.0080.02012.37
5.4.20.0090.01912.37
5.4.10.0060.02512.37
5.4.00.0060.02412.11
5.3.290.0060.02112.79
5.3.280.0040.02312.75
5.3.270.0060.02612.76
5.3.260.0080.02812.76
5.3.250.0110.02312.76
5.3.240.0090.02312.75
5.3.230.0060.02312.75
5.3.220.0070.02712.74
5.3.210.0120.02812.73
5.3.200.0100.01812.73
5.3.190.0070.02112.73
5.3.180.0090.02012.73
5.3.170.0100.02012.73
5.3.160.0070.02512.73
5.3.150.0090.02112.73
5.3.140.0080.02112.72
5.3.130.0110.02212.72
5.3.120.0090.02212.72
5.3.110.0080.02012.72
5.3.100.0090.02112.45
5.3.90.0080.02212.44
5.3.80.0060.02712.43
5.3.70.0070.02612.43
5.3.60.0040.02812.43
5.3.50.0060.02112.39
5.3.40.0080.02012.39
5.3.30.0090.02212.37
5.3.20.0030.02912.26
5.3.10.0040.02712.24
5.3.00.0060.02312.24
5.2.170.0050.01910.99
5.2.160.0040.01910.99
5.2.150.0030.02210.99
5.2.140.0070.02010.99
5.2.130.0070.01810.97
5.2.120.0040.02310.97
5.2.110.0070.02010.97
5.2.100.0060.02310.97
5.2.90.0070.02210.97
5.2.80.0060.02210.97
5.2.70.0030.02010.97
5.2.60.0050.02110.94
5.2.50.0050.02010.93
5.2.40.0060.01510.92
5.2.30.0070.01610.91
5.2.20.0030.01710.91
5.2.10.0060.01510.87
5.2.00.0080.01410.80
5.1.60.0020.01810.44
5.1.50.0040.01610.44
5.1.40.0020.01810.43
5.1.30.0040.01610.60
5.1.20.0070.01310.61
5.1.10.0050.01510.47
5.1.00.0040.01510.48
5.0.50.0060.0159.71
5.0.40.0030.0179.64
5.0.30.0070.0219.55
5.0.20.0020.0149.54
5.0.10.0060.0099.53
5.0.00.0030.0189.52
4.4.90.0010.0138.79
4.4.80.0030.0108.77
4.4.70.0030.0108.77
4.4.60.0050.0078.77
4.4.50.0020.0128.78
4.4.40.0040.0148.75
4.4.30.0020.0128.77
4.4.20.0030.0098.82
4.4.10.0020.0098.82
4.4.00.0060.0128.77
4.3.110.0030.0118.73
4.3.100.0050.0078.73
4.3.90.0040.0118.71
4.3.80.0070.0128.69
4.3.70.0010.0128.71
4.3.60.0020.0138.71
4.3.50.0040.0118.71
4.3.40.0060.0148.66
4.3.30.0030.0108.05
4.3.20.0020.0158.04
4.3.10.0030.0128.01
4.3.00.0080.00614.37

preferences:
42.21 ms | 401 KiB | 5 Q